发明名称 |
Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects |
摘要 |
The present invention provides polymerization processes utilizing an ansa-metallocene catalyst system for the production of olefin polymers. Polymers produced from the polymerization processes have properties that vary based upon the presence or the absence of hydrogen and/or comonomer in the polymerization process. |
申请公布号 |
US8637616(B2) |
申请公布日期 |
2014.01.28 |
申请号 |
US20100899753 |
申请日期 |
2010.10.07 |
申请人 |
BUCK RICHARD M.;YANG QING;MASINO ALBERT P.;WITTNER CHRISTOPHER E.;CHEVRON PHILIPS CHEMICAL COMPANY LP |
发明人 |
BUCK RICHARD M.;YANG QING;MASINO ALBERT P.;WITTNER CHRISTOPHER E. |
分类号 |
C08F4/6592;C08F4/52;C08F4/6192 |
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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