发明名称 |
DUAL METALLOCENE CATALYSTS FOR POLYMERIZATION OF BIMODAL POLYMERS |
摘要 |
This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridgingη5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridgingη5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.
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申请公布号 |
US2011201770(A1) |
申请公布日期 |
2011.08.18 |
申请号 |
US201113094174 |
申请日期 |
2011.04.26 |
申请人 |
CHEVRON PHILLIPS CHEMICAL COMPANY LP |
发明人 |
YANG QING;JAYARATNE KUMUDINI C.;JENSEN MICHAEL D.;MCDANIEL MAX P.;MARTIN JOEL L.;THORN MATTHEW G.;LANIER JERRY T.;CRAIN TONY R. |
分类号 |
C08F4/76;C08F4/60;C08F4/602 |
主分类号 |
C08F4/76 |
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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