发明申请
- 专利标题： Bimodal Pipe Resin and Products Made Therefrom
- 专利标题（中）： 双模管树脂及其制造的产品
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申请号： US12777553申请日： 2010-05-11
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公开(公告)号： US20100267909A1公开(公告)日： 2010-10-21
- 发明人: Tim Coffy , Steven Gray , David Knoeppel , Cyril Chevillard , David Rauscher , Carlos Corleto , Gerhard Guenther , Brian B. Cole , Stan Biesert , Vincent Barre , Ruby L. Curtis , Son Nguyen , Danielle Childress
- 申请人： Tim Coffy , Steven Gray , David Knoeppel , Cyril Chevillard , David Rauscher , Carlos Corleto , Gerhard Guenther , Brian B. Cole , Stan Biesert , Vincent Barre , Ruby L. Curtis , Son Nguyen , Danielle Childress
- 申请人地址： US TX Houston
- 专利权人： Fina Technology, Inc.
- 当前专利权人： Fina Technology, Inc.
- 当前专利权人地址： US TX Houston
- 主分类号： C08F4/50
- IPC分类号： C08F4/50 ; C08F110/02 ; C08F4/42
摘要：
Disclosed is a bimodal Ziegler-Natta catalyzed polyethylene, having a density of from 0.930 g/cc to 0.960 g/cc, and a molecular weight distribution of from 10 to 25, wherein an article formed therefrom has a PENT of at least 1500. Also disclosed is a method of preparing a tubular article including obtaining a bimodal polyethylene having a density of from 0.930 g/cc to 0.960 g/cc and a molecular weight distribution of from 10 to 25, and processing the polyethylene under conditions where a specific energy input (SEI) is less than 300 kW·h/ton, and wherein the article has a PENT of at least 1500. Further disclosed is a method for controlling the degradation of polyethylene including polymerizing ethylene monomer, recovering polyethylene, extruding the polyethylene, and controlling the degradation of polyethylene by measuring the SEI to the extruder and adjusting throughput and/or gear suction pressure keep SEI less than 300 kW·h/ton, and forming an article.
公开/授权文献
- US08110644B2 Bimodal pipe resin and products made therefrom 公开/授权日：2012-02-07