| 摘要 |
PURPOSE: A styrene thermoplastic resin composition which has excellent impact resistance at low-temperature and extrusion stability is provided by applying a graft copolymer made of butadiene rubber substances having different rubber particle size when producing ABS resin composition and adding at least one compound selected from a group consisting salt of divalent metal, dichloride metal, and dioxide metal. CONSTITUTION: A styrene thermoplastic resin composition having excellent impact resistance at low temperature and extrusion stability is comprised of: a base resin(ABS resin) 100 wt.% consisting (A) 25-60 wt.% of graft copolymer resin containing styrene formed of (a1) a graft copolymer resin containing styrene having an average rubber particle size of 0.28-0.4 micrometer, and (a2) a graft copolymer resin containing styrene having an average rubber particle size of 0.1-0.2 micrometer, and (B) 40-75 wt.% of graft copolymer resin containing styrene, and (C) 0.01-2 wt.% of salt of divalent metal. In order to reinforce the impact resistance of the composition, (a2) is preferably added in an amount of 20-80 wt.%, more preferably 30-60 wt.% based on the weight of (A). |
