发明名称 |
ADVANCED TRANSITION METAL CATALYTIC SYSTEMS IN TERMS OF COMONOMER INCORPORATIONS AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND A-OLEFINS USING THE SAME |
摘要 |
Provided is a homogeneous catalytic system for use in preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, and more particularly a Group 4 transition metal compound in which a cyclopentadienyl derivative 3,4-positions of which are substituted with alkyls and an electron-donating substituent are crosslinked around a Group 4 transition metal. Also provided is a method of preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, having high molecular weight, under high-temperature solution polymerization conditions using the catalytic system including such a transition metal compound and a co-catalyst composed of an aluminum compound, a boron compound or a mixture thereof. The catalyst according to present invention has high thermal stability and enables the incorporation of α-olefin, and is thus effective in preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, having various properties, in industrial polymerization processes. |
申请公布号 |
US2012329965(A1) |
申请公布日期 |
2012.12.27 |
申请号 |
US201113167997 |
申请日期 |
2011.06.24 |
申请人 |
LEE HOSEONG;HAHN JONGSOK;SHIN DONGCHEOL;LEE HYOSUN;WU CHUNJI;SK INNOVATION CO., LTD. |
发明人 |
LEE HOSEONG;HAHN JONGSOK;SHIN DONGCHEOL;LEE HYOSUN;WU CHUNJI |
分类号 |
C08F4/6592;C07F17/00;C08F4/76;C08F210/02;C08F210/06;C08F210/08;C08F210/14 |
主分类号 |
C08F4/6592 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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