Invention Grant
- Patent Title: Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor
- Patent Title (中): 使用清除氢的催化剂来控制聚合反应器中的聚合物分子量和氢含量
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Application No.: US13488578Application Date: 2012-06-05
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Publication No.: US08501654B2Publication Date: 2013-08-06
- Inventor: Rex E. Murray , William B. Beaulieu , Qing Yang , Errun Ding , Gary L. Glass , Alan L. Solenberger , Steven J. Secora
- Applicant: Rex E. Murray , William B. Beaulieu , Qing Yang , Errun Ding , Gary L. Glass , Alan L. Solenberger , Steven J. Secora
- Applicant Address: US TX The Woodlands
- Assignee: Chevron Philips Chemical Company LP
- Current Assignee: Chevron Philips Chemical Company LP
- Current Assignee Address: US TX The Woodlands
- Agency: Merchant & Gould P.C.
- Main IPC: C08F4/642
- IPC: C08F4/642 ; C08F4/643 ; C08F4/6592 ; B01J31/22
Abstract:
The present invention provides dual catalyst systems containing a metallocene catalyst and a hydrogen scavenging catalyst, and polymerization processes employing these dual catalyst systems. Due to a reduction in hydrogen levels in the polymerization processes, olefin polymers produced from these polymerization processes may have a higher molecular weight, a lower melt index, and higher levels of unsaturation.
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