Flame retardant resin composition

PURPOSE: A composition for obtaining a flame retardant resin is provided, to obtain a resin composition containing no organic halogen compound and having excellent flame retardancy without deterioration of the physical and chemical properties of a resin. CONSTITUTION: The composition comprises a resin; and the organic phosphorus compound represented by the formula 1, wherein R1 and R2 which are identical or different each other represent H, an alkyl group of C1-C18, an aryl group, a hydroxymethyl group, a 2-hydroxyethyl group, a 2-carboxyethyl group, a 2-carboxypropyl group, a 2-alkoxycarbonylethyl group, a 2-(2-hydroxyethoxy)carbonylethyl group, a 2-alkoxycarbonylpropyl group, a 2-cyanoethyl group, a 2-carbamoylethyl group, a glycidyl group, a benzyl group, a 4-methylbenzyl group, a 2,5-dihydroxyphenyl group, a 1,4-dihydroxy-2-naphthyl group or an alkoxy group. The resin is any one selected from the group consisting of an epoxy resin, an unsaturated polyester resin, a polyethylene terephthalate resin, a phenol resin, an ABS resin, a polycarbonate resin, an ABS-polycarbonate alloy resin and a polyphenylene oxide resin. 본 발명은 신규한 유기 인화합물을 함유하고, 유기 할로겐 화합물을 함유하지 않은 난연성 수지 조성물에 관한 것이다. 본 발명에 의하면, 가연성 수지에 하기 화학식 1의 유기 인화합물을 함유시킴으로서, 수지 고유의 물리적 및 화학적 성질을 열화시키지 않고 고도한 난연성을 갖는 난연성 수지 조성물을 제공한다: 상기 식에서, R및 R는 같거나 다를 수 있으며, 수소원자, C-C알킬기, 아릴기, 히드록시메틸기, 2-히드록시에틸기, 2-카르복시에틸기, 2-카르복시프로필기, 2-알콕시카르보닐에틸기, 2-(2-히드록시에톡시)카르보닐에틸기, 2-알콕시카르보닐프로필기, 2-시아노에틸기, 2-카르바모일에틸기, 글리시딜기, 벤질기, 4-메틸벤질기, 2,5-디히드록시페닐기, 1,4-디히드록시-2-나프틸기 또는 알콕시기를 나타낸다.