发明授权
- 专利标题： Polymerization process and control of polymer composition properties
- 专利标题（中）： 聚合过程和聚合物组合物性质的控制
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申请号： US10685607申请日： 2003-10-15
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公开(公告)号： US07238756B2公开(公告)日： 2007-07-03
- 发明人: Fred D. Ehrman , Pradeep P. Shirodkar , Mark Bradley Davis , Daniel P. Zilker, Jr. , Porter C. Shannon
- 申请人： Fred D. Ehrman , Pradeep P. Shirodkar , Mark Bradley Davis , Daniel P. Zilker, Jr. , Porter C. Shannon
- 申请人地址： US TX Houston
- 专利权人： Univation Technologies, LLC
- 当前专利权人： Univation Technologies, LLC
- 当前专利权人地址： US TX Houston
- 代理商 Kevin M. Faulkner; Leandro Arechederra, III
- 主分类号： C08F4/6392
- IPC分类号： C08F4/6392 ; C08F4/6592
摘要：
Methods of controlling the flow index and/or molecular weight split of a polymer composition are disclosed. The method of producing a polymer composition in one embodiment comprises incorporating a high molecular weight polymer into a low molecular weight polymer to form the polymer composition in a single polymerization reactor in the presence of polymerizable monomers, a bimetallic catalyst composition and at least one control agent; wherein the control agent is added in an amount sufficient to control the level of incorporation of the high molecular weight polymer, the level of low molecular weight polymer, or both. Examples of control agents include alcohols, ethers, amines and oxygen.
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