| 发明名称 | Polymer resins with improved processability and melt fracture characteristics | ||
| 摘要 | A metallocene-catalyzed polymer comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5×105 Pa·s to about 2×1014 Pa·s and a smooth-to-matte transition critical stress of from about 20 kPa to about 85 kPa at a shear rate of from about 1.5 s−1 to about 17 s−1. A dual metallocene catalyzed polyethylene comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5×105 Pa·s to about 2×1014 Pa·s and a smooth-to-matte transition stress of from about 20 kPa to about 85 kPa at a shear rate of from about 1.5 s−1 to about 17 s−1. | ||
| 申请公布号 | US8815357(B1) | 申请公布日期 | 2014.08.26 |
| 申请号 | US201313778693 | 申请日期 | 2013.02.27 |
| 申请人 | Chevron Phillips Chemical Company LP | 发明人 | Inn Yongwoo;Yang Qing |
| 分类号 | B29D22/00;C08F10/00;C08F10/02;B32B1/08 | 主分类号 | B29D22/00 |
| 代理机构 | Conley Rose, P.C. | 代理人 | Conley Rose, P.C. ;Carroll Rodney B.;Huseman Cheryl L. |
| 主权项 | 1. A metallocene-catalyzed polymer comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5×105 Pa·s to about 2×1014 Pa·s and a smooth-to-matte transition critical stress of from about 20 kPa to about 85 kPa at a shear rate of from about 1.5 s−1 to about 17 s−1. | ||
| 地址 | The Woodlands TX US | ||