RESIN COMPOSITION, RESIN COMPOSITION FOR TRANSPARENT AUTOMOBILE MEMBERS, TRANSPARENT COVER FOR METER PANEL, AND HEMISPHERICAL LENS
申请人:Denka Company Limited
公开号:EP3296357A1
公开(公告)日:2018-03-21
A resin composition capable of producing a molded article excellent in transparency, heat resistance, surface hardness, impact resistance and hue is provided. According to the present invention, there is provided a resin composition comprising 15 to 100 mass% of a styrene-based copolymer (A) and 0 to 85 mass% of a methacrylic resin(B), wherein the styrene-based copolymer (A) comprises 45 to 85 mass% of an aromatic vinyl monomer unit, 5 to 45 mass% of a (meth)acrylic ester monomer unit, and 10 to 30 mass% of an unsaturated dicarboxylic anhydride monomer unit, and has a weight average molecular weight(Mw) of 100,000 to 300,000, and a total light transmittance of 89 % or more for a thickness of 2 mm.
本发明提供了一种树脂组合物,该树脂组合物能够生产出透明度、耐热性、表面硬度、抗冲击性和色调均优异的成型品。根据本发明,提供了一种树脂组合物,它包含 15 至 100 质量%的苯乙烯基共聚物 (A) 和 0 至 85 质量%的甲基丙烯酸树脂 (B),其中苯乙烯基共聚物 (A) 包含 45 至 85 质量%的芳香族乙烯基单体单元、5 至 45 质量%的(甲基)丙烯酸酯单体单元和 10 至 30 质量%的不饱和二羧酸酐单体单元,其重量平均分子量(Mw)为 100,000 至 300,000,厚度为 2 毫米时的总透光率为 89 % 或以上。