Sk Innovation Co., Ltd.

Sk Global Chemical Co., Ltd.

Sk Energy Co., Ltd.

Sabic Sk Nexlene Company Pte. Ltd.

Jae Ho Jung

Myung Ahn Ok

SAng Hyeon Kang

Sung Seok Chae

Taek Kyu Han

Jong Sok Hahn

Tae Woo Woo

Sang Ook Kang

Disclosed herein is a method of preparing 1-octene at high activity and high selectivity while stably maintaining reaction activity by tetramerizing ethylene using a chromium-based catalyst system comprising a transition metal or a transition metal precursor, a cocatalyst, and a P&#x2014;C&#x2014;C&#x2014;P backbone structure ligand represented by (R)(R)P&#x2014;(R)CHCH(R)&#x2014;P(R)(R).

Ethylene tetramerization catalyst system and method for preparing 1-octene using the same

Ethylene tetramerization catalyst systems and method for preparing 1-octene using the same

Disclosed is a homogeneous catalyst system for producing an ethylene homopolymer or an ethylene copolymer with &#x3b1;-olefin. Specifically, this invention pertains to a transition metal catalyst which has stability under high temperature solution polymerization at 120&#x2dc;250&#xb0; C., in which a cyclopentadiene derivative and an electron donating substituent, both of which are bonded to a Group IV transition metal acting as a central metal, are crosslinked through a silyl derivative substituted with a cyclohexyl, to a catalyst system including such a transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst, and to a method of producing an ethylene homopolymer or an ethylene copolymer with &#x3b1;-olefin, having high molecular weight, using the catalyst system under conditions of high-temperature solution polymerization. The catalyst according to this invention has excellent thermal stability and compatibility with a paraffin hydrocarbon solvent and thus is effective in the production of an ethylene homopolymer or an ethylene copolymer with &#x3b1;-olefin having various properties in commercial polymerization processes.

Homogeneous catalyst system for producing ethylene homopolymer or ethylene copolymers with alpha-olefins

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Incheon, South Korea

Jae Ho Jung