Patent DE-10136286-A1 (DE)
Title: Thermoplastic block copolymers with poly(meth)acrylate and polyamide segments, used for production of fibres, film, mouldings and hot-melt adhesives or as coupling agents for polyamides and acrylics or polycarbonates
Inventor: HOFF HEINZ
IPC: B32B27/08
Filed: 2001-07-25
Abstract: Thermoplastic block copolymers with poly(meth)acrylate and polyamide segments, derived from:  (I) poly(meth)acrylate-diols; (II) polyamide-dicarboxylic acids; and  (III) other diols or diamines. Thermoplastic block copolymers of formula (A), containing the following segments (wt. %):  (I) optionally imidated poly(meth)acrylate-diol(s) (HO-A-OH) of formula (1) (15-70); (II) polyamide-dicarboxylic acid(s) (HOOC-B-COOH) of formulas (IIA) or (IIB) (30-90); and  (III) diol(s) or diamine(s) of formula (III) (1-20).  p  = 1-20; and q, r  = 1-10 R<1>-(CH2-C(R<2>)(COOR<3>))z-R<4> (1), HO-(CO-(CH2)a-NH)b-CO-R<7>-COOH (IIA) HO-(CO-R<7>-CO-NH-R<8>-NH)b-CO-R<7>-COOH (IIB)  HX-D-XH (III) z  = 4-50;  R<1>  = -S-R<5>-OH, -C(C6H5)2-R<5>-OH or -SCS-N(C2H5)-C2H4-OH; R<2>  = H or methyl;  R<3>  = optionally halogenated 1-12C alkyl; R<4>  = R<5>OH, SCS-N(C2H5)-C2H4OH or CH2-CHR<2>-COOR<5>-OH;  R<5>  = optionally unsaturated 2-20C aliphatic hydrocarbylene, cycloaliphatic hydrocarbylene with up to 36 C atoms, 8-20C aliphatic-aromatic hydrocarbylene, a divalent aliphatic ether residue of formula R<6>-O-R<6>' or a divalent polyether residue of formula -(CnH2nO)m-CpH2p-;  R<6>, R<6>'  = groups with a total of 4-20C atoms;  n, p  = 2-4;  m  = at least 1;  a = 5-11; b  = 2-40;  R<7>  = hydrocarbylene groups as listed for R<5>;  R<8>  = 2-12C aliphatic hydrocarbylene, 6-20C cycloaliphatic hydrocarbylene, 8-20C aliphatic-aromatic hydrocarbylene, or -R<6>-O-R<6>'-;  X  = NH or O; D  = optionally unsaturated 4-36C (cyclo)aliphatic hydrocarbylene, an optionally unsaturated aliphatic olefin polymer (mol. wt. 500-4000), a divalent polyether residue as in R<5> (mol. wt. 400-2500), a polyester residue of formula HO-R<9>-O-(CO-(CH2)a-O)n-H (4A) in which a = 5-11 and n = 5-30 or HO-R<9>-O-(CO-R<7>-CO-O-R<9>-O)n-H (4B) in which n = 3-20, or an organic polysiloxane residue with a mol. wt. of 500-3000;  R<9>  = 2-36C (cyclo)aliphatic hydrocarbylene Independent claims are also included for: (a) method for the production of (A) comprising:  (i) production of (co)polyamide blocks with a number-average molecular weight (Mn) of 500-5000 (preferably 750-2500) and an amino end-group content of not more than 50 mmols/kg by polymerisation or polycondensation at 180-300 deg C and 1-30 bar (optionally with addition of component D if X = NH), followed by degassing to remove water for at least 0.5 hour at pressures down to 50 mbar; (ii) addition of  alpha ,w-functionalized polyalkyl (meth)acrylate-diols (Mn = 600-5000, preferably 900-2500) in the form of solid, solution or melt, together with all or part of the diol component (III) (if X = O), or optional reaction of component (III) (X = O) with the PMMA-diol (I) in a parallel condensation step to give DMMP-polyester-diol; (iii) further polycondensation at 180-300 deg C under reduced pressure in presence of 0.05-0.2 wt% catalyst to give (A) and (iv) discharge from the reactor or further processing to molded products;  (b) thermoplastic laminates comprising: (i) a layer based on (co)polyamide; (ii) layer(s) of thermoplastic molding material selected from polyalkyl (meth)acrylates (homo- or co-polymers in which up to 50 mol. % of the alkyl (meth)acrylate may be replaced by butyl (meth)acrylate, methacrylic acid, itaconic acid, styrene or maleic anhydride), polycarbonates, fluoropolymers and/or perfluorinated polymers; and (iii) at least one layer between (i) and (ii) based on a mixture of the polymers in (i) and (ii) with block copolymers (A);  (c) optical leads with a fibre core and a fibre casing containing a plastic light guide with its protective sheath, in which the sheath consists of (co)polyamide with a melting point below 220 deg C and the fibre casing consists of polymers based on vinylidene fluoride, tetrafluoroethylene, hexafluoropropene, tetrafluoropropyl, pentafluoropropyl, trifluoroethyl and/or heptadecafluorodecyl methacrylate(s), optionally with acrylic acid- or acrylate-modified polymers, or mixtures of these, with block copolymers (A) being used as the adhesive between fibre casing and protective layer.