发明授权
US07572875B2 Ethylene homopolymers or copolymers having good machine direction (MD) elmendorf tear strength
有权
具有良好机器方向（MD）埃尔门多夫撕裂强度的乙烯均聚物或共聚物
- 专利标题： Ethylene homopolymers or copolymers having good machine direction (MD) elmendorf tear strength
- 专利标题（中）： 具有良好机器方向（MD）埃尔门多夫撕裂强度的乙烯均聚物或共聚物
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申请号： US11446917申请日： 2006-06-05
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公开(公告)号： US07572875B2公开(公告)日： 2009-08-11
- 发明人: Michael D. Jensen , Joel L. Martin , Max P. McDaniel , Qing Yang , Matthew G. Thorn , Elizabeth A. Benham , Ted H. Cymbaluk , Ashish M. Sukhadia , Rajendra K. Krishnaswamy , Mark E. Kertok
- 申请人： Michael D. Jensen , Joel L. Martin , Max P. McDaniel , Qing Yang , Matthew G. Thorn , Elizabeth A. Benham , Ted H. Cymbaluk , Ashish M. Sukhadia , Rajendra K. Krishnaswamy , Mark E. Kertok
- 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
- 代理机构： Merchant & Gould, P.C.
- 主分类号： C08F10/02
- IPC分类号： C08F10/02 ; C08F210/16
摘要：
This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use the catalyst compositions and new polyolefins. The compositions and methods disclosed herein provide ethylene polymers and copolymers with lower MI, increased melt strength, and good MD tear properties.
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