METALLOCENE SUPPORTED CATALYST COMPOSITION FOR OLEFIN POLYMERIZATION AND METHOD FOR PREPARING THE SAME

• Main Authors: KIM HAG JUN, MOON SEO HYUN, KO YOUNG SOO, KIM WOOKDONG, CLINTON MANIANGLUNG, SEHWAN KIM, YOON YEOKWON, YANG DAAE, CHUNG SANGCHUL
• Format: Patent
• Language: English; Korean
• Published: 17.11.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A first aspect of the present invention provides a metallocene-supported catalyst composition for olefin polymerization comprising a metallocene compound, an aluminum organometallic compound, a boron compound, a catalyst support, and polyethyleneimine (PEI). A second aspect of the present invention provides a method for preparing a metallocene-supported catalyst for olefin polymerization in which a metallocene compound, an aluminum organometallic compound, a boron compound, and polyethyleneimine are supported in catalyst support. A third aspect of the present invention provides a method for manufacturing polyolefin, which includes a step of homopolymerizing or copolymerizing olefin using a metallocene-supported catalyst for olefin polymerization in which a metallocene compound, an aluminum organometallic compound, a boron compound, and polyethyleneimine are supported on a catalyst support. Polymers with better mechanical properties and distribution of molecular weight can be acquired by enhancing copolymerization properties. 본 발명의 제1 양태는 메탈로센 화합물, 알루미늄유기금속 화합물, 보론 화합물, 촉매 담지체 및 폴리에틸렌이민(polyethyleneimine; PEI)을 포함하는 올레핀 중합용 메탈로센 담지 촉매 조성물을 제공한다. 본 발명의 제2 양태는 촉매 담지체에 메탈로센 화합물, 알루미늄유기금속 화합물, 보론 화합물 및 폴리에틸렌이민이 담지된 올레핀 중합용 메탈로센 담지 촉매의 제조 방법을 제공한다. 본 발명의 제3 양태는 촉매 담지체에 메탈로센 화합물, 알루미늄유기금속 화합물, 보론 화합물 및 폴리에틸렌이민이 담지된 올레핀 중합용 메탈로센 담지 촉매를 사용하여, 올레핀을 단일중합 또는 공중합시키는 단계를 포함하는 것이 특징인 폴리올레핀의 제조 방법을 제공한다.