发明名称 |
Metallocene catalyst compositions, processes for making polyolefin resins using such catalyst compositions, and products produced thereby |
摘要 |
A catalyst composition for the polymerization of one or more 1-olefins (e.g., ethylene) comprises a transition metal catalyst precursor and a cocatalyst, the transition metal catalyst precursor comprising a contact product of an unsubstituted metallocene compound and an aluminum alkyl compound in a hydrocarbon solvent solution. In another embodiment, the transition metal catalyst precursor is bimetallic and contains a non-metallocene transition metal catalyst component. When a bimetallic catalyst precursor is used, the resin product exhibits improved properties, and has a bimodal molecular weight distribution, long chain branching (LCB), and good bubble stability.
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申请公布号 |
US2002160908(A1) |
申请公布日期 |
2002.10.31 |
申请号 |
US20020114573 |
申请日期 |
2002.04.01 |
申请人 |
MINK ROBERT IVAN;NOWLIN THOMAS EDWARD;SCHREGENBERGER SANDRA DENISE;SHIRODKAR PRADEEP P.;SCHURZKY KENNETH GEORGE |
发明人 |
MINK ROBERT IVAN;NOWLIN THOMAS EDWARD;SCHREGENBERGER SANDRA DENISE;SHIRODKAR PRADEEP P.;SCHURZKY KENNETH GEORGE |
分类号 |
C08J5/18;B01J31/00;C08F4/642;C08F4/646;C08F4/654;C08F4/6592;C08F10/02;(IPC1-7):B01J31/00 |
主分类号 |
C08J5/18 |
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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