| 摘要 |
PROBLEM TO BE SOLVED: To provide a styrenic copolymer resin composition having excellent transparency and physical properties, especially high chemical resistance. SOLUTION: The styrenic copolymer resin composition for forming a transparent molded article is composed of (A) a styrene-(meth)acrylate copolymer, (B) a crystalline ester polymer and (C) a styrenic block copolymer. The weight ratios of A, B and C satisfy the formulas 0.1≤B/(A+B)<0.6 and 0.01≤C/(A+B+C)<0.7. The styrene-(meth)acrylate copolymer of the component A is a copolymer composed of a styrenic constituent unit and a (meth)acrylic acid ester constituent unit, the crystalline ester polymer of the component B is a crystalline hetero-chain polymer compound containing a carboxylic acid ester group in the repeating unit of the main chain, and the styrenic block copolymer of the component C is a polymer having at least two styrenic blocks and at least one conjugated diene polymer block. COPYRIGHT: (C)2005,JPO&NCIPI
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