GRAFT COPOLYMER, THERMOPLASTIC RESIN COMPOSITION, AND MOLDED OBJECT

摘要

A resin which has excellent impact resistance because of a rubber ingredient contained therein and, despite this, can give an injection-molded object which, even when large, can have a beautiful cloud-free surface throughout. The resin is suitable for producing a molding on which a vapor deposition layer is to be formed by direct vapor deposition. The resin is suitable for producing a molding to be bonded by the hot-plate welding method, in particular, a molding such as a housing member for automotive lamps, which is required to have weatherability. Also provided is a graft copolymer (B) obtained by: polymerizing a (meth)acrylic ester monomer (b1) which gives a homopolymer having a glass transition temperature (Tg) exceeding 0°C, in the presence of a composite rubber (A) comprising a polyorganosiloxane (A1) and a poly(meth)acrylic ester (A2); and subsequently polymerizing an aromatic vinyl monomer (b2) and a vinyl cyanide monomer (b3).