| 摘要 |
PURPOSE:To provide a thermoplastic resin compsn. having well-balanced properties between heat resistance and impact resistance, by blending a multi-component polymer obtd. by polymerizing a monomer mixture contg. a p-alkylstyrene and an N-substd. maleimide with a specified graft copolymer. CONSTITUTION:A compsn. is obtd. by blending 50-95pts.wt. multi-component copolymer (A) obtd. by polymerizing a monomer mixture consisting of 20- 80wt% p-alkylstyrene of formula I (wherein R1, R2, R3 are each H, methyl), 5-45wt% N-substd. maleimide of formula II (wherein R is H, a 1-20C hydrocarbon group) and 0-50wt% other copolymerizable vinyl monomer with 5- 50pts.wt. graft copolymer (B) obtd. by graft-polymerizing 80-30pts.wt. vinyl monomer selected from an arom. vinyl monomer, a vinyl cyanide monomer and (meth)acrylic acid monomer in the presence of 20-70pts.wt. rubbery polymer.
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