THERMOPLASTIC RESIN COMPOSITION HAVING GOOD BRAKE OIL RESISTANCE

摘要

A thermoplastic resin composition, a pellet obtained by extruding the composition, and a part for a motorcycle molded from the composition are provided to improve brake oil resistance, weather resistance, heat resistance, fluidity and low temperature impact strength. A thermoplastic resin composition comprises 10-20 parts by weight of an acrylic graft copolymer obtained by grafting a monomer mixture comprising an aromatic vinyl compound and a cyanovinyl compound to an acrylic rubber; 15-25 parts by weight of a diene-based graft copolymer obtained by grafting a monomer mixture comprising an aromatic vinyl compound and a cyanovinyl compound to a diene-based rubber; 30-40 parts by weight of a cyanovinyl compound-aromatic vinyl compound copolymer containing 31-33 wt% of a cyanovinyl compound; and 10-20 parts by weight of a cyanovinyl compound-aromatic vinyl compound copolymer containing 27-29 wt% of a cyanovinyl compound.