A flame-retarded thermoplastic resin composition is provided which is excellent in its workability, heat resistance, humidity resistance, mechanical strength and flame retardance. The composition comprises 100 parts by weight of a thermoplastic resin, from 1 to 50 parts by weight of an aromatic orthophosphate ester of formula (I) which is solid at normal temperature (25°C), and from 1 to 50 parts by weight of a nitrogen-containing compound. In formula (I) each of R1, R2, and R3 is independently hydrogen or an alkyl group having from 1 to 8 carbon atoms provided that R1, R2 and R3 are not simultaneously hydrogen.
本发明提供了一种阻燃型热塑性
树脂组合物,它具有优异的可加工性、耐热性、耐湿性、机械强度和阻燃性。该组合物包括 100 份(重量)热塑性
树脂、1 至 50 份(重量)在常温(25°C)下为固态的式 (I)芳香族原
磷酸酯和 1 至 50 份(重量)
含氮化合物。在式(I)中,R1、R2 和 R3 各自独立地为氢或具有 1 至 8 个碳原子的烷基,但 R1、R2 和 R3 不能同时为氢。