Patent DE-2914982-A1 (DE)
Inventor: MARQUARDT KLAUS DIPL CHEM DR
IPC: C08G18/71
Filed: 1979-04-12
Abstract: 1. Claims for the contracting states : BE, CH, DE, FR, GB, IT, LI, NL, SE Hardenable composition comprising urethanes that are liquid at room temperature or are solid at room temperature and can be melted at below 60 degrees C, which have been manufactured by reaching esters or polyesters containing hydroxy terminal groups with difunctional and/or polyfunctional, and optionally subsequently with monofunctional, isocyanatoalkyl and/or isocyanatoaryl compounds, characterised in that the reacted esters or polyesters are those of the general formula I  see diagramm : EP0017917,P7,F3  in which : R represents straight-chain hydrocarbon radicals having from 2 to 10 carbon atoms, which can optionally be substituted by up to 5 methyl, ethyl and/or propyl groups, it being possible for all the radicals R within a (poly)ester molecule of the formula I to be the same or alternatively for the radicals R to be different, A represents an ethylenically unsaturated radical of one of the general formulae II to V :  see diagramm : EP0017917,P7,F7   see diagramm : EP0017917,P7,F8   see diagramm : EP0017917,P7,F9   see diagramm : EP0017917,P7,F10  in which R**1 represents H or CH3 , R**2 represents a (p+1)-functional straight-chain or branched alkyl radical or a (p+1)-functional cycloalkyl radical, each having from 1 to 20 carbon atoms, R**3 represents a radical having the same meaning as R**2 with p=1, X represents O or NR**4 , Y represents O or NH or NR**4 , R**4 represents CH3 or C2 H5 , n represents an integer from 1 to 100, and p represents an integer from 1 to 3. 1. Claims for the contracting state : AT Process for the manufacture of hardenable compositions comprising urethanes that are liquid at room temperature or are solid at room temperature and can be melted at below 60 degrees C, by reacting isocyanato-alkyl and/or isocyanatoaryl compounds with esters or polyesters containing hydroxy terminal groups, characterised in that esters or polyesters of the general formula I  see diagramm : EP0017917,P8,F5  in which : R represents straight-chain hydrocarbon radicals having from 2 to 10 carbon atoms, which can optionally be substituted by up to 5 methyl, ethyl and/or propyl groups, it being possible for all the radicals R within a (poly)ester molecule of the formula I to be the same or alternatively for all the radicals R to be different, A represents an ethylenically unsaturated radical of one of the general formulae II to V :  see diagramm : EP0017917,P8,F1 see diagramm : EP0017917,P8,F2   see diagramm : EP0017917,P8,F3   see diagramm : EP0017917,P8,F4  in which R**1 represents H or CH3 , R**2 represents a (p+1)-functional straight-chain or branched alkyl radical or a (p+1)-functional cycloalkyl radical, each having from 1 to 20 carbon atoms, R**3 represents a radical having the same meaning as R**2 with p=1, X represents O or NR**4 , Y represents O or NH or NR**4 , R**4 represents CH3 or C2 H5 , n represents an integer from 1 to 100, and p represents an integer from 1 to 3, are reacted with di- and/or poly-isocyanato-alkyl and/or -aryl compounds in such quantity ratios that the numerical ratio of isocyanate groups to hydroxy groups is between 0.2:1 and 1:1, and optionally subsequently with aryl monoisocyanates and/or alkyl monoisocyanates.