Invention Grant
US07666959B2 Dual site catalyst system comprising a hafnocene component for the production of bimodal polyolefins in a single reactor
失效
双重位点催化剂体系，其包含用于在单个反应器中生产双峰聚烯烃的茂金属组分
- Patent Title: Dual site catalyst system comprising a hafnocene component for the production of bimodal polyolefins in a single reactor
- Patent Title (中): 双重位点催化剂体系，其包含用于在单个反应器中生产双峰聚烯烃的茂金属组分
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Application No.: US10529249Application Date: 2003-09-24
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Publication No.: US07666959B2Publication Date: 2010-02-23
- Inventor: Abbas Razavi
- Applicant: Abbas Razavi
- Applicant Address: BE Feluy
- Assignee: Total Petrochemicals Research Feluy
- Current Assignee: Total Petrochemicals Research Feluy
- Current Assignee Address: BE Feluy
- Agent Diane L. Kilpatrick-Lee
- Priority: EP02079063 20020927
- International Application: PCT/EP03/10712 WO 20030924
- International Announcement: WO2004/029101 WO 20040408
- Main IPC: C08F4/70
- IPC: C08F4/70 ; C08F4/76 ; B01J31/28 ; B01J31/38
Abstract:
The present invention discloses a metallocene catalyst system for producing polyolefins comprising: A. a hafnocene-based catalyst component suitable for producing the high molecular weight fraction of the polyolefin; B. one or more metallocene or post-metallocene components different from the component A and suitable for producing the low molecular weight fraction of the polyolefin; C. an activating agent having a low or no coordinating capability.
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