Patent Publication Number: US-2017362431-A1

Title: Copolycarbonate compositions with improved rheological and optical properties containing diglycerolesters

Description:
The invention relates to copolycarbonate compositions comprising carboxylic esters of diglycerol which exhibit both improved rheological and optical properties, to the use thereof for producing blends, moldings and to moldings obtainable therefrom. 
     Copolycarbonates belong to the group of technical thermoplastics. They find versatile applications in the electrical and electronics sector, as a housing material of lamps and in applications where particular thermal and mechanical properties are required, for example hairdryers, applications in the automobile sector, plastic covers, reflectors, diffusers or light conducting elements and lamp covers or lamp bezels. These copolycarbonates may be used as blend partners for further thermoplastic plastics materials. 
     In these compositions good thermal and mechanical properties such as a high Vicat temperature (heat distortion resistance) and glass transition temperature are practically always compulsory. However, at the same time high glass transition temperatures and heat distortion resistances also result in relatively high melt viscosities which in turn has a negative effect on processability, for example in injection molding. 
     The flowability of (co)polycarbonate compositions/(co)PC blends can be increased by the addition of low molecular weight compounds. Since substances of this kind, however, simultaneously act as plasticizers, they lower the heat distortion resistance and glass transition temperature of the polymer matrix. This in turn is undesirable, since this reduces the temperature use range of the materials. 
     DE 102004020673 describes copolycarbonates having improved flowability based on bisphenols having an ether/thioether linkage. 
     DE 3918406 discloses blends for optical data storage means, based on a specific polycarbonate with elastomers or other thermoplastics and the use thereof in optical applications, specifically optical data storage means such as compact discs. 
     EP 0 953 605 describes linear polycarbonate compositions having improved flow characteristics, characterized in that cyclic oligocarbonates are added in large amounts, for example 0.5% to 4%, and are homogenized in the matrix of a linear BPA polycarbonate at 285° C. by means of a twin-shaft extruder. In the course of this, the flowability increases as the amount of cyclic oligocarbonates rises. At the same time, however, there is a distinct decrease in the glass transition temperature and hence the heat distortion resistance. This is undesirable in the industrial applications of (co)polycarbonate compositions having relatively high heat distortion resistances. This disadvantage then has to be compensated for through the use of higher amounts of costly cobisphenols. 
     The conventional way of improving flow is to use BDP (bisphenol A diphosphate), in amounts of up to more than 10 wt %, in order to achieve the desired effect. However, this causes a very severe reduction in heat distortion resistance. 
     Diglycerol esters are mentioned in connection with transparent, antistatic compositions, for example in JP2011108435 A, JP2010150457 A, JP2010150458 A. 
     JP2009292962 A describes specific embodiments where the ester has at least 20 carbon atoms. JP2011256359 A describes flame-retarded, UV-stabilized, antistatic compositions using diglycerol esters, 
     The present invention accordingly has for its object to find compositions comprising aromatic polycarbonate compositions which exhibit an improved flowability while heat distortion resistance remains virtually constant. 
     However, the prior art does not provide one skilled in the art with any indication of how to improve the flowability of (co)polycarbonate compositions/of PC blends for a predetermined/defined heat distortion resistance. In particular, there is no indication concerning the effect of esters of carboxylic acids with diglycerol on rheological and optical properties in a concentration range smaller than 5 wt %. 
     It was found that, surprisingly, compositions composed of specific (High Tg) copolycarbonates (component A; T g : glass transition temperature) with a further (co)polycarbonate (component B) consistently show an improved flowability when certain amounts of an ester of carboxylic acids with diglycerol are present. The heat distortion resistance (Vicat temperature) remains practically unchanged. 
     The described novel property combinations are an important criterion for the mechanical and thermal performance of injection molded/extruded components. Injection moldings or extrudates produced from the copolycarbonate compositions according to the invention have significantly improved flow properties without a deterioration in thermal properties. 
     The present invention therefore provides copolycarbonate compositions comprising
         A) 67.0 to 99.95 wt % of at least one copolycarbonate comprising monomer units selected from the group consisting of the structural units of general formulae (1a), (1b), (1c) and (1d)       

     
       
         
         
             
             
         
       
         
         
           
             
               
                 in which
               R 1  represents hydrogen or C 1 -C 4 -alkyl, preferably hydrogen,   R 2  represents C 1 -C 4 -alkyl, preferably methyl,   n represents 0, 1, 2 or 3, preferably 3, and   R 3  represents C 1 -C 4 -alkyl, aralkyl or aryl, preferably methyl or phenyl, very particularly preferably methyl,   
             
                 or 
                 67.0 to 99.95 wt % of a blend of the one or more copolycarbonates and at least one further homo- or copolycarbonate comprising one or more monomer units of general formula (2): 
               
             
           
         
       
    
     
       
         
         
             
             
         
       
         
         
           
             
               
                 in which
               R 4  represents H, linear or branched C 1 -C 10  alkyl, preferably linear or branched C 1 -C 6  alkyl, particularly preferably linear or branched C 1 -C 4  alkyl, very particularly preferably C 1 -alkyl (methyl), and   R 5  represents linear or branched C 1 -C 10  alkyl, preferably linear or branched C 1 -C 6  alkyl, particularly preferably linear or branched C 1 -C 4  alkyl, very particularly preferably C 1 -alkyl (methyl);   
             
                 wherein the optionally present further homo- or copolycarbonate has no monomer units of formulae (1a), (1b), (1c) and (1d); 
               
             
             B) 0.05 to 3.0 wt % of at least one di glycerol ester; and 
             C) 0 to 30.0 wt % of one or more additives and/or fillers. 
           
         
       
    
     Definitions 
     C 1 -C 4 -alkyl in the context of the invention represents for example methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec.-butyl, tert.-butyl, C 1 -C 6 -alkyl moreover represents for example n-pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, neo-pentyl, 1-ethylpropyl, cyclohexyl, cyclopentyl, n-hexyl, 1,1-dimethylpropyl, 1,2-dimethylpropyl, 1,2-dimethylpropyl, 1-methylpentyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 1,1-dimethylbutyl, 1,2-dimethylbutyl, 1,3-dimethylbutyl, 2,2-dimethylbutyl, 2,3-dimethylbutyl, 3,3-dimethylbutyl, 1-ethylbutyl, 2-ethylbutyl, 1,1,2-trimethylpropyl, 1,2,2-trimethylpropyl, 1-ethyl-1-methylpropyl, 1-ethyl-2-methylpropyl or 1-ethyl-2-methylpropyl, C 1 -C  10 -alkyl moreover represents for example n-heptyl and n-octyl, pinacyl, adamantyl, the isomeric menthyls, n-nonyl, n-decyl, C 1 -C 34 -alkyl moreover represents for example n-dodecyl, n-tridecyl, n-tetradecyl, n-hexadecyl or n-octadecyl. The same applies for the corresponding alkyl radical for example in aralkyl/alkylaryl, alkylphenyl or alkylcarbonyl radicals. Alkylene radicals in the corresponding hydroxyalkyl or aralkyl/alkylaryl radicals represent for example the alkylene radicals corresponding to the preceding alkyl radicals. 
     Aryl represents a carbocyclic aromatic radical having 6 to 34 skeletal carbon atoms. The same applies for the aromatic part of an arylalkyl radical, also known as an aralkyl radical, and for aryl constituents of more complex groups, for example arylcarbonyl radicals. 
     Examples of C 6 -C 34 -aryl are phenyl, o-, p-, m-tolyl, naphthyl, phenanthrenyl, anthracenyl and fluorenyl. 
     Arylalkyl and aralkyl each independently represent a straight-chain, cyclic, branched or unbranched alkyl radical as defined above which may be mono-, poly- or persubstituted by aryl radicals as defined above. 
     The above lists are illustrative and should not be regarded as limiting. 
     In the context of the present invention, ppb and ppm are understood to mean parts by weight unless stated otherwise. 
     In the context of the present invention—unless explicitly stated otherwise—the stated wt % values for the components A, B and C are each based on the total weight of the composition. The composition may contain further components in addition to components A, B and C. In a preferred embodiment the composition consists of the components A, B and optionally C. 
     Component A 
     The copolycarbonate composition according to the invention comprises as component A 67.0 to 99.95 wt % of a copolycarbonate comprising one or more monomer units of formulae (1a), (1b), (1c) and (1d) or of a blend of the copolycarbonate comprising one or more monomer units of formulae (1a), (1b), (1c) and (1d) and a further homo- or copolycarbonate comprising one or more monomer units of general formula (2). 
     It is preferable when component A is present in the composition in an amount of 70.0 to 99.0 wt %, preferably 80.0 to 99.0 wt % and particularly preferably 85.0 to 98.5 wt %, in each case based on the total weight of the composition. 
     In a preferred embodiment the amount of the copolycarbonate comprising one or more monomer unit(s) of general formulae (1a), (1b), (1c) and (1d) in the composition is at least 50 wt %, particularly preferably at least 60 wt %, very particularly preferably at least 75 wt %. 
     The monomer unit(s) of general formula (1a) is/are introduced via one or more corresponding diphenols of general formula (1a′): 
     
       
         
         
             
             
         
       
     
     in which
         R 1  represents hydrogen or C 1 -C 4 -alkyl, preferably hydrogen,   R 2  represents C 1 -C 4 -alkyl, preferably methyl, and   n represents 0, 1, 2 or 3, preferably 3.       

     The diphenols of formulae (1a′) to be employed in accordance with the invention and the employment thereof in homopolycarbonates are disclosed in DE 3918406 for example. 
     Particular preference is given to 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane (Bisphenol TMC) having the formula (1a″): 
     
       
         
         
             
             
         
       
     
     The monomer unit(s) of general formula (1b), (1c) and (1d) are introduced via one or more corresponding diphenols of general formulae (1b′), (1c′) and (1d′): 
     
       
         
         
             
             
         
       
         
         
           
             in which R 3  represents C 1 -C 4 -alkyl, aralkyl or aryl, preferably methyl or phenyl, very particularly preferably methyl, 
           
         
       
    
     In addition to one or more monomer units of formulae (1a), (1b), (1c) and (1d) the copolycarbonate of component A may comprise one or more monomer unit(s) of formula (3): 
     
       
         
         
             
             
         
       
     
     in which
         R 6  and R 7  independently of one another represent H, C 1 -C 18 -alkyl-, C 1 -C 18 -alkoxy, halogen such as Cl or Br or respectively optionally substituted aryl or aralkyl, preferably H or C 1 -C 12 -alkyl, particularly preferably H or C 1 -C 8 -alkyl and very particularly preferably H or methyl, and   Y represents a single bond, —SO 2 —, —CO—, —O—, —S—, C 1 -C 6 -alkylene or C 2 -C 5 -alkylidene, furthermore C 6 -C 12 -arylene, which may optionally be fused with further heteroatom-comprising aromatic rings.       

     The monomer unit(s) of general formula (3) is/are introduced via one or more corresponding diphenols of general formula (3a): 
     
       
         
         
             
             
         
       
     
     wherein R 6 , R 7  and Y each have the meanings stated above in connection with formula (3). 
     Examples of the diphenols of formula (3a) which may be employed in addition to the diphenols of formula (1a′), (1b), (1c′) and (1d′) include hydroquinone, resorcinol, dihydroxybiphenyls, bis-(hydroxyphenyl)-alkanes, bis-(hydroxyphenyl)-sulfides, bis-(hydroxyphenyl) ethers, bis-(hydroxyphenyl)-ketones, bis-(hydroxyphenyl)-sulfones, bis-(hydroxyphenyl)-sulfoxides, α,α′-bis-(hydroxyphenyl)-diisopropylbenzenes and the ring-alkylated and ring-halogenated compounds thereof and also α,ω-bis-(hydroxyphenyl)-polysiloxanes. 
     Preferred diphenols of formula (3a) are for example 4,4′-dihydroxybiphenyl (DOD), 4,4′-dihydroxybiphenyl ether (DOD ether), 2,2-bis-(4-hydroxyphenyl)-propane (bisphenol A), 2,4-bis-(4-hydroxyphenyl)-2-methylbutane, 1,1-bis-(4-hydroxyphenyl)-1 -phenylethane, 1,1-bis[2-(4-hydroxyphenyl)-2-propyl]-benzene, 1,3-bis[2-(4-hydroxyphenyl)-2-propyl]-benzene (bisphenol M), 2,2-bis-(3-methyl-4-hydroxyphenyl)-propane, 2,2-bis-(3-chloro-4-hydroxyphenyl)-propane, bis-(3,5-dimethyl-4-hydroxyphenyl)-methane, 2,2-bis-(3,5-dimethyl-4-hydroxyphenyl)-propane, bis-(3,5-dimethyl-4-hydroxyphenyl)-sulfone, 2,4-bis-(3,5-dimethyl-4-hydroxyphenyl)-2-methylbutane, 2,2-bis-(3,5-dichloro-4-hydroxyphenyl)-propane and 2,2-bis-(3,5-dibromo-4-hydroxyphenyl)-propane. 
     Particularly preferred diphenols are for example 2,2-bis-(4-hydroxyphenyl)-propane (bisphenol A), 4,4′-dihydroxybiphenyl (DOD), 4,4′-dihydroxybiphenyl ether (DOD ether), 1,3-bis[2-(4-hydroxyphenyl)-2-propyl]-benzene (bisphenol M), 2,2-bis-(3,5-dimethyl-4-hydroxyphenyl)-propane, 1,1 -bis-(4-hydroxyphenyl)-1 -phenylethane, 2,2-bis-(3,5-dichloro-4-hydroxyphenyl)-propane and 2,2-bis-(3,5-dibromo-4-hydroxyphenyl)-propane. 
     Very particular preference is given to compounds of general formula (3b), 
     
       
         
         
             
             
         
       
         
         
           
             in which R 8  represents H, linear or branched C 1 -C 10 -alkyl, preferably linear or branched C 1 -C 6 -alkyl, particularly preferably linear or branched C 1 -C 4 -alkyl, very particularly preferably H or C 1 -alkyl (methyl), and 
             in which R 9  represents linear or branched C 1 -C 10 -alkyl, preferably linear or branched C 1 -C 6 -alkyl, particularly preferably linear or branched C 1 -C 4 -alkyl, very particularly preferably C 1 -alkyl (methyl). 
           
         
       
    
     Diphenol (3c) in particular is very particularly preferred here. 
     
       
         
         
             
             
         
       
     
     The diphenols of general formulae (3a) may be used either alone or else in admixture with one another. The diphenols are known from the literature or producible by literature methods (see for example H. J. Buysch et al., Ullmann&#39;s Encyclopedia of Industrial Chemistry, VCH, New York 1991, 5. Ed., Vol. 19, p. 348). 
     The total proportion of the monomer units of formulae (1a), (1b), (1c) and (1d) in the copolycarbonate is preferably 0.1-88 mol %, particularly preferably 1 - 86 mol %, very particularly preferably 5 - 84 mol % and in particular 10 - 82 mol % (based on the sum of the moles of diphenols employed). 
     In a preferred embodiment of the composition according to the invention the diphenoxide units of the copolycarbonates of component A are derived from monomers having the general structures of the abovedescribed formulae (1a″) and (3a). 
     In another preferred embodiment of the composition according to the invention the diphenoxide units of the copolycarbonates of component A are derived from monomers having the general structures of the abovedescribed formulae (3a) and (1b), (1c′) and/or (1d′). 
     The copolycarbonate component of the copolycarbonate compositions may be present as block and random copolycarbonate. Random copolycarbonates are particularly preferred. 
     The ratio of the frequency of the diphenoxide monomer units in the copolycarbonate is calculated from the molar ratio of the diphenols employed. 
     The optionally present homo- or copolycarbonate of component A comprises monomer unit(s) of general formula (2). Said units are introduced via a diphenol of general formula (2a): 
     
       
         
         
             
             
         
       
         
         
           
             in which. R 4  represents H, linear or branched C 1 -C 10 -alkyl, preferably linear or branched C 1 -C 6 -alkyl, particularly preferably linear or branched C I  -C 4 -alkyl, very particularly preferably H or C 1 -alkyl (methyl) and 
             in which R 5  represents linear or branched C 1 -C  10 -alkyl, preferably linear or branched C 1 -C 6 -alkyl, particularly preferably linear or branched C 1 -C 4 -alkyl, very particularly preferably C 1 -alkyl (methyl). 
           
         
       
    
     Diphenol (3c) in particular is very particularly preferred here. 
     
       
         
         
             
             
         
       
     
     In addition to one or more monomer units of general formulae (2) one or more monomer units of formula (3) as described above for component A may be present. 
     Provided that a blend is present as component A said blend preferably comprises a homopolycarbonate based on bisphenol A. 
     Production Process 
     Preferred methods of production of the homo- or coplycarbonates (also collectively referred to hereinbelow as (co) polycarbonates) preferably employed in the composition according to the invention as component A, including the (co)polyestercarbonates, are the interfacial method and the melt transesterification process. 
     To obtain high molecular weight (co)polycarbonates by the interfacial method the alkali salts of diphenols are reacted with phosgene in a biphasic mixture. The molecular weight may be controlled by the amount of monophenols which act as chain terminators, for example phenol, tert.-butylphenol or cumylphenol, particularly preferably phenol, tert.-butylphenol. These reactions form practically exclusively linear polymers. This may be confirmed by end-group analysis. Through deliberate use of so-called branching agents, generally polyhydroxylated compounds, branched polycarbonates are also obtained. 
     Employable as branching agents are small amounts, preferably amounts between 0,05 and 5 mol %, particularly preferably 0.1-3 mol %, very particularly preferably 0.1-2 mol %, based on the moles of diphenols employed, of trifunctional compounds such as, for example, isatin biscresol (IBC) or phloroglucin, 4,6-dimethyl-2,4,6-tri-(4-hydroxyphenyl)-hept-2-ene; 4,6-dimethyl-2,4,6-tri-(4-hydroxyphenyl)-heptane; 1,3,5-tri-(4-hydroxyphenyl)-benzene; 1,1,1-tri-(4-hydroxyphenyl)-ethane (TIPP; tri-(4-hydroxyphenyl)-phenylmethane; 2,2-bis-[4,4-bis-(4-hydroxyphenyl)-cyclo-hexyl]-propane; 2,4-bis-(4-hydroxyphenyl-isopropyl)-phenol; 2,6-bis-(2-hydroxy-5′-methyl-benzyl)-4-methylphenol; 2-(4-hydroxyphenyl)-2-(2,4-dihydroxyphenyl)-propane; hexa-(4-(4-hydroxyphenyl-isopropyl)-phenyl) orthoterephthalate; tetra-(4-hydroxyphenyl)-methane; tetra-(4-(4-hydroxyphenyl-isopropyl)-phenoxy)-methane; α,α′,α″-tris-(4-hydroxyphenyl)-1,3,5-triisopropylbenzene; 2,4-dihydroxybenzoic acid; trimesic acid; cyanuric chloride; 3,3-bis-(3-methyl-4-hydroxyphenyl)-2-oxo-2,3-dihydroindole; 1,4-bis-(4′,4″-dihydroxytriphenyl)-methyl)-benzene and in particular 1,1,1-tri-(4-hydroxyphenyl)-ethane (THPE) and bis-(3-methyl-4-hydroxyphenyl)-2-oxo-2,3-dihydroindole. Preference is given to using isatin biscresol and also 1,1,1-tri-(4-hydroxyphenyl)-ethane (THPE) and bis-(3-methyl-4-hydroxyphenyl)-2-oxo-2,3-dihydroindole as branching agents. 
     The use of these branching agents results in branched structures. The resulting long-chain branching normally leads to rheological properties of the obtained polycarbonates which manifests in a structural viscosity compared to linear types. 
     The amount of chain terminator to be employed is preferably 0.5 mol % to 10 mol %, preferably 1 mol % to 8 mol %, particularly preferably 2 mol % to 6 mol %, based on the moles of diphenols employed in each case. The addition of the chain terminators may be effected before, during or after the phosgenation, preferably as a solution in a solvent mixture of methylene chloride and chlorobenzene (8-15 wt %). 
     To obtain high molecular weight (co)polycarbonates by the melt transesterification process diphenols are reacted in the melt with carbonic diesters, normally diphenyl carbonate, in the presence of catalysts, such as alkali metal salts, ammonium or phosphonium compounds. 
     The melt transesterification process is described f©r example in Encyclopedia of Polymer Science, Vol. 10 (1969), Chemistry and Physics of Polycarbonates, Polymer Reviews, H. Schnell, Vol. 9, John Wiley and Sons, Inc. (1964) and in DE-C 10 31 512. 
     In the melt transesterification process diphenols of formulae (2a) and optionally (1a) are transesterified in the melt with carbonic diesters using suitable catalysts and optionally further added substances. 
     Carbonic diesters for the purposes of the invention are those of formulae (4) and (5) 
     
       
         
         
             
             
         
       
     
     wherein
     R, R′ and R″ may independently of one another represent H, optionally branched C 1 -C 34 -alkyl/cycloalkyl, C 7 -C 34 -alkaryl or C 6 -C 34 -aryl,   

     for example 
     diphenyl carbonate, butylphenyl phenyl carbonate, di(butylphenyl) carbonate, isobutylphenyl phenyl carbonate, di(isobutylphenyl) carbonate, tert-butylphenyl phenyl carbonate, di(tert-butylphenyl) carbonate, n-pentylphenyl phenyl carbonate, di(n-pentylphenyl) carbonate, n-hexylphenyl phenyl carbonate, di(n-hexylphenyl) carbonate, cyclohexylphenyl phenyl carbonate, di(cyclohexylphenyl) carbonate, phenylphenol phenyl carbonate, di(phenylphenol) carbonate, isooctylphenyl phenyl carbonate, di(isooctylphenyl) carbonate, n-nonylphenyl phenyl carbonate, di(n-nonylphenyl) carbonate, cumylphenyl phenyl carbonate, di(cumylphenyl) carbonate, naphthylphenyl phenyl carbonate, di(naphthylphenyl) carbonate, di-tert-butylphenyl phenyl carbonate, di(di-tert-butylphenyl) carbonate, dicurnylphenyl phenyl carbonate, di(dicurnylphenyl) carbonate, 4-phenoxyphenyl phenyl carbonate, di(4-phenoxyphenyl) carbonate, 3-pentadecylphenyl phenyl carbonate, di-(3-pentadecylphenyl) carbonate, tritylphenyl phenyl carbonate, di(tritylphenyl) carbonate, 
     preferably diphenyl carbonate, tert-butylphenyl phenyl carbonate, di-(tert-butylphenyl) carbonate, phenylphenol phenyl carbonate, di(phenylphenol) carbonate, cumylphenyl phenyl carbonate, di(cumylphenyl) carbonate, particularly preferably diphenyl carbonate. 
     Mixtures of the recited carbonic diesters may also be employed. 
     The proportion of carbonic esters is 100 to 130 mol %, preferably 103 to 120 mol %, particularly preferably 103 to 109 mol %, based on the one or more diphenols. 
     As described in the recited literature basic catalysts such as alkali metal and alkaline earth metal hydroxides and oxides but also ammonium or phosphonium salts referred to hereinbelow as onium salts are employed as catalysts in the melt transesterification process. Preference is given to employing onium salts, particularly preferably phosphonium salts. For the purposes of the invention phosphonium salts are those having the following general formula (6) 
     
       
         
         
             
             
         
       
     
     wherein
         R 9-12  may be identical or different C 1 -C 10 -alkyls, C 6 -C 10 -aryls, C 7 -C 10 -aralkyls or C 5 -C 6 -cycloalkyls, preferably methyl or C 6 -C 14 -aryls, particularly preferably methyl or phenyl, and   X −  may be an anion such as hydroxide, sulfate, hydrogensulfate, hydrogencarbonate, carbonate, a halide, preferably chloride, or an alkoxide of formula OR 17 , wherein R 17  may be C 6 -C 14 -aryl or C 7 -C 12 -aralkyl, preferably phenyl.       

     Preferred catalysts are tetraphenylphosphonium chloride, tetraphenylphosphonium hydroxide, tetraphenylphosphonium phenoxide, particularly preferably tetraphenylphosphonium phenoxide. 
     The catalysts are preferably employed in amounts of 10 −8  to 10 −3  mol, based on one mole of diphenol, particularly preferably in amounts of 10 −7  to 10 −4  mol. 
     Further catalysts may be employed alone or optionally in addition to the onium salt to increase the rate of the polymerization. These include salts of alkali metals and alkaline earth metals, such as hydroxides, alkoxides and aryloxides of lithium, sodium and potassium, preferably hydroxide, alkoxide or aryloxide salts of sodium. Greatest preference is given to sodium hydroxide and sodium phenoxide. The amounts of the cocatalyst may be in the range from 1 to 200 ppb, preferably 5 to 150 ppb and most preferably 10 to 125 ppb in each case reckoned as sodium. 
     The addition of the catalysts is effected in solution in order to avoid deleterious overconcentrations during metering. The solvents are system- and process-inherent compounds, for example diphenol, carbonic diesters or monohydroxyaryl compounds. Particular preference is given to monohydroxyaryl compounds because it is familiar to one skilled in the art that the diphenols and carbonic dieesters readily undergo transformation and decomposition even at only mildly elevated temperatures, in particular under the action of catalysts. This negatively affects polycarbonate qualities. In the industrially most important transesterification process for producing polycarbonate the preferred compound is phenol. Phenol is also a compelling option because during production the preferably employed tetraphenylphosphonium phenoxide catalyst is isolated as a cocrystal with phenol. 
     The process for producing the (co) polycarbonates present in the composition according to the invention by the transesterification process may be discontinuous or else continuous. Once the diphenols of formulae (2a) and optionally (1a) and carbonic diesters are present as a melt, optionally with further compounds, the reaction is initiated in the presence of the catalyst. The conversion/the molecular weight is increased with rising temperatures and falling pressures in suitable apparatuses and devices by removing the eliminated monohydroxyaryl compound until the desired final state is achieved. Choice of the ratio of diphenol to carbonic diester and of the rate of loss of the carbonic diester via the vapors and of any added compounds, for example of a higher-boiling monohydroxyaryl compound, said rate of loss arising through choice of procedure/plant for producing the polycarbonate, is what decides the end groups in terms of their nature and concentration. 
     With regard to the manner in which, the plant in which and the procedure by which the process is executed, there is no limitation or restriction. 
     Moreover, there is no specific limitation and restriction with regard to the temperatures, the pressures and catalysts used, in order to perform the melt transesterification reaction between the diphenol and the carbonic diester, and any other reactants added. Any conditions are possible, provided that the temperatures, pressures and catalysts chosen enable a melt transesterification with correspondingly rapid removal of the eliminated monohydroxyaryl compound. 
     The temperatures over the entire process are generally 180 to 330° C. at pressures of 15 bar absolute to 0.01 mbar absolute. 
     It is normally a continuous procedure that is chosen, because this is advantageous for product quality. 
     Preferably, the continuous process for producing polycarbonates is characterized in that one or more diphenols with the carbonic diester, also any other reactants added, using the catalysts, after pre-condensation, without removing the monohydroxyaryl compound formed, in several reaction evaporator stages which then follow at temperatures rising stepwise and pressures falling stepwise, the molecular weight is built up to the desired level. 
     The devices, apparatuses and reactors that are suitable for the individual reaction evaporator stages are, in accordance with the process sequence, heat exchangers, flash apparatuses, separators, columns, evaporators, stirred vessels and reactors or other purchasable apparatuses which provide the necessary residence time at selected temperatures and pressures. The devices chosen must enable the necessary input of heat and be constructed such that they are able to cope with the continuously increasing melt viscosities. 
     All devices are connected to one another by pumps, pipelines and valves. The pipelines between all the devices should of course be as short as possible and the curvature of the conduits should be kept as low as possible in order to avoid unnecessarily prolonged residence times. At the same time, the external, i.e. technical, boundary conditions and requirements for assemblies of chemical plants should be observed. 
     To perform the process by a preferred continuous procedure the coreactants can either be melted together or else the solid diphenol can be dissolved in the carbonic diester melt or the solid carbonic diester can be dissolved in the melt of the diphenol or both raw materials are combined in molten form, preferably directly from production. The residence times of the separate melts of the raw materials, in particular the residence time of the melt of the diphenol, are adjusted so as to be as short as possible. The melt mixture, by contrast, because of the depressed melting point of the raw material mixture compared to the individual raw materials, can reside for longer periods at correspondingly lower temperatures without loss of quality. 
     Thereafter, the catalyst, preferably dissolved in phenol, is mixed in and the melt is heated to the reaction temperature. At the start of the industrially important process for producing polycarbonate from 2,2-bis(4-hydroxyphenyl)propane and diphenyl carbonate, this temperature is 180 to 220° C., preferably 190 to 210° C., very particularly preferably 1.90° C. Over the course of residence times of 15 to 90 min, preferably 30 to 60 min, the reaction equilibrium is established without withdrawing the hydroxyaryl compound formed. The reaction can be run at atmospheric pressure, but for industrial reasons also at elevated pressure. The preferred pressure in industrial plants is 2 to 15 bar absolute. 
     The melt mixture is expanded into a first vacuum chamber, the pressure of which is set to 100 to 400 mbar, preferably to 150 to 300 mbar, and then heated directly back to the inlet temperature at the same pressure in a suitable device. In the expansion operation, the hydroxyaryl compound formed is evaporated together with monomers still present. After a residence time of 5 to 30 min in a bottoms reservoir, optionally with pumped circulation, at the same pressure and the same temperature, the reaction mixture is expanded into a second vacuum chamber, the pressure of which is 50 to 200 mbar, preferably 80 to 150 mbar, and directly afterwards heated in a suitable apparatus at the same pressure to a temperature of 190° C. to 250° C., preferably 210° C. to 240° C., particularly preferably 210° C. to 230° C. Here too, the hydroxyaryl compound formed is evaporated together with monomers still present. After a residence time of 5 to 30 min in a bottoms reservoir, optionally with pumped circulation, at the same pressure and the same temperature, the reaction mixture is expanded into a third vacuum chamber, the pressure of which is 30 to 150 mbar, preferably 50 to 120 mbar, and directly afterwards heated in a suitable apparatus at the same pressure to a temperature of 220° C. to 280° C., preferably 240° C. to 270° C., particularly preferably 240° C. to 260° C. Here too, the hydroxyaryl compound formed is evaporated together with monomers still present. After a residence time of 5 to 20 min in a bottoms reservoir, optionally with pumped circulation, at the same pressure and the same temperature, the reaction mixture is expanded into a further vacuum chamber, the pressure of which is 5 to 100 mbar, preferably 15 to 100 mbar, particularly preferably 20 to 80 mbar, and directly afterwards heated in a suitable apparatus at the same pressure to a temperature of 250° C. to 300° C., preferably 260° C. to 290° C., particularly preferably 260 to 280° C. Here too, the hydroxyaryl compound formed is evaporated together with monomers still present. 
     The number of these stages, 4 here by way of example, may vary between 2 and 6. The temperatures and pressures should be adjusted appropriately when the number of stages is altered in order to obtain comparable results. The relative viscosity of the oligomeric carbonate attained in these stages is between 1.04 and 1.20, preferably between 1.05 and 1.15, particularly preferably between 1.06 to 1.10. 
     The oligocarbonate thus obtained, after a residence time of 5 to 20 min in a bottoms reservoir, optionally with pumped circulation, at the same pressure and the same temperature as in the last flash/evaporator stage, is conveyed into a disk or cage reactor and subjected to further condensation at 250° C. to 310° C., preferably 250° C. to 290° C., particularly preferably 250° C. to 280° C., at pressures of 1 to 15 mbar, preferably 2 to 10 mbar, with residence times of 30 to 90 min, preferably 30 to 60 min. The product attains a relative viscosity of 1.12 to 1.28, preferably 1.13 to 1.26, particularly preferably 1.13 to 1.24. 
     The melt leaving this reactor is brought to the desired final viscosity/the final molecular weight in a further disk or cage reactor. The temperatures are 270° C. to 330° C., preferably 280° C. to 320° C., particularly preferably 280° C. to 310° C., and the pressure is 0.01 to 3 mbar, preferably 0.2 to 2 mbar, with residence times of 60 to 180 min, preferably 75 to 150 min. The relative viscosities are set to the level necessary for the application envisaged and are 1.18 to 1.40, preferably 1.18 to 1.36, particularly preferably 1.18 to 1.34. 
     The function of the two cage reactors or disk reactors can also be combined in one cage reactor or disk reactor. 
     The vapors from all the process stages are directly led off, collected and processed. This processing is generally effected by distillation in order to achieve high purities of the substances recovered. This can be effected, for example, according to German patent application no. 10 100 404. Recovery and isolation of the eliminated monohydroxyaryl compound in ultrapure form is an obvious aim from an economic and environmental point of view. The monohydroxyaryl compound can be used directly for producing a diphenol or a carbonic diester. 
     It is a feature of the disk or cage reactors that they provide a very large, constantly renewing surface under reduced pressure with high residence times. The disk or cage reactors have a geometric shape in accordance with the melt viscosities of the products. Suitable examples are reactors as described in DE 44 47 422 C2 and EP A 1 253 163 or twin shaft reactors as described in WO A 99/28 370. 
     The oligocarbonates, including those of very low molecular weight, and the finished polycarbonates are generally conveyed by means of gear pumps, screws of a wide variety of designs or positive displacement pumps of a specific design. 
     Analogously to the interfacial method, it is possible to use polyfunctional compounds as branching agents. 
     The relative solution viscosity of the poly- or copolycarbonates present in the composition of the invention, determined according to DIN 51562, is preferably in the range of 1.15-1.35, 
     The weight-average molecular weights of homo- or copolycarbonates present in the composition according to the invention are preferably 15 000 to 40 000 g/mol, particularly preferably 17 000 to 36 000 g/mol, and very particularly preferably 17 000 to 34 000 g/mol, and are determined by GPC against a polycarbonate calibration. 
     Particular preference is given to copolycarbonate compositions in which the copolycarbonate of component A and/or the optionally also present further homo- or copolycarbonate of component A at least partly comprise as an end group a structural unit derived from phenol and/or a structural unit derived from 4-tert-butylphenol. 
     The compositions according to the invention comprise as component B at least one diglycerol ester. Esters based on various carboxylic acids are suitable. The esters may also be based on different isomers of diglycerol. It is possible to use not only monoesters but also polyesters of diglycerol. It is also possible to use mixtures instead of pure compounds. 
     Isomers of diglycerol which form the basis of the diglycerol esters employed in accordance with the invention are the following: 
     
       
         
         
             
             
         
       
     
     Mono- or polyesterified isomers of these formulae can be employed as the diglycerol esters used in accordance with the invention. Employable mixtures are composed of the diglycerol reactants and the ester end products derived therefrom, for example having molecular weights of 348 g/mol (monolauryl ester) or 530 g/mol (dilauryl ester). 
     The diglycerol esters present according to the invention in the composition are preferably derived from saturated or unsaturated monocarboxylic acids having a chain length from 6 to 30 carbon atoms. Suitable monocarboxylic acids are for example caprylic acid (C 7 H 15 COOH, octanoic acid), capric acid (C 9 H 19 COOH, decanoic acid), lauric acid (C 11 H 23 COOH, dodecanoic acid), myristic acid (C 13 H 27 COOH, tetradecanoic acid), palmitic acid (C 15 H 31 COOH, hexadecanoic acid), margaric acid (C 16 H 33 COOH, heptadecanoic acid), stearic acid (C 17 H 35 COOH, octadecanoic acid), arachidic acid (C 11 H 39 COOH, cicosanoic acid), behenic acid (C 21 H 43 COOH, docosanoic acid), lignoceric acid (C 23 H 47 COOH, tetracosanoic acid), palmitoleic acid (C 15 H 29 COOH, (9Z)-hexadeca-9-enoic acid), petroselic acid (C 17 H 33 COOH, (6Z)-octadeca-6-enoic acid), (9Z)-octadeca-9-enoic acid), elaidic acid (C 17 H 33 COOH, (9E)-octadeca-9-enoic acid), linoleic acid (C 17 H 31 COOH, (9Z,12Z)-octadeca-9,12-dienoic acid), alpha- and gamma-linolenic acid (C 17 H 29 COOH, (9Z,12Z,15Z)-octadeca-9,12,15-trienoic acid and (6Z,9Z,12Z)-octadeca-6,9,12-trienoic acid), arachidonic acid (C 19 H 31 COOH, (5Z,8Z,11Z,14Z)-eicosa-5,8,11,14-tetraenoic acid), timnodonic acid (C 19 H 29 COOH, (5Z,8Z,11Z,14Z,17Z)-eicosa-5,8,11,14,17-pentaenoic acid) and cervonic acid. (C 21 H 31 COOH, (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoic acid). Particular preference is given to lauric acid, palmitic acid and stearic acid. 
     In a preferred embodiment the diglycerol ester present in the composition is at least one ester of formula (I) 
     
       
         
         
             
             
         
       
     
     where R═COC n H 2n+1  and/or R═COR′,
         wherein R′ is a branched alkyl radical or a branched or unbranched alkenyl radical and C n H 2n+1  is an aliphatic, saturated linear alkyl radical.       

     n is preferably an integer from 6-24 and examples of C n H 2n+1  are therefore n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, n-dodecyl, n-tridecyl, n-tetradecyl, n-hexadecyl or n-octadecyl. More preferably n =8 to 18, particularly preferably 10 to 16, very particularly preferably 12 (diglycerol monolaurate isomer having a molecular weight of 348 g/mol, which is particularly preferred as the main product in a mixture). It is preferable in accordance with the invention when the abovementioned ester moieties are present also in the case of the other isomers of diglycerol. 
     A mixture of various diglycerol esters may therefore also be concerned. 
     Preferably employed diglycerol esters have an HLB value of at least 6, particularly preferably 6 to 12, the HLB value being defined as the “hydrophilic-lipophilic balance”, calculated as follows according to the Griffin method: 
       HLB=20×(1 −M   lipophilic   /M ),
 
     wherein M lipophilic  is the molar mass of the lipophilic proportion of the diglycerol ester and M is the molar mass of the &amp;glycerol ester. 
     The amount of diglycerol ester is 0.05 to 3.0 wt %, preferably 0,10 to 2.0 wt %, particularly preferably 0.15 to 1.50 wt % and very particularly preferably 0.20 to 1.0 wt %. 
     Component C 
     The present invention further provides compositions comprising components A and B and optionally as component C at least one added substance preferably selected from the group of the added substances customary for these thermoplastics, such as fillers, carbon black, UV stabilizers, IR absorbers, thermal stabilizers, antistats and pigments, colorants in the customary amounts; it is optionally possible to improve demolding characteristics, flow characteristics and/or flame retardancy by adding external demolding agents, flow agents and/or flame retardants such as sulfonate salts, PTFE polymers/PTFE copolymers, brominated oligocarbonates, or oligophosphates and phosphazenes (e.g. alkyl and aryl phosphites, phosphates, phosphanes, low molecular weight carboxylic esters, halogen compounds, salts, chalk, talc, thermally or electrically conductive carbon blacks or graphites, quartz/quartz flour, glass and carbon fibers, pigments or else additives for reduction of the coefficient of linear thermal expansion (CLTE) and combination thereof. Such compounds are described for example in WO 99/55772, p. 15-25, and in “Plastics Additives”, R. Gächter and H. Müller, Hanser Publishers 1983). 
     If inorganic added substances, for example one or more fillers, are present in the composition, the total amount of organic and inorganic added substances may be up to 30 wt % (based on the overall composition). 
     The composition generally comprises 0 to 5.0 wt %, preferably 0 to 2.50 wt %, particularly preferably 0 to 1.60 wt %, very particularly preferably 0.03 to 1.50 wt %, especially particularly preferably 0.02 to 1.0 wt % (based on the overall composition), of organic added substances. 
     The demolding agents optionally added to the compositions according to the invention are preferably selected from the group consisting of pentaerythritol tetrastearate, glycerol monostearate and long-chain fatty acid esters, for example stearyl stearate and propanediol stearate, and mixtures thereof. The demolding agents are preferably used in amounts of 0.05 vit % to 2.00 wt %, preferably in amounts of 0.1 wt % to 1.0 wt %, particularly preferably in amounts of 0.15 wt % to 0.60 wt % and very particularly preferably in amounts of 0.20 wt % to 0.50 wt % based on the total weight of components A, B and C. 
     Suitable added substances are described for example in “Additives for Plastics Handbook, John Murphy, Elsevier, Oxford 1999”, in “Plastics Additives Handbook, Hans Zweifel, Hanser, Munich 2001”. 
     Suitable antioxidants/thermal stabilizers are for example: 
     alkylated monophenols, alkylthiomethylphenols, hydroquinones and alkylated hydroquinones, tocopherols, hydroxylated thiodiphenyl ethers, alkylidenebisphenols, O—, N— and S-benzyl compounds, hydroxybenzylated malonates, aromatic hydroxybenzyl compounds, triazine compounds, acylaminophenols, esters of β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid, esters of β-(5-tert-butyl-4-hydroxy-3-methylphenyl)propionic acid, esters of β-(3,5-dicyclohexyl-4-hydroxy-phenyl)propionic acid, esters of 3,5-di-tert-butyl-4-hydroxyphenylacetic acid, amides of β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid, suitable thio synergists, secondary antioxidants, phosphites and phosphonites, benzofuranones and indolinones. 
     Preferentially suitable thermal stabilizers are tris(2,4-di-tert-butylphenyl) phosphite (Irgafos 168), tetrakis(2,4-di-tert-butylphenyl)-[1,1-biphenyl]-4,4′-diyl bisphosphonite, triisoctyl phosphate (TOF), octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate (Irganox 1076), bis(2,4-dicu 1 nylphenyl)pentaerythritol diphosphite (Doverphos S-9228), bis(2,6-di-tert-butyl-4-methylphenyl)-pentaerythritol diphosphite (ADK STAB PEP-36) and triphenylphosphine (TPP). Said thermal stabilizers are used alone or in admixture (e.g. Irganox B900 or Doverphos S-9228 with Irganox B900/Irganox 1076 or triphenylphosphine (TPP) with triisoctyl phosphate (TOF)). Thermal stabilizers are preferably used in amounts of 0.005 wt % to 2.00 wt %, preferably in amounts of 0.01 wt % to 1.0 wt %, particularly preferably in amounts of 0.015 wt % to 0.60 wt % and very particularly preferably in amounts of 0.02 wt % to 0.50 wt % based on the total weight of components A, B and C. 
     Suitable complexing agents for heavy metals and neutralization of traces of alkalis are o/m-phosphoric acids, fully or partly esterified phosphates or phosphites. 
     Suitable light stabilizers (UV absorbers) are 2-(T-hydroxyphenyl)benzotriazoles, 2-hydroxybenzophenones, esters of substituted and unsubstituted benzoic acids, acrylates, sterically hindered amines, oxamides and 2-(hydroxyphenyl)-1,3,5-triazines/substituted hydroxyalkoxyphenyl, 1,3,5-triazoles, preference being given to substituted benzotriazoles, for example 2-(2′-hydroxy-5′-methyl-phenyl)benzotriazole, 2-(2′-hydroxy-3′,5′-di-t-butylphenyl)benzotriazole, 2-(2′-hydroxy-3′-tert.-butyl-5′-methylphenyl)-5-chlorobenzotriazole, 2-(2′-hydroxy-3′,5′-tert.-butylphenyl)-5-chloro-benzotriazole, 2-(2′-hydroxy-5′-tert.-octylphenyl)-benzotriazole, 2-(2′-hydroxy-3′,5′-di-tert.-amylphenyl)benzotriazole, 2-[2′-hydroxy-3′-(3″,4″,5″,6″-tetrahydrophthalimidoethyl)-5′-methylphenyl]-benzotriazole and 2,2′-methylenebis[4-(1,1,3,3-tetramethyl butyl)-6-(2H-benzotriazol-2-yl)phenol]. 
     Further suitable UV stabilizers are selected from the group comprising benzotriazoles (e.g. Tinuvins from BASF), triazine Tinuvin 1600 from BASF), benzophenones (Uvinuls from BASF), cyanoacrylates (Uvinuls from BASF), cinnamic esters and oxalanilides, and mixtures of these UV stabilizers. 
     The UV stabilizers are used in amounts of 0.01 wt % to 2.0 wt % based on the molding material, preferably in amounts of 0.05 wt % to 1.00 wt %, particularly preferably in amounts of 0.08 wt % to 0.5 wt % and very particularly preferably in amounts of 0.1 wt % to 0.4 wt % based on the overall composition. 
     Polypropylene glycols, alone or in combination with, for example, sulfones or sulfonamides as stabilizers, can be used to counteract damage by gamma rays. 
     These and other stabilizers can be used individually or in combination and can be added to the polymer in the forms mentioned. 
     Suitable flame-retardant additives are phosphate esters, i.e. triphenyl phosphate, resorcinol diphosphate, brominated compounds, such as brominated phosphoric esters, brominated oligocarbonates and polycarbonates, and preferably salts of fluorinated organic sulfonic acids. 
     Suitable impact modifiers are butadiene rubber with grafted-on styrene-acrylonitrile or methyl methacrylate, ethylene-propylene rubbers with grafted-on maleic anhydride, ethyl and butyl acrylate rubbers with grafted-on methyl methacrylate or styrene-acrylonitrile, interpenetrating siloxane and acrylate networks with grafted-on methyl methacrylate or styrene-acrylonitrile. 
     In addition, it is possible to add colorants such as organic dyes or pigments or inorganic pigments, carbon black, IR absorbers, individually, in a mixture or else in combination with stabilizers, glass fibers, (hollow) glass beads, inorganic fillers, for example titanium dioxide, talc, silicates or barium sulfate. 
     In a particularly preferred embodiment the composition according to the invention comprises at least one added substance selected from the group consisting of thermal stabilizers, demolding agents and UV absorbers, preferably in a total amount of 0.2 wt % to 2.0 wt % based on the total amount of components A, B and C. Particular preference is given to thermal stabilizers. 
     In a preferred embodiment the composition according to the invention comprises at least one inorganic filler as an added substance. 
     In a further preferred embodiment the composition according to the invention comprises 0.002 to 0.2 wt % of thermal stabilizer, 0.01 wt % to 1.00 wt % of UV stabilizer and 0.05 wt % to 2.00 wt % of demolding agent. 
     The copolycarbonate compositions according to the invention are produced in customary machines, for example inultishaft extruders, by compounding optionally with addition of additives and other added materials at temperatures between 280° C. and 360° C. 
     The copolycarbonate compositions according to the invention can be processed in a customary manner in standard machines, for example in extruders or injection molding machines, to give any shaped articles/moldings, to give films or sheets or bottles. 
     The copolycarbonate compositions according to the invention, optionally in a blend with other thermoplastics and/or customary additives, can be used to give any desired shaped articles/extrudates, wherever already known polycarbonates, polyestercarbonates and polyesters are used:
     1. Safety glazing which, as is well known, is required in many regions of buildings, vehicles and aircraft, and as shields of helmets.   2. Production of films and film laminates.   

     3. Automobile headlamps, bezels, indicators, reflectors.
     4. As translucent plastics having a content of glass fibers for lighting purposes. As translucent plastics having a content of barium sulfate, titanium dioxide and/or zirconium oxide or high-reflectance opaque compositions and components produced therefrom.   5. For production of precision injection moldings, for example lenses, collimators, lens holders, light guide elements and LED applications.   6. As electrical insulators for electrical conductors and for plug housings and plug connectors.   7. Housings for electrical appliances.   8. Protective glasses, eyepieces.   9. For medical applications, medical devices, for example oxygenators, dialyzers (hollow fiber dialyzers), 3-way taps, hose connectors, blood filters, injection systems, inhalers, ampoules.   10. Extruded shaped articles such as sheets and films.   11. LED applications (sockets, reflectors, heat sinks).   12. As a feedstock for compounds or as a blend partner or component in blend compositions and components produced therefrom.   

     This application likewise provides the compounds, blends, shaped articles, extrudates, films and film laminates made from the copolycarbonate compositions according to the invention, and likewise moldings, extrudates and films comprising coextrusion layers made from the copolycarbonate compositions according o the invention. 
     It is a particular feature of the compositions according to the invention that they exhibit exceptional mechanical, rheological and optical properties on account of their content of diglycerol ester. 
     The present invention accordingly also provides for the use of one or more of the diglycerol esters described hereinabove for improving the breaking elongation and/or reducing the yellowness index of compositions comprising a copolycarbonate or a blend of the copolycarbonate and a further homo- or copolycarbonate (component A) and optionally one or more added substances (component C). 
     The embodiments described hereinabove for the composition according to the invention also apply - where applicable - to the use according to the invention. 
     The examples which follow are intended to illustrate the invention without, however, limiting said invention. 
    
    
     EXAMPLES 
     Raw materials used:
     Component A is a blend of PC1 and PC2 (examples 1-3), copolycarbonate PC3 or PC4 (examples 4 to 9) or one of copolycarbonates PCS to PC11 (see table 7, examples 10-30).   PC 1 is a commercially available copolycarbonate based on bisphenol A and bisphenol TMC having an MVR of 18 cm 3 /10 min (330° C./2.16 kg) and a softening temperature (VST/B 120) of 183° C. (Apec 1895 from Bayer MaterialScience AG).   PC 2 is a polycarbonate powder based on bisphenol A having an MVR of 6 cm 3 /10 min (300° C./1.2 kg).). It is used to improve incorporation (metering) of component B.   PC 3 Lexan XHT2141; high heat copolycarbonate based on bisphenol A and the bisphenol of formula (Ib′) where R 3 =phenyl from Sabic Innovative Plastics having an MVR of 43 cm 3 /10 min (330° C., 2.16 kg)   PC 4 Lexan XHT4143; UV stabilized high heat copolycarbonate based on bisphenol A and the bisphenol of formula (Ib′) where R 3 =phenyl from Sabic Innovative Plastics   component B Poem. DL-100 (diglycerol monol.aurate, HLB=9) from Riken Vitamin.   component C triisooctyl phosphate (TOF) from Lanxess AG.   

     Syntheis of the Bisphenol of Formula (1b′) where R 3 =methyl: 
     
       
         
         
             
             
         
       
     
     A flange reactor is initially charged with a solution of 2 kg (20.2 mol) of N-methylpyrrolidone (NMP) and 1273.3 g (4 mol) of phenolphtalein. 2 liters of water and then 18 mol of a 40% aqueous methylamine solution are added with stirring. The reaction solution turns violet upon addition of the methylamine. The mixture is then stirred for a further 8 hours at 82° C. utilizing a. dry ice cooler. This causes the coloring of the reaction batch to change to dark yellowish. Once the reaction has ended the reaction batch is precipitated by means of a dropping funnel with stirring into a reservoir of water acidified with hydrochloric acid, 
     The precipitated white reaction product is slurried with 2 liters of water and then suctioned off using a G3 frit. The crude product obtained is redissolved in 3.5 liters of a dilute sodium hydroxide solution (16 mol) and in turn precipitated in a reservoir of water acidified with hydrochloric acid. The reprecipitated crude product is repeatedly slurried with 2 liters of water and then suctioned off each time. This washing procedure is repeated until the conductivity of the washing water is less than 15 μS. 
     The thus obtained product is dried to constant mass in a vacuum drying cabinet at 90° C. 
     After 4-fold performance of the experiment the following yields were obtained in each case: 
     1a) 950 g of a white solid 
     1b) 890 g of a white solid. 
     1c) 1120 g of a white solid 
     1d) 1050 g of a white solid 
     (melting point 264° C.) 
     Characterization of the obtained bisphenols was effected by  1 H-NMR spectroscopy. 
     Synthesis of Copolycarbonate Based on a Bisphenol of Formula (1b′) where R 3 =methyl and Bisphenol A: 
     To a nitrogen-inertized solution of 532.01 g (1.6055 mol) of bisphenol. A (BPA), 2601.36 g (11.39 mol) of bisphenol from example 1, 93.74 g (0.624 mol, 4.8 mol % based on diphenols) of p-tert.-butylphenol (BUP) as chain terminator and 1196 g (29.9 mol) of sodium hydroxide in 25.9 liters of water are added 11.79 liters of methylene chloride and 14.1 liters of chlorobenzene. At a pH of 12.5 13.5 and 20° C., 2.057 kg (20.8 mol) of phosgene are introduced. In order to prevent the pH from falling below 12.5, 30% sodium hydroxide solution was added during the phosgenation. Once phosgenation is complete and after purging with nitrogen the mixture is stirred for a further 30 minutes, 14.7 g (0.13 mol, 1 mol % based on diphenols) of N-ethylpiperidine are then added as catalyst and the mixture is stirred for a further 1 hour. After removal of the aqueous phase and acidification with phosphoric acid the organic phase is washed several times with water using a separator until salt-free. The organic phase is separated off and subjected to a solvent exchange in which methylene chloride is replaced with chlorobenzene. The concentrated copolycarbonate solution in chlorobenzene is then freed of solvent using a vented extruder. The obtained polycarbonate melt extrudates are cooled in a water bath, drawn off and finally pelletized. Transparent polycarbonate pellets are obtained. 
     Synthesis of Copolycarbonates PC5 to PC11 
     Copolycarbonates PC5 to PC11 were produced as per the preceding procedure for producing copolycarbonate based on a bisphenol of formula (1b′) where R 3 =methyl and bisphenol A (see table 7 for stoichiometry). 
     Synthesis of the Copolycarbonate Compositions of Examples 1-3 
     The copolycarbonate compositions of examples 1-3 based on raw materials PC1 and PC2 and also component B and component C are mixed according to the formulations reported in table 1 in a twin-screw extruder at 300° C. The thus-obtained polymer compositions are pelletized and are ready for polymer physical characterizations. 
     Synthesis of the Copolycarbonate Compositions of Examples 4-30 
     The polycarbonate compositions of examples 4 to 30 are produced in a DSM Miniextruder based on the raw materials stated. The melt temperature was 330° C. The thus-obtained polymer compositions are pelletized and are ready for polymer physical characterizations. 
     Characterization of the Molding Materials According to the Invention (Test Methods): 
     Characterization of the molding materials according to the invention (test methods): Melt volume flow rate (MVR) was determined in accordance with ISO 1133 (at a test temperature of 330° C., mass 2.16 kg) using a Zwick 4106 instrument from Roell. 
     Vicat softening temperature VST/B120 was determined as a measure of heat distortion resistance in accordance with ISO 306 on test specimens measuring 80 mm×10 mm×4 mm with a 50 N ram loading and a heating rate of 50° C./h or of 120° C./h with a Coesfeld Eco 2920 instrument from Coesfeld Materialtest. 
     The yellowness index (Y.I.) was determined as per ASTM E 313 (observer: 10°/light type: D65) on sample plates having a sheet thickness of 4 mm. 
     Charpy impact resistance was measured at room temperature according to ISO 7391/179eU on single side gate injection molded test bars measuring 80 mm×10 mm×3 mm. 
     Charpy notched impact resistance was measured at room temperature according to ISO 7391/179eA on single side gate injection molded test bars measuring 80 mm×10 mm×3 mm. 
     The rheological tests were performed with an MCR 301 cone-and-plate rheometer with a CP 25 measuring cone and the conditions below: 
     Test method: Oscillation—cone and plate 
     Frequency: 75 to 0.08 Hz =angular frequency of 471 to 0.5 [l/s] 
     Deformation: 10%-20 measurement points 
     Temperatures: 300° C., 280° C. and 260° C.,+−0.3° C. 
     Modulus of elasticity was measured according to ISO 527 on single side gate injection molded shoulder bars having a core measuring 80×10×4 mm 
     
       
         
           
               
             
               
                 TABLE 1 
               
             
            
               
                   
               
               
                 Copolycarbonate compositions 
               
            
           
           
               
               
            
               
                   
                 Example 
               
            
           
           
               
               
               
               
            
               
                   
                 1 
                   
                   
               
               
                   
                 (comparative) 
                 2 
                 3 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 PC-1 
                 % 
                 93.00 
                 93.00 
                 93.00 
               
               
                   
                 PC-2 
                 % 
                 7.00 
                 6.79 
                 6.59 
               
               
                   
                 Component B 
                 % 
                 — 
                 0.20 
                 0.40 
               
               
                   
                 Component C 
                 % 
                 — 
                 0.01 
                 0.01 
               
               
                   
                   
               
               
                   
                 The % values are wt % values in each case. 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 2 
               
             
            
               
                   
               
               
                 Rheological and thermal properties of the compositions 
               
            
           
           
               
               
            
               
                   
                 Example 
               
            
           
           
               
               
               
               
            
               
                   
                 1 
                   
                   
               
               
                   
                 (comparative) 
                 2 
                 3 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
            
               
                 MVR 330° C./2.16 kg 
                 cm 3 /10 min 
                 16.0 
                 19.7 
                 25.6 
               
               
                 Melt visc. at 300° C. 
               
               
                 eta 50 
                 Pa · s 
                 1682 
                 1511 
                 1341 
               
               
                 eta 100 
                 Pa · s 
                 1553 
                 1416 
                 1249 
               
               
                 eta 200 
                 Pa · s 
                 1346 
                 1244 
                 1118 
               
               
                 eta 500 
                 Pa · s 
                 928 
                 873 
                 791 
               
               
                 eta 1000 
                 Pa · s 
                 628 
                 594 
                 542 
               
               
                 eta 1500 
                 Pa · s 
                 492 
                 462 
                 421 
               
               
                 eta 5000 
                 Pa · s 
                 218 
                 205 
                 189 
               
               
                 Melt visc. at 320° C. 
               
               
                 eta 50 
                 Pa · s 
                 802 
                 719 
                 684 
               
               
                 eta 100 
                 Pa · s 
                 764 
                 682 
                 639 
               
               
                 eta 200 
                 Pa · s 
                 698 
                 628 
                 588 
               
               
                 eta 500 
                 Pa · s 
                 555 
                 506 
                 478 
               
               
                 eta 1000 
                 Pa · s 
                 410 
                 379 
                 361 
               
               
                 eta 1500 
                 Pa · s 
                 328 
                 306 
                 292 
               
               
                 eta 5000 
                 Pa · s 
                 149 
                 142 
                 137 
               
               
                 Melt visc. at 330° C. 
               
               
                 eta 50 
                 Pa · s 
                 556 
                 521 
                 439 
               
               
                 eta 100 
                 Pa · s 
                 541 
                 505 
                 423 
               
               
                 eta 200 
                 Pa · s 
                 508 
                 472 
                 403 
               
               
                 eta 500 
                 Pa · s 
                 425 
                 397 
                 344 
               
               
                 eta 1000 
                 Pa · s 
                 330 
                 311 
                 276 
               
               
                 eta 1500 
                 Pa · s 
                 271 
                 257 
                 236 
               
               
                 eta 5000 
                 Pa · s 
                 129 
                 123 
                 117 
               
               
                 Melt visc. at 340° C. 
               
               
                 eta 50 
                 Pa · s 
                 398 
                 353 
                 310 
               
               
                 eta 100 
                 Pa · s 
                 383 
                 342 
                 305 
               
               
                 eta 200 
                 Pa · s 
                 367 
                 331 
                 288 
               
               
                 eta 500 
                 Pa · s 
                 321 
                 293 
                 255 
               
               
                 eta 1000 
                 Pa · s 
                 263 
                 241 
                 215 
               
               
                 eta 1500 
                 Pa · s 
                 224 
                 206 
                 186 
               
               
                 eta 5000 
                 Pa · s 
                 113 
                 106 
                 99 
               
               
                 Melt visc. at 360° C. 
               
               
                 eta 50 
                 Pa · s 
                 216 
                 175 
                 151 
               
               
                 eta 100 
                 Pa · s 
                 214 
                 174 
                 149 
               
               
                 eta 200 
                 Pa · s 
                 211 
                 171 
                 144 
               
               
                 eta 500 
                 Pa · s 
                 194 
                 159 
                 135 
               
               
                 eta 1000 
                 Pa · s 
                 171 
                 142 
                 123 
               
               
                 eta 1500 
                 Pa · s 
                 151 
                 129 
                 110 
               
               
                 eta 5000 
                 Pa · s 
                 85 
                 77 
                 74 
               
               
                 Vicat VSTB 120 
                 ° C. 
                 179.3 
                 178.2 
                 176.0 
               
               
                   
               
            
           
         
       
     
     For virtually identical Vicat temperatures the inventive examples 2 and 3 exhibit significantly higher MVR values which indicate an improved flowability of the melts. 
     The improved flowabilities are likewise demonstrable for all shear rates over the entire industrial processing range from 300° C. to 360° C. 
     
       
         
           
               
             
               
                 TABLE 3 
               
             
            
               
                   
               
               
                 Optical properties of the copolycarbonate compositions 
               
            
           
           
               
               
            
               
                   
                 Examples 
               
            
           
           
               
               
               
               
               
               
            
               
                   
                   
                   
                 1 
                   
                   
               
               
                   
                 optical data 
                   
                 (comparative) 
                 2 
                 3 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
               
            
               
                   
                 330° C. 
                   
                   
                   
                   
               
               
                   
                 Transmission 
                 % 
                 86.97 
                 87.21 
                 87.26 
               
               
                   
                 Haze 
                 % 
                 0.49 
                 0.64 
                 0.53 
               
               
                   
                 Y.I. 
                   
                 1.82 
                 1.41 
                 1.42 
               
               
                   
                 360° C. 
               
               
                   
                 Transmission 
                 % 
                 86.97 
                 87.2 
                 87.2 
               
               
                   
                 Haze 
                 % 
                 0.34 
                 0.58 
                 0.57 
               
               
                   
                 Y.I. 
                   
                 2.05 
                 1.45 
                 1.57 
               
               
                   
                   
               
            
           
         
       
     
     In all cases the inventive examples 2 and 3 show a higher transmission coupled with a lower yellowness index (Y.I.) than the comparative example 1. 
     
       
         
           
               
             
               
                 TABLE 4 
               
             
            
               
                   
               
               
                 Mechanical properties of the copolycarbonate compositions 
               
            
           
           
               
               
            
               
                   
                 Examples 
               
            
           
           
               
               
               
               
               
            
               
                   
                   
                 1 
                   
                   
               
               
                 mechanical properties 
                   
                 (comparative) 
                 2 
                 3 
               
               
                   
               
               
                 Impact resistance (Charpy, 
                 kJ/m 2   
                 n.b. 
                 n.b. 
                 9xn.b. 
               
               
                 ISO 7391/179eU 
                   
                   
                   
                 1x113 s 
               
               
                 Notched impact resistance 
                 kJ/m 2   
                 9 s 
                 7 s 
                 7 s 
               
               
                 (Charpy, ISO7391/179eA 
               
               
                 Tensile tests (ISO 527) 
               
               
                 Yield stress 
                 N/mm 2   
                 73 
                 74 
                 75 
               
               
                 Elongation 
                 % 
                 6.6 
                 6.5 
                 6.3 
               
               
                 Tear strength 
                 N/mm 2   
                 69 
                 70 
                 74 
               
               
                 Breaking elongation 
                 % 
                 111 
                 118 
                 130 
               
               
                 Modulus of elasticity 
                 N/mm 2   
                 2415 
                 2438 
                 2484 
               
               
                   
               
               
                 n.b.: test rod not broken 
               
            
           
         
       
     
     For virtually identical behavior for the impact resistances the inventive examples 2 and 3 exhibit mechanical properties that are consistently improved over those of comparative example 1. 
     
       
         
           
               
             
               
                 TABLE 5 
               
             
            
               
                   
               
               
                 (Composition of the compounds of examples 4-9 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                   
                   
                 4 
                   
                   
                 7 
                   
                   
               
               
                   
                   
                 (compar- 
                   
                   
                 (compar- 
                   
                   
               
               
                   
                   
                 ative) 
                 5 
                 6 
                 ative) 
                 8 
                 9 
               
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 PC-3 
                 % 
                 100 
                 99.8 
                 99.6 
                 — 
                 — 
                 — 
               
               
                 PC-4 
                 % 
                 — 
                 — 
                 — 
                 100 
                 99.8 
                 99.6 
               
               
                 POEM  
                 % 
                 — 
                 0.2 
                 0 
                 — 
                 0.2 
                 0.4 
               
               
                 DL-100 
                   
                   
                   
                   
                   
                   
                   
               
               
                 Tg 
                 [° C.] 
                 164.2 
                 162.4 
                 160.7 
                 181.7 
                 182.1 
                 179.3 
               
               
                   
               
               
                 The % values are wt % values in each case. 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 6 
               
             
            
               
                   
               
               
                 (Melt viscosity at angular frequency of 471 to 0.503 [Hz]: 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                   
                   
                 4 
                   
                   
                 7 
                   
                   
               
               
                   
                   
                 (compar- 
                   
                   
                 (compar- 
                   
                   
               
               
                 Example: 
                   
                 ative) 
                 5 
                 6 
                 ative) 
                 8 
                 9 
               
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Cone/plate  
                   
                   
                   
                   
                   
                   
                   
               
               
                 rheology 
                   
                   
                   
                   
                   
                   
                   
               
               
                 Cone/plate 
                   
                   
                   
                   
                   
                   
                   
               
               
                 Melt visc. 
                   
                   
                   
                   
                   
                   
                   
               
               
                 at  
                   
                   
                   
                   
                   
                   
                   
               
               
                 260° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 1000 
                 796 
                 705 
                 1240 
                 1150 
                 975 
               
               
                 329 
                 Pa · s 
                 1200 
                 980 
                 823 
                 1680 
                 1550 
                 1220 
               
               
                 229 
                 Pa · s 
                 1420 
                 1150 
                 933 
                 2140 
                 1980 
                 1450 
               
               
                 160 
                 Pa · s 
                 1640 
                 1330 
                 1040  
                 2710 
                 2530 
                 1690 
               
               
                 112 
                 Pa · s 
                 1860 
                 1490 
                 1130  
                 3350 
                 3100 
                 1910 
               
               
                 77.8 
                 Pa · s 
                 2080 
                 1640 
                 1200  
                 4040 
                 3700 
                 2120 
               
               
                 54.3 
                 Pa · s 
                 2280 
                 1770 
                 1270  
                 4790 
                 4320 
                 2310 
               
               
                 37.9 
                 Pa · s 
                 2460 
                 1880 
                 1320  
                 5530 
                 4920 
                 2460 
               
               
                 26.4 
                 Pa · s 
                 2620 
                 1960 
                 1360  
                 6250 
                 5460 
                 2590 
               
               
                 18.4 
                 Pa · s 
                 2750 
                 2030 
                 1400  
                 6910 
                 5950 
                 2700 
               
               
                 12.9 
                 Pa · s 
                 2860 
                 2080 
                 1410  
                 7520 
                 6380 
                 2780 
               
               
                 8.97 
                 Pa · s 
                 2930 
                 2120 
                 1430  
                 8050 
                 6740 
                 2840 
               
               
                 6.25 
                 Pa · s 
                 2990 
                 2150 
                 1440  
                 8490 
                 7030 
                 2880 
               
               
                 4.36 
                 Pa · s 
                 3030 
                 2170 
                 1450  
                 8850 
                 7250 
                 2910 
               
               
                 3.04 
                 Pa · s 
                 3060 
                 2180 
                 1450  
                 9130 
                 7410 
                 2930 
               
               
                 2.12 
                 Pa · s 
                 3080 
                 2190 
                 1450  
                 9340 
                 7530 
                 2940 
               
               
                 1.48 
                 Pa · s 
                 3100 
                 2190 
                 1450  
                 9500 
                 7610 
                 2940 
               
               
                 1.03 
                 Pa · s 
                 3110 
                 2190 
                 1450  
                 9610 
                 7670 
                 2940 
               
               
                 0.721 
                 Pa · s 
                 3110 
                 2200 
                 1450  
                 9670 
                 7680 
                 2930 
               
               
                 0.503 
                 Pa · s 
                 3110 
                 2190 
                 1450  
                 9700 
                 7670 
                 2900 
               
               
                 Melt  
                   
                   
                   
                   
                   
                   
                   
               
               
                 visc. at  
                   
                   
                   
                   
                   
                   
                   
               
               
                 280° C. 
                   
                   
                   
                   
                   
                   
                   
               
               
                 [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 577 
                 494 
                 353 
                 932 
                 814 
                 486 
               
               
                 329 
                 Pa · s 
                 678 
                 557 
                 383 
                 1130 
                 960 
                 540 
               
               
                 229 
                 Pa · s 
                 770 
                 613 
                 409 
                 1330 
                 1110 
                 590 
               
               
                 160 
                 Pa · s 
                 854 
                 662 
                 431 
                 1540 
                 1250 
                 636 
               
               
                 112 
                 Pa · s 
                 928 
                 705 
                 449 
                 1750 
                 1400 
                 675 
               
               
                 77.8 
                 Pa · s 
                 990 
                 743 
                 463 
                 1950 
                 1530 
                 707 
               
               
                 54.3 
                 Pa · s 
                 1040 
                 772 
                 472 
                 2140 
                 1650 
                 731 
               
               
                 37.9 
                 Pa · s 
                 1080 
                 794 
                 479 
                 2310 
                 1750 
                 749 
               
               
                 26.4 
                 Pa · s 
                 1110 
                 810 
                 483 
                 2450 
                 1830 
                 762 
               
               
                 18.4 
                 Pa · s 
                 1140 
                 821 
                 486 
                 2570 
                 1890 
                 771 
               
               
                 12.9 
                 Pa · s 
                 1150 
                 829 
                 487 
                 2670 
                 1940 
                 776 
               
               
                 8.97 
                 Pa · s 
                 1170 
                 834 
                 487 
                 2730 
                 1970 
                 779 
               
               
                 6.25 
                 Pa · s 
                 1170 
                 837 
                 487 
                 2790 
                 2000 
                 780 
               
               
                 4.36 
                 Pa · s 
                 1180 
                 838 
                 486 
                 2820 
                 2010 
                 780 
               
               
                 3.04 
                 Pa · s 
                 1180 
                 840 
                 486 
                 2850 
                 2020 
                 779 
               
               
                 2.12 
                 Pa · s 
                 1180 
                 840 
                 484 
                 2860 
                 2020 
                 777 
               
               
                 1.48 
                 Pa · s 
                 1190 
                 841 
                 483 
                 2870 
                 2030 
                 775 
               
               
                 1.03 
                 Pa · s 
                 1190 
                 842 
                 482 
                 2870 
                 2020 
                 772 
               
               
                 0.721 
                 Pa · s 
                 1190 
                 842 
                 481 
                 2870 
                 2020 
                 769 
               
               
                 0.503 
                 Pa · s 
                 1190 
                 840 
                 479 
                 2870 
                 2010 
                 764 
               
               
                 Melt  
                   
                   
                   
                   
                   
                   
                   
               
               
                 visc. at  
                   
                   
                   
                   
                   
                   
                   
               
               
                 300° C.  
                   
                   
                   
                   
                   
                   
                   
               
               
                 [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 347 
                 258 
                 171 
                 598 
                 481 
                 224 
               
               
                 329 
                 Pa · s 
                 378 
                 275 
                 179 
                 689 
                 537 
                 240 
               
               
                 229 
                 Pa · s 
                 406 
                 291 
                 186 
                 773 
                 590 
                 255 
               
               
                 160 
                 Pa · s 
                 430 
                 304 
                 192 
                 848 
                 637 
                 266 
               
               
                 112 
                 Pa · s 
                 450 
                 314 
                 196 
                 915 
                 679 
                 275 
               
               
                 77.8 
                 Pa · s 
                 465 
                 321 
                 199 
                 972 
                 713 
                 282 
               
               
                 54.3 
                 Pa · s 
                 477 
                 327 
                 201 
                 1020 
                 740 
                 287 
               
               
                 37.9 
                 Pa · s 
                 486 
                 331 
                 202 
                 1050 
                 760 
                 291 
               
               
                 26.4 
                 Pa · s 
                 492 
                 333 
                 202 
                 1080 
                 775 
                 293 
               
               
                 18.4 
                 Pa · s 
                 497 
                 334 
                 202 
                 1100 
                 784 
                 294 
               
               
                 12.9 
                 Pa · s 
                 499 
                 335 
                 202 
                 1110 
                 789 
                 295 
               
               
                 8.97 
                 Pa · s 
                 501 
                 335 
                 202 
                 1120 
                 792 
                 295 
               
               
                 6.25 
                 Pa · s 
                 503 
                 336 
                 202 
                 1120 
                 793 
                 295 
               
               
                 4.36 
                 Pa · s 
                 504 
                 336 
                 202 
                 1130 
                 794 
                 295 
               
               
                 3.04 
                 Pa · s 
                 505 
                 336 
                 202 
                 1130 
                 794 
                 295 
               
               
                 2.12 
                 Pa · s 
                 505 
                 336 
                 202 
                 1130 
                 793 
                 295 
               
               
                 1.48 
                 Pa · s 
                 506 
                 337 
                 202 
                 1130 
                 792 
                 296 
               
               
                 1.03 
                 Pa · s 
                 508 
                 338 
                 203 
                 1130 
                 792 
                 296 
               
               
                 0.721 
                 Pa · s 
                 509 
                 340 
                 204 
                 1120 
                 791 
                 297 
               
               
                 0.503 
                 Pa · s 
                 510 
                 341 
                 205 
                 1120 
                 789 
                 299 
               
               
                   
               
            
           
         
       
     
     Table 6 shows that compared to the inventive examples 5, 6 and 9 the comparative examples 4 and 7 which do not comprise the flow assistant exhibit higher melt viscosities at the three measurement temperatures and thus have poorer flowability. 
     
       
         
           
               
             
               
                 TABLE 7 
               
             
            
               
                   
               
               
                 Composition of the copolycarbonates PC-5 to PC-11 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Co- 
                   
                   
                   
                   
                   
                   
                   
               
               
                 poly- 
                   
                   
                   
                   
                   
                   
                   
               
               
                 carbonate 
                   
                   
                   
                   
                   
                   
                   
               
               
                 no.  
                   
                   
                   
                   
                   
                   
                   
               
               
                 based 
                   
                   
                   
                   
                   
                   
                   
               
               
                 on: 
                 PC-5  
                 PC-6 
                 PC-7 
                 PC-8 
                 PC-9 
                 PC-10 
                 PC-11 
               
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Bisphenol  
                 77.93 
                 78.5  
                 77.5 
                 76.5 
                 80 
                 80 
                 80 
               
               
                 according  
                 70.9  
                 71.6  
                 70.4 
                 69.2 
                 73.4 
                 73.4 
                 73.4 
               
               
                 to 
                   
                   
                   
                   
                   
                   
                   
               
               
                 formula  
                   
                   
                   
                   
                   
                   
                   
               
               
                 (lb’) 
                   
                   
                   
                   
                   
                   
                   
               
               
                 where  
                   
                   
                   
                   
                   
                   
                   
               
               
                 R 3  =  
                   
                   
                   
                   
                   
                   
                   
               
               
                 methyl 
                   
                   
                   
                   
                   
                   
                   
               
               
                 [mol %]  
                   
                   
                   
                   
                   
                   
                   
               
               
                 [wt %] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 Bisphenol  
                 22.07 
                 21.5  
                 22.5 
                 23.5 
                 20 
                 20 
                 20 
               
               
                 A (BPA)  
                 29.1 
                 28.4  
                 29.6 
                 30.8 
                 26.6 
                 26.6 
                 26.6 
               
               
                 [mol %]  
                   
                   
                   
                   
                   
                   
                   
               
               
                 [wt %] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 Glass  
                 179.4  
                 179.6 
                 179.6 
                 182.3  
                 175.3 
                 176.1 
                 173.9  
               
               
                 transition 
                   
                   
                   
                   
                   
                   
                   
               
               
                 temper- 
                   
                   
                   
                   
                   
                   
                   
               
               
                 ature 
                   
                   
                   
                   
                   
                   
                   
               
               
                 Tg [° C.] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 η rel   
                 — 
                 1.234  
                 1.225 
                 1.237 
                 1.216 
                 1.228 
                 1.218 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 8 
               
             
            
               
                   
               
               
                 (Composition of the compounds of examples 10-30): 
               
            
           
           
               
               
               
               
               
               
               
               
               
               
            
               
                   
                   
                   
                   
                   
                   
                   
                   
                 POEM 
                   
               
               
                   
                   
                   
                   
                   
                   
                   
                   
                 DL- 
                 Tg 
               
               
                 Example 
                 PC-5% 
                 PC-6% 
                 PC-7% 
                 PC-8% 
                 PC-9% 
                 PC-10% 
                 PC-11% 
                 100% 
                 ° C. 
               
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
               
            
               
                 10 
                 100 
                   
                   
                   
                   
                   
                   
                   
                 179.4 
               
               
                 (comparative) 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 11 
                 99.8 
                   
                   
                   
                   
                   
                   
                 0.2 
                 178.7 
               
               
                 12 
                 99.6 
                   
                   
                   
                   
                   
                   
                 0.4 
                 172.4 
               
               
                 13 
                   
                 100 
                   
                   
                   
                   
                   
                   
                 179.6 
               
               
                 (comparative) 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 14 
                   
                 99.8 
                   
                   
                   
                   
                   
                 0.2 
                 175.1 
               
               
                 15 
                   
                 99.6 
                   
                   
                   
                   
                   
                 0.4 
                 168.6 
               
               
                 16 
                   
                   
                 100 
                   
                   
                   
                   
                   
                 179.6 
               
               
                 (comparative) 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 17 
                   
                   
                 99.8  
                   
                   
                   
                   
                 0.2 
                 177.3 
               
               
                 18 
                   
                   
                 99.6  
                   
                   
                   
                   
                 0.4 
                 169.5 
               
               
                 19 
                   
                   
                   
                 100 
                   
                   
                   
                   
                 182.3 
               
               
                 (comparative) 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 20 
                   
                   
                   
                 99.8 
                   
                   
                   
                 0.2 
                 179.3 
               
               
                 21 
                   
                   
                   
                 99.6 
                   
                   
                   
                 0.4 
                 171.9 
               
               
                 22 
                   
                   
                   
                   
                 100 
                   
                   
                   
                 175.3 
               
               
                 (comparative) 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 23 
                   
                   
                   
                   
                 99.8 
                   
                   
                 0.2 
                 175.2 
               
               
                 24 
                   
                   
                   
                   
                 99.6 
                   
                   
                 0.4 
                 171.3 
               
               
                 25 
                   
                   
                   
                   
                   
                 100 
                   
                   
                 176.1 
               
               
                 (comparative) 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 26 
                   
                   
                   
                   
                   
                 99.8 
                   
                 0.2 
                 171.5 
               
               
                 27 
                   
                   
                   
                   
                   
                 99.6  
                   
                 0.4 
                 168.6 
               
               
                 28 
                   
                   
                   
                   
                   
                   
                 100 
                   
                 173.9 
               
               
                 (comparative) 
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 29 
                   
                   
                   
                   
                   
                   
                 99.8 
                 0.2 
                 171.9 
               
               
                 30 
                   
                   
                   
                   
                   
                   
                 99.6 
                 0.4 
                 167.3 
               
               
                   
               
               
                 The % values are wt % values in each case. 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 9 
               
               
                   
               
               
                 (Melt viscosity at angular frequency of 471 to 0.503 [Hz] 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                   
                   
                 10 
                   
                   
                 13 
                   
                   
               
               
                   
                   
                 (compar- 
                   
                   
                 (compar- 
                   
                   
               
               
                 Example 
                   
                 ative) 
                 11 
                 12 
                 ative) 
                 14 
                 15 
               
               
                   
               
               
                 Cone/plate 
                   
                   
                   
                   
                   
                   
                   
               
               
                 rheology  
                   
                   
                   
                   
                   
                   
                   
               
               
                 Melt visc.  
                   
                   
                   
                   
                   
                   
                   
               
               
                 at 260° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 835 
                 938 
                 441 
                 441 
                 938 
                 356 
               
               
                 329 
                 Pa · s 
                 1120 
                 1210 
                 494 
                 494 
                 1100 
                 390 
               
               
                 229 
                 Pa · s 
                 1400 
                 1490 
                 548 
                 548 
                 1280 
                 423 
               
               
                 160 
                 Pa · s 
                 1720 
                 1820 
                 597 
                 597 
                 1480 
                 453 
               
               
                 112 
                 Pa · s 
                 2050 
                 2160 
                 641 
                 641 
                 1680 
                 479 
               
               
                 77.8 
                 Pa · s 
                 2360 
                 2460 
                 679 
                 679 
                 1870 
                 501 
               
               
                 54.3 
                 Pa · s 
                 2640 
                 2720 
                 712 
                 712 
                 2050 
                 520 
               
               
                 37.9 
                 Pa · s 
                 2910 
                 2970 
                 739 
                 739 
                 2210 
                 537 
               
               
                 26.4 
                 Pa · s 
                 3140 
                 3190 
                 763 
                 763 
                 2350 
                 555 
               
               
                 18.4 
                 Pa · s 
                 3350 
                 3390 
                 783 
                 783 
                 2470 
                 565 
               
               
                 12.9 
                 Pa · s 
                 3520 
                 3550 
                 802 
                 802 
                 2570 
                 578 
               
               
                 8.97 
                 Pa · s 
                 3660 
                 3690 
                 820 
                 820 
                 2650 
                 592 
               
               
                 6.25 
                 Pa · s 
                 3780 
                 3800 
                 839 
                 839 
                 2720 
                 607 
               
               
                 4.36 
                 Pa · s 
                 3870 
                 3890 
                 858 
                 858 
                 2770 
                 624 
               
               
                 3.04 
                 Pa · s 
                 3940 
                 3960 
                 879 
                 879 
                 2810 
                 642 
               
               
                 2.12 
                 Pa · s 
                 3980 
                 4000 
                 898 
                 898 
                 2840 
                 660 
               
               
                 1.48 
                 Pa · s 
                 4020 
                 4040 
                 918 
                 918 
                 2870 
                 680 
               
               
                 1.03 
                 Pa · s 
                 4050 
                 4080 
                 936 
                 936 
                 2900 
                 700 
               
               
                 0.721 
                 Pa · s 
                 4060 
                 4100 
                 955 
                 955 
                 2920 
                 720 
               
               
                 0.503 
                 Pa · s 
                 4070 
                 4110 
                 975 
                 975 
                 2950 
                 740 
               
               
                 Melt visc.  
                   
                   
                   
                   
                   
                   
                   
               
               
                 at 280° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 545 
                 612 
                 197 
                 679 
                 493 
                 155 
               
               
                 329 
                 Pa · s 
                 660 
                 701 
                 210 
                 772 
                 553 
                 163 
               
               
                 229 
                 Pa · s 
                 752 
                 788 
                 221 
                 865 
                 611 
                 170 
               
               
                 160 
                 Pa · s 
                 832 
                 869 
                 231 
                 952 
                 665 
                 176 
               
               
                 112 
                 Pa · s 
                 906 
                 943 
                 238 
                 1030 
                 713 
                 181 
               
               
                 77.8 
                 Pa · s 
                 973 
                 1010 
                 245 
                 1100 
                 756 
                 185 
               
               
                 54.3 
                 Pa · s 
                 1030 
                 1060 
                 250 
                 1160 
                 791 
                 189 
               
               
                 37.9 
                 Pa · s 
                 1080 
                 1110 
                 255 
                 1210 
                 820 
                 193 
               
               
                 26.4 
                 Pa · s 
                 1120 
                 1150 
                 259 
                 1250 
                 843 
                 197 
               
               
                 18.4 
                 Pa · s 
                 1150 
                 1180 
                 263  
                 1290 
                 861 
                 200 
               
               
                 12.9 
                 Pa · s 
                 1170 
                 1200 
                 267 
                 1310 
                 874 
                 204  
               
               
                 8.97 
                 Pa · s 
                 1190 
                 1220 
                 271 
                 1320 
                 884 
                 208 
               
               
                 6.25 
                 Pa · s 
                 1200 
                 1230 
                 275 
                 1330 
                 892 
                 212 
               
               
                 4.36 
                 Pa · s 
                 1210 
                 1240 
                 279 
                 1340 
                 899 
                 217 
               
               
                 3.04 
                 Pa · s 
                 1210 
                 1240 
                 284 
                 1350 
                 906 
                 222 
               
               
                 2.12 
                 Pa · s 
                 1220 
                 1250 
                 289 
                 1350 
                 912 
                 227 
               
               
                 1.48 
                 Pa · s 
                 1220 
                 1250 
                 296 
                 1350 
                 919 
                 233 
               
               
                 1.03 
                 Pa · s 
                 1220 
                 1250 
                 305 
                 1350 
                 929 
                 240 
               
               
                 0.721 
                 Pa · s 
                 1230 
                 1260 
                 316 
                 1350 
                 940 
                 248 
               
               
                 0.503 
                 Pa · s 
                 1230 
                 1260 
                 330 
                 1350 
                 954 
                 258 
               
               
                 Melt visc.  
                   
                   
                   
                   
                   
                   
                   
               
               
                 at 300° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 332 
                 341 
                 102 
                 376 
                 267 
                 74.6 
               
               
                 329 
                 Pa · s 
                 363 
                 370 
                 104 
                 409 
                 287 
                 76.4 
               
               
                 229 
                 Pa · s 
                 392 
                 396 
                 105 
                 439 
                 305 
                 77.8 
               
               
                 160 
                 Pa · s 
                 418 
                 419 
                 106 
                 465 
                 320 
                 79 
               
               
                 112 
                 Pa · s 
                 439 
                 438 
                 107 
                 486 
                 332 
                 80 
               
               
                 77.8 
                 Pa · s 
                 457 
                 453 
                 107 
                 503 
                 342 
                 80.8 
               
               
                 54.3 
                 Pa · s 
                 471 
                 465 
                 107 
                 516 
                 349 
                 81.7 
               
               
                 37.9 
                 Pa · s 
                 481 
                 474 
                 107 
                 526 
                 354 
                 82.5 
               
               
                 26.4 
                 Pa · s 
                 488 
                 480 
                 108 
                 533 
                 358 
                 83.7 
               
               
                 18.4 
                 Pa · s 
                 492 
                 485 
                 108 
                 538 
                 361 
                 84.2 
               
               
                 12.9 
                 Pa · s 
                 496 
                 488 
                 108 
                 541 
                 363 
                 85.2 
               
               
                 8.97 
                 Pa · s 
                 497 
                 490 
                 109 
                 542 
                 365 
                 86.3 
               
               
                 6.25 
                 Pa · s 
                 497 
                 492 
                 110 
                 543 
                 367 
                 87.8 
               
               
                 4.36 
                 Pa · s 
                 497 
                 494 
                 112 
                 544 
                 369 
                 89.4 
               
               
                 3.04 
                 Pa · s 
                 497 
                 495 
                 115 
                 546 
                 372 
                 91.6 
               
               
                 2.12 
                 Pa · s 
                 496 
                 496 
                 119 
                 545 
                 375 
                 94.2 
               
               
                 1.48 
                 Pa · s 
                 496 
                 497 
                 124 
                 546 
                 380 
                 97.6 
               
               
                 1.03 
                 Pa · s 
                 496 
                 499 
                 131 
                 545 
                 388 
                 102 
               
               
                 0.721 
                 Pa · s 
                 496 
                 502 
                 138 
                 545 
                 398 
                 107 
               
               
                 0.503 
                 Pa · s 
                 497 
                 504 
                 147 
                 544 
                 412 
                 113 
               
               
                   
               
               
                   
                   
                 16 
                   
                   
                 19 
                   
                   
               
               
                   
                   
                 (compar- 
                   
                   
                 (compar- 
                   
                   
               
               
                 Example 
                   
                 ative) 
                 17 
                 18 
                 ative) 
                 20 
                 21 
               
               
                   
               
               
                 Cone/plate 
                   
                   
                   
                   
                   
                   
                   
               
               
                 rheology  
                   
                   
                   
                   
                   
                   
                   
               
               
                 Melt visc. 
                   
                   
                   
                   
                   
                   
                   
               
               
                 at 260° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 1240 
                 946 
                 253 
                 1310 
                 969 
                 329 
               
               
                 329 
                 Pa · s 
                 1490 
                 1110 
                 269 
                 1610 
                 1150 
                 352 
               
               
                 229 
                 Pa · s 
                 1760 
                 1290 
                 282 
                 1950 
                 1340 
                 371 
               
               
                 160 
                 Pa · s 
                 2050 
                 1500 
                 292 
                 2310 
                 1570 
                 387 
               
               
                 112 
                 Pa · s 
                 2360 
                 1710 
                 300 
                 2710 
                 1830 
                 399 
               
               
                 77.8 
                 Pa · s 
                 2680 
                 1910 
                 305 
                 3130 
                 2110 
                 408 
               
               
                 54.3 
                 Pa · s 
                 2990 
                 2110 
                 309 
                 3550 
                 2360 
                 414 
               
               
                 37.9 
                 Pa · s 
                 3280 
                 2280 
                 311 
                 3960 
                 2600 
                 418 
               
               
                 26.4 
                 Pa · s 
                 3540 
                 2430 
                 314 
                 4340 
                 2810 
                 422 
               
               
                 18.4 
                 Pa · s 
                 3770 
                 2570 
                 315 
                 4680 
                 3000 
                 424 
               
               
                 12.9 
                 Pa · s 
                 3960 
                 2680 
                 315 
                 4980 
                 3160 
                 425 
               
               
                 8.97 
                 Pa · s 
                 4130 
                 2770 
                 316 
                 5240 
                 3290 
                 427 
               
               
                 6.25 
                 Pa · s 
                 4260 
                 2850 
                 317 
                 5460 
                 3410 
                 429 
               
               
                 4.36 
                 Pa · s 
                 4360 
                 2910 
                 317 
                 5630 
                 3500 
                 430 
               
               
                 3.04 
                 Pa · s 
                 4450 
                 2970 
                 319 
                 5760 
                 3580 
                 431 
               
               
                 2.12 
                 Pa · s 
                 4500 
                 3010 
                 320 
                 5870 
                 3650 
                 431 
               
               
                 1.48 
                 Pa · s 
                 4550 
                 3060 
                 323 
                 5960 
                 3710 
                 433 
               
               
                 1.03 
                 Pa · s 
                 4580 
                 3100 
                 328 
                 6020 
                 3760 
                 434 
               
               
                 0.721 
                 Pa · s 
                 4610 
                 3140 
                 335 
                 6060 
                 3800 
                 435 
               
               
                 0.503 
                 Pa · s 
                 4620 
                 3160 
                 343 
                 6090 
                 3830 
                 436 
               
               
                 Melt visc.  
                   
                   
                   
                   
                   
                   
                   
               
               
                 at 280° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 666 
                 545 
                 98.7 
                 730 
                 514 
                 105 
               
               
                 329 
                 Pa · s 
                 758 
                 614 
                 102 
                 845 
                 583 
                 108 
               
               
                 229 
                 Pa · s 
                 850 
                 681 
                 104 
                 968 
                 656 
                 110 
               
               
                 160 
                 Pa · s 
                 940 
                 743 
                 106 
                 1090 
                 725 
                 112 
               
               
                 112 
                 Pa · s 
                 1020 
                 799 
                 107 
                 1200 
                 789 
                 113 
               
               
                 77.8 
                 Pa · s 
                 1100 
                 848 
                 108 
                 1300 
                 845 
                 113 
               
               
                 54.3 
                 Pa · s 
                 1160 
                 888 
                 109 
                 1390 
                 894 
                 114 
               
               
                 37.9 
                 Pa · s 
                 1220 
                 921 
                 109 
                 1470 
                 936 
                 114 
               
               
                 26.4 
                 Pa · s 
                 1260 
                 946 
                 110 
                 1540 
                 970 
                 115 
               
               
                 18.4 
                 Pa · s 
                 1300 
                 965 
                 111 
                 1590 
                 997 
                 115 
               
               
                 12.9 
                 Pa · s 
                 1320 
                 979 
                 111 
                 1630 
                 1020 
                 115 
               
               
                 8.97 
                 Pa · s 
                 1340 
                 989 
                 112 
                 1660 
                 1040 
                 116 
               
               
                 6.25 
                 Pa · s 
                 1360 
                 995 
                 114 
                 1680 
                 1050 
                 117 
               
               
                 4.36 
                 Pa · s 
                 1370 
                 1000 
                 116 
                 1700 
                 1060 
                 118 
               
               
                 3.04 
                 Pa · s 
                 1370 
                 1010 
                 119 
                 1710 
                 1070 
                 119 
               
               
                 2.12 
                 Pa · s 
                 1380 
                 1010  
                 123 
                 1720 
                 1080 
                 121 
               
               
                 1.48 
                 Pa · s 
                 1380 
                 1010 
                 128 
                 1730 
                 1090 
                 125 
               
               
                 1.03 
                 Pa · s 
                 1390 
                 1020 
                 135 
                 1740 
                 1100 
                 129 
               
               
                 0.721 
                 Pa · s 
                 1390 
                 1020 
                 144 
                 1740 
                 1110 
                 134 
               
               
                 0.503 
                 Pa · s 
                 1390 
                 1030 
                 154 
                 1740 
                 1120 
                 140 
               
               
                 Melt visc.  
                   
                   
                   
                   
                   
                   
                   
               
               
                 at 300° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 369 
                 265 
                 59.1 
                 59.1 
                 279 
                 41.3 
               
               
                 329 
                 Pa · s 
                 402 
                 285 
                 60.3 
                 60.3 
                 303 
                 41.3 
               
               
                 229 
                 Pa · s 
                 433 
                 303 
                 61.2 
                 61.2 
                 325 
                 41.2 
               
               
                 160 
                 Pa · s 
                 460 
                 318 
                 62.1 
                 62.1 
                 343 
                 41.1 
               
               
                 112 
                 Pa · s 
                 482 
                 330 
                 62.9 
                 62.9 
                 359 
                 41.1 
               
               
                 77.8 
                 Pa · s 
                 501 
                 340 
                 63.7 
                 63.7 
                 371 
                 41.1 
               
               
                 54.3 
                 Pa · s 
                 515 
                 347 
                 64.6 
                 64.6 
                 381 
                 41.1 
               
               
                 37.9 
                 Pa · s 
                 526 
                 353 
                 65.6 
                 65.6 
                 389 
                 41.3 
               
               
                 26.4 
                 Pa · s 
                 535 
                 358 
                 66.7 
                 66.7 
                 394 
                 41.6 
               
               
                 18.4 
                 Pa · s 
                 540 
                 361 
                 67.8 
                 67.8 
                 398 
                 42.1 
               
               
                 12.9 
                 Pa · s 
                 544 
                 364 
                 68.9 
                 68.9 
                 401 
                 42.9 
               
               
                 8.97 
                 Pa · s 
                 546 
                 366 
                 70.3 
                 70.3 
                 403 
                 44 
               
               
                 6.25 
                 Pa · s 
                 547 
                 368 
                 71.8 
                 71.8 
                 405 
                 45.7 
               
               
                 4.36 
                 Pa · s 
                 548 
                 370 
                 73.8 
                 73.8 
                 408 
                 48 
               
               
                 3.04 
                 Pa · s 
                 549 
                 373 
                 76.3 
                 76.3 
                 411 
                 50.8 
               
               
                 2.12 
                 Pa · s 
                 549 
                 375 
                 79.3 
                 79.3 
                 414 
                 54.1 
               
               
                 1.48 
                 Pa · s 
                 550 
                 378 
                 83 
                 83 
                 419 
                 58.1 
               
               
                 1.03 
                 Pa · s 
                 551 
                 383 
                 87.6 
                 87.6 
                 426 
                 62.7 
               
               
                 0.721 
                 Pa · s 
                 551 
                 388 
                 93.5 
                 93.5 
                 437 
                 68 
               
               
                 0.503 
                 Pa · s 
                 552 
                 395 
                 101 
                 101 
                 451 
                 74.1 
               
               
                   
               
               
                   
                   
                 22 
                   
                   
                 25 
                   
                   
               
               
                   
                   
                 (compar- 
                   
                   
                 (compar- 
                   
                   
               
               
                 Example 
                   
                 ative) 
                 23 
                 24 
                 ative) 
                 26 
                 27 
               
               
                   
               
               
                 Cone/plate 
                   
                   
                   
                   
                   
                   
                   
               
               
                 rheology 
                   
                   
                   
                   
                   
                   
                   
               
               
                 Melt visc. 
                   
                   
                   
                   
                   
                   
                   
               
               
                 at 260° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 1320 
                 1030 
                 731 
                 946 
                 380 
                 268 
               
               
                 329 
                 Pa · s 
                 1620 
                 1220 
                 834 
                 1120 
                 413 
                 286 
               
               
                 229 
                 Pa · s 
                 1940 
                 1420 
                 935 
                 1300 
                 444 
                 302 
               
               
                 160 
                 Pa · s 
                 2290 
                 1630 
                 1030 
                 1480 
                 471 
                 315 
               
               
                 112 
                 Pa · s 
                 2670 
                 1830 
                 1120 
                 1670 
                 493 
                 325 
               
               
                 77.8 
                 Pa · s 
                 3050 
                 2030 
                 1190 
                 1840 
                 511 
                 332 
               
               
                 54.3 
                 Pa · s 
                 3430 
                 2210 
                 1260 
                 2010 
                 525 
                 338 
               
               
                 37.9 
                 Pa · s 
                 3790 
                 2370 
                 1310 
                 2160 
                 535 
                 342 
               
               
                 26.4 
                 Pa · s 
                 4120 
                 2510 
                 1350 
                 2290 
                 542 
                 344 
               
               
                 18.4 
                 Pa · s 
                 4430 
                 2630 
                 1390 
                 2400 
                 547 
                 346 
               
               
                 12.9 
                 Pa · s 
                 4700 
                 2730 
                 1410 
                 2500 
                 551 
                 348 
               
               
                 8.97 
                 Pa · s 
                 4920 
                 2810 
                 1430 
                 2570 
                 555 
                 350 
               
               
                 6.25 
                 Pa · s 
                 5110 
                 2860 
                 1450 
                 2630 
                 557 
                 351 
               
               
                 4.36 
                 Pa · s 
                 5250 
                 2900 
                 1460 
                 2680 
                 559 
                 353 
               
               
                 3.04 
                 Pa · s 
                 5360 
                 2930 
                 1470 
                 2710 
                 561 
                 356 
               
               
                 2.12 
                 Pa · s 
                 5440 
                 2940 
                 1470 
                 2730 
                 563 
                 359 
               
               
                 1.48 
                 Pa · s 
                 5500 
                 2960 
                 1470 
                 2750 
                 567 
                 365 
               
               
                 1.03 
                 Pa · s 
                 5540 
                 2960 
                 1470 
                 2760 
                 571 
                 374 
               
               
                 0.721 
                 Pa · s 
                 5550 
                 2960 
                 1470 
                 2770 
                 577 
                 387 
               
               
                 0.503 
                 Pa · s 
                 5550 
                 2950 
                 1460 
                 2770 
                 584 
                 407 
               
               
                 Melt visc.  
                   
                   
                   
                   
                   
                   
                   
               
               
                 at 280° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 736 
                 525 
                 394 
                 379 
                 146 
                 95.1 
               
               
                 329 
                 Pa · s 
                 846 
                 585 
                 431 
                 100 
                 152 
                 97.6 
               
               
                 229 
                 Pa · s 
                 958 
                 644 
                 464 
                 458 
                 157 
                 99.4 
               
               
                 160 
                 Pa · s 
                 1070 
                 697 
                 493 
                 494 
                 161 
                 101 
               
               
                 112 
                 Pa · s 
                 1170 
                 746 
                 518 
                 525 
                 164 
                 102 
               
               
                 77.8 
                 Pa · s 
                 1270 
                 787 
                 538 
                 553 
                 166 
                 102 
               
               
                 54.3 
                 Pa · s 
                 1360 
                 822 
                 553 
                 576 
                 168 
                 103 
               
               
                 37.9 
                 Pa · s 
                 1430 
                 850 
                 565 
                 596 
                 169 
                 103 
               
               
                 26.4 
                 Pa · s 
                 1490 
                 871 
                 574 
                 613 
                 171 
                 104 
               
               
                 18.4 
                 Pa · s 
                 1540 
                 887 
                 579 
                 623 
                 172 
                 104 
               
               
                 12.9 
                 Pa · s 
                 1580 
                 899 
                 583 
                 632 
                 173 
                 104 
               
               
                 8.97 
                 Pa · s 
                 1610 
                 906 
                 584 
                 639 
                 174 
                 104 
               
               
                 6.25 
                 Pa · s 
                 1630 
                 911 
                 585 
                 645 
                 175 
                 105 
               
               
                 4.36 
                 Pa · s 
                 1650 
                 915 
                 586 
                 650 
                 177 
                 106 
               
               
                 3.04 
                 Pa · s 
                 1660 
                 917 
                 586 
                 656 
                 179 
                 107 
               
               
                 2.12 
                 Pa · s 
                 1660 
                 917 
                 585 
                 660 
                 181 
                 109 
               
               
                 1.48 
                 Pa · s 
                 1660 
                 917 
                 584 
                 665 
                 185 
                 112 
               
               
                 1.01 
                 Pa · s 
                 1660 
                 917 
                 583 
                 670 
                 190 
                 115 
               
               
                 0.721 
                 Pa · s 
                 1660 
                 917 
                 581 
                 675 
                 195 
                 119 
               
               
                 0.503 
                 Pa · s 
                 1650 
                 915 
                 578 
                 679 
                 202 
                 125 
               
               
                 Melt visc.  
                   
                   
                   
                   
                   
                   
                   
               
               
                 at 300° C. [Hz] 
                   
                   
                   
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 391 
                 231 
                 161 
                 243 
                 58.4 
                 42.2 
               
               
                 329 
                 Pa · s 
                 428 
                 247 
                 168 
                 260 
                 59.8 
                 42.7 
               
               
                 229 
                 Pa · s 
                 463 
                 261 
                 174 
                 276 
                 60.9 
                 43.1 
               
               
                 160 
                 Pa · s 
                 495 
                 272 
                 179 
                 291 
                 61.9 
                 43.4 
               
               
                 112 
                 Pa · s 
                 522 
                 282 
                 183 
                 303 
                 62.8 
                 43.8 
               
               
                 77.8 
                 Pa · s 
                 544 
                 289 
                 185 
                 312 
                 63.6 
                 44.2 
               
               
                 54.3 
                 Pa · s 
                 563 
                 294 
                 187 
                 320 
                 64.5 
                 44.6 
               
               
                 37.9 
                 Pa · s 
                 577 
                 298 
                 188 
                 326 
                 65.5 
                 45.2 
               
               
                 26.4 
                 Pa · s 
                 588 
                 301 
                 188 
                 331 
                 66.7 
                 45.9 
               
               
                 18.4 
                 Pa · s 
                 595 
                 302 
                 188 
                 335 
                 68.1 
                 46.9 
               
               
                 12.9 
                 Pa · s 
                 599 
                 304 
                 188 
                 338 
                 69.7 
                 48.3 
               
               
                 8.97 
                 Pa · s 
                 603 
                 304 
                 188 
                 342 
                 71.9 
                 50.1 
               
               
                 6.25 
                 Pa · s 
                 604 
                 304 
                 188 
                 344 
                 74.3 
                 52.5 
               
               
                 4.36 
                 Pa · s 
                 605 
                 304 
                 187 
                 346 
                 77.2 
                 55.5 
               
               
                 3.04 
                 Pa · s 
                 604 
                 304 
                 188 
                 349 
                 80.8 
                 59.2 
               
               
                 2.12 
                 Pa · s 
                 603 
                 304 
                 188 
                 352 
                 84.9 
                 63.4 
               
               
                 1.48 
                 Pa · s 
                 602 
                 305 
                 188 
                 356 
                 89.8 
                 68.4 
               
               
                 1.03 
                 Pa · s 
                 600 
                 306 
                 190 
                 361 
                 95.5 
                 74 
               
               
                 0.721 
                 Pa · s 
                 598 
                 307 
                 191 
                 368 
                 102 
                 80.6 
               
               
                 0.503 
                 Pa · s 
                 594 
                 308 
                 194 
                 375 
                 110 
                 88.1 
               
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                   
                 28 
                   
                 30 
               
               
                   
                   
                 (compar- 
                   
                 (compar- 
               
               
                 Example 
                   
                 ative) 
                 29 
                 ative) 
               
               
                   
               
               
                 Cone/plate  
                   
                   
                   
                   
               
               
                 rheology 
                   
                   
                   
                   
               
               
                 Melt visc.  
                   
                   
                   
                   
               
               
                 at 260° C. [Hz] 
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 831 
                 789 
                 315 
               
               
                 329 
                 Pa · s 
                 972 
                 918 
                 342 
               
               
                 229 
                 Pa · s 
                 1120 
                 1050 
                 367 
               
               
                 160 
                 Pa · s 
                 1260 
                 1170 
                 388 
               
               
                 112 
                 Pa · s 
                 1390 
                 1300 
                 405 
               
               
                 77.8 
                 Pa · s 
                 1520 
                 1410 
                 418 
               
               
                 54.3 
                 Pa · s 
                 1640 
                 1510 
                 428 
               
               
                 37.9 
                 Pa · s 
                 1740 
                 1590 
                 436 
               
               
                 26.4 
                 Pa · s 
                 1820 
                 1660 
                 441 
               
               
                 18.4 
                 Pa · s 
                 1890 
                 1720 
                 444 
               
               
                 12.9 
                 Pa · s 
                 1950 
                 1760 
                 446 
               
               
                 8.97 
                 Pa · s 
                 1990 
                 1800 
                 449 
               
               
                 6.25 
                 Pa · s 
                 2030 
                 1820 
                 450 
               
               
                 4.36 
                 Pa · s 
                 2050 
                 1840 
                 451 
               
               
                 3.04 
                 Pa · s 
                 2060 
                 1850 
                 454 
               
               
                 2.12 
                 Pa · s 
                 2070 
                 1850 
                 456 
               
               
                 1.48 
                 Pa · s 
                 2080 
                 1860 
                 460 
               
               
                 1.03 
                 Pa · s 
                 2090 
                 1860 
                 467 
               
               
                 0.721 
                 Pa · s 
                 2100 
                 1860 
                 476 
               
               
                 0.503 
                 Pa · s 
                 2100 
                 1860 
                 489 
               
               
                 Melt visc.  
                   
                   
                   
                   
               
               
                 at 280° C. [Hz] 
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 379 
                 377 
                 145 
               
               
                 329 
                 Pa · s 
                 414 
                 415 
                 152 
               
               
                 229 
                 Pa · s 
                 446 
                 450 
                 158 
               
               
                 160 
                 Pa · s 
                 475 
                 482 
                 163 
               
               
                 112 
                 Pa · s 
                 500 
                 509 
                 166 
               
               
                 77.8 
                 Pa · s 
                 520 
                 532 
                 169 
               
               
                 54.3 
                 Pa · s 
                 537 
                 550 
                 171 
               
               
                 37.9 
                 Pa · s 
                 550 
                 564 
                 173 
               
               
                 26.4 
                 Pa · s 
                 560 
                 574 
                 175 
               
               
                 18.4 
                 Pa · s 
                 567 
                 582 
                 177 
               
               
                 12.9 
                 Pa · s 
                 572 
                 586 
                 178 
               
               
                 8.97 
                 Pa · s 
                 575 
                 589 
                 180 
               
               
                 6.25 
                 Pa · s 
                 577 
                 591 
                 182 
               
               
                 4.36 
                 Pa · s 
                 578 
                 592 
                 185 
               
               
                 3.04 
                 Pa · s 
                 580 
                 594 
                 189 
               
               
                 2.12 
                 Pa · s 
                 581 
                 594 
                 193 
               
               
                 1.48 
                 Pa · s 
                 583 
                 596 
                 200 
               
               
                 1.03 
                 Pa · s 
                 586 
                 597 
                 208 
               
               
                 0.721 
                 Pa · s 
                 589 
                 600 
                 217 
               
               
                 0.503 
                 Pa · s 
                 592 
                 602 
                 228 
               
               
                 Melt visc.  
                   
                   
                   
                   
               
               
                 at 300° C. [Hz] 
                   
                   
                   
                   
               
               
                 471 
                 Pa · s 
                 279 
                 189 
                 63.5 
               
               
                 329 
                 Pa · s 
                 301 
                 201 
                 65 
               
               
                 229 
                 Pa · s 
                 321 
                 211 
                 66.1 
               
               
                 160 
                 Pa · s 
                 338 
                 219 
                 67.1 
               
               
                 112 
                 Pa · s 
                 353 
                 226 
                 67.9 
               
               
                 77.8 
                 Pa · s 
                 365 
                 231 
                 68.6 
               
               
                 54.3 
                 Pa · s 
                 375 
                 235 
                 69.3 
               
               
                 37.9 
                 Pa · s 
                 382 
                 237 
                 70.1 
               
               
                 26.4 
                 Pa · s 
                 388 
                 239 
                 70.9 
               
               
                 18.4 
                 Pa · s 
                 393 
                 241 
                 72 
               
               
                 12.9 
                 Pa · s 
                 397 
                 242 
                 73.4 
               
               
                 8.97 
                 Pa · s 
                 399 
                 243 
                 75.3 
               
               
                 6.25 
                 Pa · s 
                 402 
                 244 
                 77.8 
               
               
                 4.36 
                 Pa · s 
                 403 
                 245 
                 81.1 
               
               
                 3.04 
                 Pa · s 
                 405 
                 247 
                 85.4 
               
               
                 2.12 
                 Pa · s 
                 407 
                 249 
                 90.5 
               
               
                 1.48 
                 Pa · s 
                 410 
                 254 
                 96.6 
               
               
                 1.03 
                 Pa · s 
                 412 
                 260 
                 104 
               
               
                 0.721 
                 Pa · s 
                 417 
                 268 
                 111 
               
               
                 0.503 
                 Pa · s 
                 420 
                 277 
                 120 
               
               
                   
               
            
           
         
       
     
     Table 9 shows that compared to the inventive examples 11-12, 14-15, 17-18, 20-21, 23-24, 26-27 and 29-30 the comparative examples 10, 13, 16, 19, 22, 25 and 28 which do not comprise the diglycerol ester in each case exhibit higher melt viscosities in the table at the three measurement temperatures and thus have poorer flowability.