Abstract:
PURPOSE: An environment-friendly thermoplastic resin composition is provided to have excellent flame retardance, to be environment-friendly, and to improve drop dart impact strength, flowability, chemical resistance, thermal stability, and processability. CONSTITUTION: An environment-friendly thermoplastic resin composition comprises a rubber-reinforced styrene-based resin, a recycled polyester resin, an epoxy group containing vinyl copolymer, and a phosphorous-based flame retardant. The recycled polyester resin is recycled polyethylene terephthalate, and is comprised with the amount of 5-35 parts by weight based on 100.0 parts by weight of a base resin consisting of the sum of the rubber-reinforced styrene-based resin, the recycled polyester resin, and the epoxy group containing vinyl copolymer. The impact strength of specimen made of the thermoplastic resin composition at being dropped according to ASTM D3763 is 15-55 J, melt index according to ASTM1238 is 25-40 g/10min, chemical resistance is 1.0-2.0%, and thermal stability(ΔYI) according to ASTM D1925 is 10-20.
Abstract:
Provided is a nonhalogenated flame retardant thermoplastic resin composition which is environment-friendly because of using no halogen-based flame retardant and is safe to a fire. The nonhalogenated flame retardant thermoplastic resin composition comprises 100 parts by weight of a thermoplastic resin; and 0.1-50 parts by weight of a cyclic alkyl phosphonic acid compound or open alkyl phosphonic acid compound represented by the formula 1, wherein R1, R2, R3 and R4 are a C1-C6 alkyl group, a C6-C10 aryl group or an aryl group substituted with an alkyl group; and n is an integer of 0-1. Optionally, the composition comprises further 0-50 parts by weight of an aromatic phosphoric acid ester compound.
Abstract:
Provided is a flame retardant nonhalogenated thermoplastic resin composition which is environmentally friendly by using no halogen-based flame retardant, is excellent in thermal stability and is low in hygroscopicity. The thermoplastic resin composition comprises 100 parts by weight of a thermoplastic resin; and 0.1-50 parts by weight of a carboxy phosphinic acid salt compound represented by the formula 1, wherein R1 is a C1-C6 alkyl group, a C3-C10 cycloalkyl group or a C6-C10 aryl group; R2 is a C1-C6 alkylene group, a C3-C10 cycloalkylene group or a C6-C10 arylene group; M is Al, Zn, Ca or melamine; m and n are an integer of 1-3; and x is an integer for balancing the charge between the metal salt and melamine. Optionally the composition comprises further 50 parts by weight or less of an aromatic phosphate represented by the formula 2, wherein R1, R2 and R3 are independently H or a C1-C4 alkyl group; X is a C6-C20 aryl group or an alkyl-substituted C6-C20 aryl group derived from a dialcohol such as resorcinol, hydroquinol, bisphenol A, etc.; and n is an integer of 0-4.
Abstract:
본 발명에 따른 난연성 폴리올레핀계 수지 조성물은 (A) 에틸렌, 프로필렌, 1-부텐, 1-펜텐 및 1-헥센으로 이루어진 군으로부터 선택된 α올레핀의 단독중합체; 상기 α올레핀과 공중합 가능한 단량체와의 블록공중합체, 랜덤공중합체 및 그라프트공중합체로 이루어진 군으로부터 선택된 공중합체; 또는 상기 단독중합체 및 상기 공중합체의 혼합물;로 이루어진 폴리올레핀계 수지 100 중량부; 및 (B) 옥사포스포란계 화합물 15∼40 중량부; 로 이루어지는 것을 특징으로 한다. 폴리올레핀, 옥사포스포란, 난연성, 충격강도
Abstract:
본 발명의 난연성 열가소성 수지 조성물은 (A) (a 1 ) 고무상 중합체, 방향족 비닐계 단량체, 상기 방향족 비닐계 단량체와 공중합 가능한 단량체, 및 가공성 및 내열성을 부여하는 단량체를 첨가하여 그라프트 중합시켜 얻은 그라프트 공중합체 수지 10∼100 중량%; 및 (a 2 ) 방향족 비닐계 단량체, 상기 방향족 비닐계 단량체와 공중합 가능한 단량체, 및 가공성 및 내열성을 부여하는 단량체를 첨가하여 공중합시켜 얻은 공중합체 수지 0∼90 중량%; 로 이루어진 고무변성 스티렌계 수지 100 중량부; 및 (B) 하기 식으로 표시되는 고리형 알킬 포스포닉산 화합물 0.1∼15 중량부로 이루어지는 것을 특징으로 한다:
(상기 식에서 R 1 , 및 R 2 는 서로 독립적으로 C 1 -C 4 의 알킬기이고 x는 0 또는 1임).
Abstract:
본 발명에 따른 난연성 열가소성 수지 조성물은 (A) 고무강화 폴리스티렌 수지 20∼90 중량부, (B) 폴리페닐렌 에테르 수지 10∼80 중량부, (C) 상기 구성성분 (A)+(B)로 이루어진 기초수지 100 중량부에 대하여, 고리형 알킬 포스포닉산 화합물 0.1∼30 중량부, 및 (D) 상기 구성성분 (A)+(B)로 이루어진 기초수지 100 중량부에 대하여, 방향족 인산 에스테르계 화합물 0∼25 중량부로 이루어지는 것을 특징으로 한다.
Abstract:
PURPOSE: Provided is a flame retardant thermoplastic resin composition which mixes cyclic alkyl phosphonic acid as flame retardant with blend of rubber reinforced polystyrene resin and polyphenylene ether resin so that it shows excellent flame retardancy, with keeping thermal resistance. CONSTITUTION: The flame retardant thermoplastic resin composition comprises the components of: 100wt% of basic resin which is composed of 20-90wt% of rubber reinforced polystyrene resin and 10-80wt% of polyphenylene ether resin; 0.1-30wt% of cyclic alkyl phosphonic acid; and 0-25wt% of aromatic phosphoric ester compound.
Abstract:
PURPOSE: A flame retardant styrene-based resin composition is provided, to improve the environmental friendliness, the flame retardancy, the heat resistance and the mechanical strength. CONSTITUTION: The styrene-based resin composition comprises 40-85 wt% of a rubber-reinforced polystyrene resin; 10-40 wt% of a polyphenylene ether resin; and 5-20 wt% of an organic phosphorus-based compound comprising 30-80 wt% of an oxaphosphorane compound and 20-70 wt% of an aromatic phosphoric ester compound. Preferably the oxaphosphorane compound is represented by the formula 1, wherein R1 is H, an alkyl group of C1-C4 or an aryl group of C6-C10; R2 and R3 are H or an alkyl group of C1-C4; and n is 1-3, and the aromatic phosphoric ester compound is represented by the formula 2, wherein R4, R5 and R6 are independently H, an alkyl group of C1-C4; X is an aryl group of C6-C20 unsubstituted or substituted with an alkyl group and is derived from the dialcohol comprising resorcinol, hydroquinol, bisphenol-A and bisphenol-S; and m is 0-4.
Abstract:
PURPOSE: A flame retardant thermoplastic resin composition is provided, to improve the impact strength and the heat resistance with using a small amount of a flame retardant. CONSTITUTION: The thermoplastic resin composition comprises (A) 40-90 parts by weight of a styrene-based resin comprising (a1) 10-60 wt% of the styrene-containing graft copolymer resin prepared by graft polymerizing 10-60 wt% of a rubber component and (a2) 40-90 wt% of a styrene-acrylonitrile copolymer resin whose acrylonitrile content is 0.5-10 wt%, and 0-20 wt% of a rubber component; (B) 5-60 parts by weight of a polyphenylene ether resin; and (C) 2-30 parts by weight of a cyclic alkyl phosphonic acid compound based on 100 parts by weight of (A)+(B). Preferably the cyclic alkyl phosphonic acid compound is represented by the formula 1, wherein R1 and R2 are independently an alkyl group of C1-C4; and x is 0 or 1.