发明名称 |
High-temperature solution process for polyolefin manufacture |
摘要 |
A high-temperature solution process for making polyolefins is disclosed. Olefins polymerize at greater than about 130° C. in the presence of an activator and an organometallic complex. The complex includes a bridged indenoindolyl ligand. One part of the ligand is a second indenoindolyl group or a polymerization-stable, cyclopentadienyl-like group having an extended pi-electron system. Because the catalysts activate quickly and thoroughly, even with low levels of an alumoxane, the invention provides an efficient way to make high-molecular-weight (Mw>100K) polyolefins.
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申请公布号 |
US6756455(B2) |
申请公布日期 |
2004.06.29 |
申请号 |
US20020160797 |
申请日期 |
2002.05.31 |
申请人 |
EQUISTAR CHEMICALS, LP |
发明人 |
NAGY SANDOR;TSUIE BARBARA M.;TODD WILLIAM G.;HOLLAND CHARLES S. |
分类号 |
C08F2/06;C08F4/642;C08F4/659;C08F10/02;C08F110/02;C08F210/02;C08F210/16;(IPC1-7):C08F4/44 |
主分类号 |
C08F2/06 |
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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