THERMOPLASTIC POLYMER COMPOSITION

PURPOSE:To obtain a composition having excellent balance of characteristics such as impact resistance, thermal aging resistance, weather resistance and mechanical resistance by blending a specific thermoplastic resin with copolymer rubber. CONSTITUTION:(A) 20-99wt.% thermoplastic resin selected from polyacetal, polycarbonate, polyphenylene oxide, thermoplastic polyester, styrene-based resin, acrylic resin, polyarylate, polysulfone, polyether sulfone, polyallyl sulfone, polyether imide and poly(4-methylpentene) is blended with (B) 80-1wt.% copolymer rubber comprising 10-95wt.% alpha, beta unsaturated carboxylic acid ester, 0.1-10wt.% crosslinkable monomer, 0.1-20wt.% monomer containing a functional group selected from carboxyl group, amino group, epoxy group and hydroxyl group, 0-50wt.% vinyl cyanide monomer and 0-50wt.% conjugated diene monomer as copolymer components and having >=20wt.% gel content.