ETHYLENE PROPYLENE IMPACT COPOLYMERS

Disclosed are an ethylene propylene block copolymer resin composition capable of satisfying both impact strength and transparency and a molded article manufactured therefrom. The present invention provides an ethylene propylene block copolymer resin composition which step-polymerizes ethylene propyl...

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Bibliographische Detailangaben
Hauptverfasser:	CHO, JIN JU, KIM, EUN JIN, YOON, SUNG TAEK, KIM, MIN KYU
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Disclosed are an ethylene propylene block copolymer resin composition capable of satisfying both impact strength and transparency and a molded article manufactured therefrom. The present invention provides an ethylene propylene block copolymer resin composition which step-polymerizes ethylene propylene rubber (EPR) comprising (a) 85-95 wt% of a crystalline propylene homopolymer and (b) 40-70 wt% of ethylene in a reactor, and a molded article manufactured therefrom. 충격강도와 투명성을 모두 만족시킬 수 있는 에틸렌 프로필렌 블록 공중합체 수지 조성물과 이로부터 제조되는 성형품이 개시된다. 본 발명은 (a) 결정성 프로필렌 단독 중합체 85~95중량% 및 (b) 40~70중량%의 에틸렌을 포함하는 무정형 에틸렌 프로필렌 고무(EPR; Ethylene propylene rubber) 5~15중량%가 반응기 내에서 단계적으로 중합된 에틸렌 프로필렌 블록 공중합체 수지 조성물과 이로부터 제조되는 성형품을 제공한다.