OLEFINIC COPOLYMER AND PROCESS FOR PREPARING SAME

• Main Authors: HAN, Ki Won, LEE, Eun Jung, LEE, Choong Hoon, HAN, Hyo Jung, KIM, Seul Ki, JANG, Jae Kwon, PARK, In Sung
• Format: Patent
• Language: English; French; Korean
• Published: 29.03.2018
• Subjects: 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

The present invention relates to an olefinic copolymer having novel crystal properties and enabling the provision of a molded article with further improved strength and impact strength when compounded with other resins, and a process for preparing the same. The olefinic copolymer is an olefinic copolymer comprising an ethylene repeating unit and an α-olefinic repeating unit. The olefinic copolymer comprises polymer fractions defined by three different peaks at a predetermined temperature when analyzed by cross-fractionation chromatography. La présente invention concerne un copolymère oléfinique présentant de nouvelles propriétés cristallines et permettant de doter un article moulé d'une résistance et d'une résistance aux chocs améliorées lorsque celui-ci est mélangé à d'autres résines, et son procédé de préparation. Le copolymère oléfinique consiste en un copolymère oléfinique comprenant un motif répété d'éthylène et un motif répété α-oléfinique. Le copolymère oléfinique comprend des fractions polymères définies par trois crêtes différentes à une température prédéfinie lors d'une analyse par chromatographie de fractionnement croisé. 본 발명은 신규한 결정 특성을 가지며, 다른 수지와와 컴파운딩시 등에 있어 강도 및 충격 강도가 보다 향상된 성형품의 제공을 가능케 하는 을레핀계 공중합체 및 이의 제조 방법에 관한 것이다. 상기 올레핀계 공중합체는 에틸렌 반복 단위와, α -올레핀계 반복 단위를 포함한 올레핀계 공중합체로서, 이를 크로스 분별 크로마토그래피로 분석하였을 때, 소정의 온도에서 서로 다른 3개의 피크로 정의되는 고분자 분획들을 포함하는 것이다.