申请人:Sony Corporation
公开号:EP2404968A1
公开(公告)日:2012-01-11
[Object] To provide a polycarbonate resin composition that is thin but has high flame retardancy and surface hardness for which a hard coating layer is not required, causes less gas generation in molding, has excellent heat resistance, preservation stability, and recyclability, and does not contain bromine and phosphate flame retardants, and to provide a molded product thereof.
[Solving Means] A polycarbonate resin composition includes, as a main resin material, an aromatic polycarbonate resin occupying 85 to 95 mass% of the main resin material and having a weight-average molecular weight of 37000 to 55000 in polystyrene equivalent molecular weight, and a polystyrene resin occupying 15 to 5 mass% of the main resin material and containing no rubber component. A resin component other than the above may be contained resulting from recycled materials as long as the characteristics of the resin composition are not impaired. A polyfluoroolefin resin, an organic sulfonate flame retardant, and a silicon flame retardant are added to the resin material. The aromatic polycarbonate resin composition is molded into a predetermined shape.
[目的]提供一种聚碳酸酯树脂组合物,该组合物很薄,但阻燃性和表面硬度高,不需要硬涂层,成型时产生的气体少,具有优异的耐热性、保存稳定性和可回收性,且不含溴和磷酸盐阻燃剂,并提供其成型产品。
[解决方法]一种聚碳酸酯树脂组合物包括作为主树脂材料的芳香族聚碳酸酯树脂(占主树脂材料的 85 至 95%)和聚苯乙烯当量分子量的重量平均分子量为 37000 至 55000 的聚苯乙烯树脂(占主树脂材料的 15 至 5%),且不含橡胶成分。只要不影响树脂组合物的特性,也可以使用回收材料制成的上述以外的树脂成分。在树脂材料中添加聚氟烯烃树脂、有机磺酸盐阻燃剂和硅阻燃剂。芳香族聚碳酸酯树脂组合物被模塑成预定形状。