| 摘要 |
The invention relates to a thermoplastic moulding composition comprising a polycarbonate A, a graft copolymer B and a copolymer C. Component A is an aromatic polycarbonate prepared using conventional branching agents. The polycarbonate A makes up from 10 to 90% by weight, based on the moulding composition. The graft copolymer B is present in a proportion of from 10 to 50% by weight, based on the moulding composition, and contains, as graft base, an elastomer (b1) built up from at least one of the monomers from the group consisting of conjugated dienes having 4 or 5 carbon atoms, alkyl (meth)acrylates having 1 to 8 carbon atoms in the alkyl radical, vinylaromatic monomers having 6 to 12 carbon atoms, ethylene, propylene and a non-conjugated diene. From 20 to 60% by weight, based on B, of a mixture of styrene and acrylonitrile is grafted onto this graft base. The copolymer C makes up from 0.5 to 80% by weight, based on the moulding composition, and is built up from at least one of the monomers styrene or alpha -methylstyrene and acrylonitrile. The moulding composition may contain conventional additives and is used to produce mouldings.
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