| 摘要 |
PROBLEM TO BE SOLVED: To obtain a solvent-resistant resin composition having good molding processability without impairing both transparency and weatherability inherent in acrylic resins, and to provide vehicle lamp lens using the composition. SOLUTION: The solvent-resistant resin composition is obtained by melt blending 40-80 pts.wt. of a copolymer (A) and 60-20 pts.wt. of a copolymer (B), wherein the copolymer (A) is composed of 85-95 wt.% of MMA (methyl methacrylate) units and 5-15 wt.% of MA (methyl acrylate) units and has a weight-average molecular weight of 80,000-160,000 and the copolymer (B) which is a terpolymer is composed of 70-80 wt.% of MMA units, 12-18 wt.% of ST (styrene) units and 8-12 wt.% of MAH (maleic anhydride) units and has a weight-average molecular weight of 120,000-160,000. The vehicle lamp lens is obtained by injection molding of the resin composition. COPYRIGHT: (C)2004,JPO
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