发明授权
- 专利标题: Methods for controlling die swell in dual catalyst olefin polymerization systems
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申请号: US14848405申请日: 2015-09-09
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公开(公告)号: US09650459B2公开(公告)日: 2017-05-16
- 发明人: Jeff F Greco , Qing Yang , Vivek Rohatgi , Mark L. Hlavinka , Jim B Askew
- 申请人: Chevron Phillips Chemical Company LP
- 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: C08F4/653
- IPC分类号: C08F4/653 ; C08F4/6592 ; C08F210/02 ; C08F210/14 ; C08F4/659 ; C08F210/16
摘要:
Methods for controlling the die swell of an olefin polymer produced using a dual catalyst system are disclosed. The die swell of the olefin polymer can be increased or decreased as a function of the catalyst weight ratio and the reactant molar ratio used during the olefin polymerization process.
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