| 摘要 |
PURPOSE: A styrenic resin composition is provided to ensure excellent paintability and impact resistance, to be broadly applied in the molding of various products, especially materials for motorcycle requiring relatively little demands of heat resistance. CONSTITUTION: A styrenic resin composition comprises (A) 20-40 weight% of styrenic graft resin graft-polymerized with a rubber polymer of which average particle size is 0.25-0.4 micron; and (B) 60-80 weight% of vinyl cyanide compound-aromatic vinyl compound copolymer which has 60,000-100,000 of average molecular weight and contains 30-45 weight% of vinyl cyanide compound. The styrenic graft resin is prepared by performing emulsion graft polymerization of a vinyl cyanide compound and an aromatic vinyl compound in the presence of a rubbery polymer.
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