| 摘要 |
1. Thermoplastic moulding compositions, containing A) 10 to 90 parts by weight of a thermoplastic aromatic polycarbonate, B) 10 to 50 parts by weight of a graft polymer obtained from B.1) 5 to 90 parts by weight of a mixture of B.1.1) 50 to 95 parts by weight of styrene, alpha-methylstyrene, nuclear-substituted styrene, methyl methacrylate or mixtures thereof and B.1.2) 50 to 5 parts by weight of (meth)acrylonitrile, methyl methacrylate, maleic anhydride, N-substituted maleinimide or mixtures thereof on B.2) 95 to 10 parts by weight of a rubber having a glass temperature Tg of =< -10 degrees C, C) 0 to 80 parts by weight of a thermoplastic copolymer obtained from C.1) 50 to 95 parts by weight of styrene, alpha-methylstyrene, nuclear-substituted styrene, methyl methacrylate or mixtures thereof and C.2) 50 to 5 parts by weight of (meth)acrylonitrile, methyl methacrylate, maleic anhydride, N-substituted maleinimide or mixtures thereof, the sum of the parts by weight of A) + B) + C) being 10 parts by weight in each case, and D) 0.5 to 10 parts by weight, relative to the 100 parts by weight of the sum of A) + B) + C), of one or more polyurethanes obtained from aliphatic polyols and polyisocyanates, characterized in that the polyurethane contains, as an incorporated chain extender, a compound of the formula (I) see diagramm : EP0207327,P8,F1 wherein R is H, a C1 - to C12 -alkyl, a cycloalkyl or an optionally substituted aryl and n is 0 or 1. |
