| 摘要 |
PURPOSE:To provide the titled resin compsn. having excellent impact resistance, thermal stability, etc., by mixing a multi-component copolymer mainly composed of alpha-methylstyrene with a graft copolymer obtd. by polymerizing a vinyl monomer mixture in the presence of a rubbery polymer. CONSTITUTION:50-95pts.wt. multi-component copolymer (A) obtd. by emulsion- polymeizing a monomer mixture consisting of 60-90wt% alpha-methylstyrene, 5- 35wt% acrylonitrile, 1-25wt% N-phenylmaleimide, etc. is mixed with 50- 5pts.wt. graft copolymer (B) obtd. by polymerizing 60-20pts.wt. monomer mixture of 45-95wt% arom. vinyl monomer and/or alkyl (meth)acrylate, 5-45wt% vinyl cyanide monomer, 0-25wt% N-phenylmaleimide, etc. in the presence of 40-80pts.wt. rubbery polymer, to obtain the desired thermoplastic resin compsn.
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