发明申请
- 专利标题： DUAL METALLOCENE CATALYSTS FOR POLYMERIZATION OF BIMODAL POLYMERS
- 专利标题（中）： 双金属催化剂用于双模聚合物的聚合
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申请号： US12571824申请日： 2009-10-01
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公开(公告)号： US20100041842A1公开(公告)日： 2010-02-18
- 发明人: Qing Yang , Kumudini C. Jayaratne , Michael D. Jensen , Max P. McDaniel , Joel L. Martin , Matthew G. Thorn , Jerry T. Lanier , Tony R. Crain
- 申请人： Qing Yang , Kumudini C. Jayaratne , Michael D. Jensen , Max P. McDaniel , Joel L. Martin , Matthew G. Thorn , Jerry T. Lanier , Tony R. Crain
- 申请人地址： US TX THE WOODLANDS
- 专利权人： CHEVRON PHILLIPS CHEMICAL COMPANY LP
- 当前专利权人： CHEVRON PHILLIPS CHEMICAL COMPANY LP
- 当前专利权人地址： US TX THE WOODLANDS
- 主分类号： C08F4/54
- IPC分类号： C08F4/54
摘要：
This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging η5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging η5-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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