FLAMEPROOF THERMOPLASTIC RESIN COMPOSITION

摘要

The flameproof thermoplastic resin composition according to the present invention comprises (A) 100 parts by weight of a rubber modified styrene comprising resin (a1) 10 to 100 % by weight of a grafted copolymer resin prepared by graft polymerization with a rubber phase polymer, an aromatic vinyl monomer, a monomer copolymerizable with said aromatic vinyl monomer and a monomer for processability and thermal resistance, and (a2) 0 to 90 % by weight of a copolymer resin prepared by copolymerization with an aromatic vinyl monomer, a ,monomer copolymerizable with said aromatic vinyl monomer and a monomer for processability and thermal resistance, and (B) 0.1 to 15 parts by weight of a ring-shaped alkyl phosphonic acid compound represented by the following formula: (I) wherein R1 and R2 are independently of each other C1-C4 alkyl and x is 0 or 1.