发明授权
- 专利标题： Resins that yield low haze films and the process for their production
- 专利标题（中）： 产生低雾膜的树脂及其生产工艺
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申请号： US10985175申请日： 2004-11-10
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公开(公告)号： US07199073B2公开(公告)日： 2007-04-03
- 发明人: Joel L. Martin , Elizabeth A. Benham , Mark E. Kertok , Michael D. Jensen , Max P. McDaniel , Gil R. Hawley , Qing Yang , Matthew G. Thorn , Ashish M. Sukhadia
- 申请人： Joel L. Martin , Elizabeth A. Benham , Mark E. Kertok , Michael D. Jensen , Max P. McDaniel , Gil R. Hawley , Qing Yang , Matthew G. Thorn , Ashish M. Sukhadia
- 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
- 主分类号： C08F4/646
- IPC分类号： C08F4/646 ; C08F4/648 ; C08F4/6392
摘要：
Catalyst compositions comprising a first metallocene compound, a second metallocene compound, a third metallocene compound, a chemically-treated solid oxide, and an organoaluminum compound are provided. Methods for preparing and using the catalyst and polyolefins are also provided. The compositions and methods disclosed herein provide ethylene polymers having decreased haze while minimizing impact on other properties, such as dart impact.
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