| abstract |
(57) [Summary] [Object] To provide a flame-retardant thermoplastic resin composition having excellent flame retardancy, thermal stability, and light resistance. [Structure] A halogenated epoxy compound (C) represented by the following formula (1) and a hindered phenol-based and / or thioether-based antioxidant are added to a mixture of a graft copolymer (A) and a copolymer (B). A flame-retardant thermoplastic resin composition having excellent thermal stability, which is obtained by blending (D) in a specific amount range. Embedded image (In the formula, n is an integer of 0 to 15, R is an isopropylidene group, a methylene group or a sulfone group, X is bromine or chlorine, a, b, c, d show the integer of 1-4. [Effect] The obtained resin composition has the effects of not causing a gelation reaction and having extremely excellent thermal stability. |