发明授权
US08476394B2 Polymer resins having improved barrier properties and methods of making same
有权
具有改进的阻挡性能的聚合物树脂及其制备方法
- 专利标题： Polymer resins having improved barrier properties and methods of making same
- 专利标题（中）： 具有改进的阻挡性能的聚合物树脂及其制备方法
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申请号： US12875373申请日： 2010-09-03
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公开(公告)号： US08476394B2公开(公告)日： 2013-07-02
- 发明人: Guylaine St. Jean , Qing Yang , Chung Tso , Max P. McDaniel
- 申请人： Guylaine St. Jean , Qing Yang , Chung Tso , Max P. McDaniel
- 申请人地址： US TX The Woodlands
- 专利权人： Chevron Philips Chemical Company LP
- 当前专利权人： Chevron Philips Chemical Company LP
- 当前专利权人地址： US TX The Woodlands
- 代理机构： Conley Rose, P.C.
- 代理商 Rodney B. Carroll; Cheryl L. Huseman
- 主分类号： C08F210/02
- IPC分类号： C08F210/02 ; C08F210/00
摘要：
A polymeric resin having a lower molecular weight (LMW) component and a higher molecular weight (HMW) component and the resin having a density of from about 0.955 g/cc to about 0.967 g/cc, a melt index of from about 0.5 dg/min to about 4.0 dg/min, and a zero shear viscosity of from about 3.0×103 Pa-s to about 4.0×104 Pa-s. A method comprising providing a catalyst system comprising at least one transition metal complex, an activator support, and a cocatalyst; contacting the catalyst system with an olefin under conditions suitable to form a polyolefin, wherein the polyolefin has a HMW component and a LMW component; and recovering the polyolefin, wherein the polyolefin has a melt index of from about 0.5 dg/min to about 4.0 dg/min, and a zero shear viscosity of from about 3.0×103 Pa-s to about 4.0×104 Pa-s.