发明授权
US07119153B2 Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength
有权
双茂金属催化剂用于生产膜机械方向（MD）埃尔门多尔撕裂强度
- 专利标题： Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength
- 专利标题（中）： 双茂金属催化剂用于生产膜机械方向（MD）埃尔门多尔撕裂强度
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申请号： US10762056申请日： 2004-01-21
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公开(公告)号： US07119153B2公开(公告)日： 2006-10-10
- 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
- 代理机构： Womble Carlyle Sandridge & Rice, PLLC
- 主分类号： C08F4/06
- IPC分类号： C08F4/06 ; C08F4/44 ; C08F4/76 ; B01J31/38
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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