发明名称 |
HOCHTEMPERATURE OLEFIN POLYMERISATIONSVERFAHREN |
摘要 |
<p>This invention is a solution process for the preparation of high molecular weight ethylene- alpha -olefin-diolefin copolymers comprising contacting ethylene, one or more alpha -olefin monomers, and optionally one or more diene monomers, with a catalyst system at a polymerization temperature at or above about 80 DEG C, ethylene, one or more alpha -olefin monomers, and optionally one or more diene monomers, with a catalyst system comprising an unbridged Group 4 metal compound having a bulky monocyclopentadienyl ligand, a uninegative bulky Group 15 ligand and two uninegative, activation reactive ligands and a catalyst activator compound. The process can be advantageously practiced at a reaction temperature of at least 80 DEG C, most preferably above 100 DEG C, to achieve high number average molecular weight polymer having high alpha -olefin monomer and diene monomer contents with high diene conversion rates. The process is particularly suitable for the preparation of elastomeric ethylene-propylene or ethylene-propylene-diene monomer elastomers.</p> |
申请公布号 |
DE69619548(D1) |
申请公布日期 |
2002.04.04 |
申请号 |
DE1996619548 |
申请日期 |
1996.12.18 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC., BAYTOWN |
发明人 |
TURNER, W.;SPEED, S.;FOLIE, J.;CROWTHER, J.;WALZER, F.;FISHER, A.;VAUGHAN, GEORGE A. |
分类号 |
C08F4/642;C08F2/06;C08F4/606;C08F4/645;C08F4/659;C08F4/6592;C08F10/00;C08F38/00;C08F38/02;C08F210/16;C08F210/18;(IPC1-7):C08F10/00 |
主分类号 |
C08F4/642 |
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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