Flame-retardant thermoplastic polyester resin composition and molded article

摘要

The present invention includes a flame-retardant thermoplastic polyester resin composition which provides a molded article having excellent tracking resistance and excellent mechanical characteristics, while maintaining high flame retardancy; and a molded article which is obtained by molding the flame-retardant thermoplastic polyester resin composition. A flame-retardant thermoplastic polyester resin composition of an embodiment of the present invention contains 1-70 parts by weight of two or more (C) phosphorus-containing flame retardants that are selected from the group consisting of (C-1) condensed phosphoric acid esters, (C-2) phosphazene compounds and (C-3) organic metal phosphinates and 1-90 parts by weight of (D) a nitrogen-containing flame retardant per 100 parts by weight of the total of 50-95 parts by weight of (A) a thermoplastic polyester resin and 5-50 parts by weight of (B) a methacrylic resin.

主权项

1. A flame-retardant thermoplastic polyester resin composition comprising:
100 parts by weight in total of
(A) 50 to 95 parts by weight of a thermoplastic polyester resin, and(B) 5 to 50 parts by weight of a methacrylate resin; 1 to 70 parts by weight of (C) phosphor-containing flame retardants which are at least 2 members selected from the group consisting of (C-1) a condensed phosphate ester, (C-2) a phosphazene compound, and (C-3) an organic metal phosphinate salt in relation to 100 parts by weight of the total of (A) and (B); 1 to 90 parts by weight of (D) a nitrogen-containing flame retardant in relation to 100 parts by weight of the total of (A) and (B); and 1 to 50 parts by weight of (E) an aromatic polycarbonate resin in relation to 100 parts by weight of the total of the thermoplastic polyester resin (A) and the methacrylate resin (B); wherein ratio of total content of the condensed phosphate ester (C-1) and the phosphazene compound (C-2) to the total content of the methacrylate resin (B) and the aromatic polycarbonate resin (E) ({(C-1)+(C-2)}/{(B)+(E)}) is 50/50 to 30/70 (weight ratio).