A polycarbonate resin composition and a molded article thereof are described, which have good flame retardance and high thermal stability when molded under high temperature. The resin composition contains a resin modifier (B) containing a tetrafluoroethylene-based polymer (p1) and a vinyl polymer (p2) other than the polymer (p1). The resin modifier (B) is obtained by using an alkaline (earth) metal salt other than a sulfate salt to segregate from a latex containing the polymer (p1) and the polymer (p2). The polymer (p2) is formed by performing polymerization on a vinyl monomer (X) containing at least 20 mass% of an aromatic vinyl monomer (x1) in the presence of at least one emulsifier selected from a phosphoric acid-based emulsifier, a carboxylic acid-based emulsifier, and a nonionic emulsifier.
本发明描述了一种聚
碳酸酯
树脂组合物及其模塑制品,它们在高温下模塑时具有良好的阻燃性和高热稳定性。该
树脂组合物含有一种
树脂改性剂 (B),其中含有
四氟乙烯基聚合物 (p1) 和除聚合物 (p1) 之外的
乙烯基聚合物 (p2)。
树脂改性剂 (B) 是通过使用
硫酸盐以外的碱(土)
金属盐从含有聚合物 (p1) 和聚合物 (p2) 的胶乳中分离出来而得到的。聚合物(p2)是通过在至少一种选自
磷酸系
乳化剂、
羧酸系
乳化剂和非离子
乳化剂的
乳化剂存在下,对含有至少 20 质量%的芳香族
乙烯基单体(x1)的
乙烯基单体(X)进行聚合而形成的。