发明名称 |
TRANSITION METAL CATALYTIC SYSTEMS AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND .ALPH.-OLEFINS USING THE SAME |
摘要 |
Provided are transition metal catalytic systems for preparing ethylene homopolymers or copolymers of ethylene with a-olefins. More specifically, provided are Group 4 transition metal catalysts, which is characterized in that the catalyst comprises around the Group 4 transition metal a cyclopentadiene derivative, and at least one aryloxide ligand(s) having a fluorenyl group or a derivative thereof (which is ready to be substituted at 9-position) that functions as an electron donor and serves to stabilize the catalytic system by surrounding an oxygen atom that links the ligand to the transition metal at ortho-position, and there is no cross-linkage between the ligands; catalytic systems comprising such transition metal catalyst and aluminoxane co- catalyst or boron compound cocatalyst; and processes for preparing ethylene homopolymers or copolymers of ethylene with a-olefins by using the same. |
申请公布号 |
CA2723960(A1) |
申请公布日期 |
2010.04.01 |
申请号 |
CA20092723960 |
申请日期 |
2009.09.23 |
申请人 |
SK ENERGY, CO., LTD. |
发明人 |
OK, MYUNGAHN;SHIN, DONGCHEOL;JEONG, JISU;LEE, HOSEONG;HAHN, JONGSOK;SHIM, CHOONSIK |
分类号 |
C07F7/28;B01J31/38;C08F4/6592;C08F210/16 |
主分类号 |
C07F7/28 |
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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