THERMOPLASTIC RESIN COMPOSITION HAVING IMPROVED IMPACT STRENGTH

摘要

A thermoplastic resin composition suitable for the external material of an electrical product or an electronic product is provided to improve impact resistance remarkably. A thermoplastic resin composition comprises 30-99 parts by weight of a styrene-based polymer containing an epoxy group which comprises 5-100 wt% of a vinyl copolymer containing an epoxy group, and 0-95 wt% of a rubber reinforced styrene-based copolymer resin; and 1-70 parts by weight of a polyester resin. Preferably the vinyl copolymer containing an epoxy group is prepared by copolymerizing 0.001-5.0 mol% of an unsaturated epoxy-based compound containing an epoxy group and 95-99.999 mol% of a vinyl-based compound; and the styrene-based polymer contains 0.001-5.0 mo% of an epoxy group.