| abstract |
PURPOSE: To provide a compound showing high flame resistancy and impact strength and never loosing the characteristic in working or storage by blending a thermoplastic copolymer, a graft polymer, a specified phosphorus compound, and a tetrafluoroethylene polymer. n CONSTITUTION: To (A) 40-90 parts by weight (hereinafter referred to as part) thermoplastic aromatic polycarbonate, (B) 10-50 parts thermoplastic copolymer obtained by blending 50-95 wt.% (hereinafter referred to as %) styrene or the like to 5-50% acrylonitrile or maleic anhydride and (C) 0-25 parts graft polymer obtained by grafting 10-95 parts rubber having a glass transition temperature Tg≤10°C to 5-90 parts mixture of 50-95% styrene or the like and 5-50% (meth) acrylonitrile are blended, and to 100 parts components A-C, (D) 1-25 parts phosphor compound of the formula (R is direct bond or the like; X is 0, 1 or 2) and (E) 0.05-5.0 parts tetrafluoroethylene polymer having an average grain size of 0.05-20 μm and a density of 1.2-1.9 g/m 3 are blended. n COPYRIGHT: (C)1990,JPO |