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公开(公告)号:US20130059982A1
公开(公告)日:2013-03-07
申请号:US13599290
申请日:2012-08-30
申请人: Youlu YU , Chung C. TSO , David C. ROHLFING , Paul J. DESLAURIERS , Melvin HILDEBRAND , Max P. MCDANIEL , Qing YANG
发明人: Youlu YU , Chung C. TSO , David C. ROHLFING , Paul J. DESLAURIERS , Melvin HILDEBRAND , Max P. MCDANIEL , Qing YANG
IPC分类号: C08F110/02 , C08F6/00 , C08F8/06
CPC分类号: C08L23/06 , C08F6/04 , C08L2205/025 , C08L2207/07 , C08L2308/00 , C08L2314/02 , C08F110/02 , C08F2500/04 , C08F2500/09
摘要: A composition comprising a polyethylene wherein the composition is enriched in polymer molecules having topological variations by an enrichment factor ω and wherein the composition displays a long chain branching frequency of greater than about 0.5 long chain branches per 1000 total carbon atoms. A composition comprising an isolated Ziegler-catalyzed polyethylene having a long chain branching frequency of greater than about 0.5 long chain branches per 1000 total carbon atoms at the high molecular weight end.
摘要翻译: 一种包含聚乙烯的组合物,其中所述组合物富集具有通过富集因子ω的拓扑变化的聚合物分子,并且其中所述组合物显示每1000个总碳原子大于约0.5个长链分支的长链支化频率。 包含分子齐格勒催化的聚乙烯的组合物,其在高分子量末端的每1000个总碳原子具有大于约0.5个长链支链的长链支化频率。
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公开(公告)号:US20120214954A1
公开(公告)日:2012-08-23
申请号:US13031451
申请日:2011-02-21
申请人: Richard M. BUCK , Albert P. MASINO , Qing YANG , Paul J. DESLAURIERS , Steven J. SECORA , Elizabeth M. LANIER , Guylaine ST. JEAN , Jon D. RATZLAFF , Christopher E. WITTNER
发明人: Richard M. BUCK , Albert P. MASINO , Qing YANG , Paul J. DESLAURIERS , Steven J. SECORA , Elizabeth M. LANIER , Guylaine ST. JEAN , Jon D. RATZLAFF , Christopher E. WITTNER
IPC分类号: C08F210/02 , C08F4/42 , B29C41/04 , C08F210/14
CPC分类号: C08L23/0815 , B29C41/003 , B29C41/04 , C08F4/6592 , C08L2205/025 , C08L2207/062 , C08L2308/00 , C08L2314/06 , C08L2666/06 , C08F110/02 , C08F2500/04 , C08F2500/09 , C08F4/65904
摘要: A polymer having a density of from about 0.94 g/cm3 to about 0.96 g/cm3 and a primary structure parameter 2 (PSP2 value) of greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of equal to or greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A. A polymer having at least one lower molecular weight component and at least one higher molecular weight component and having a PSP2 value of equal to or greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A.
摘要翻译: 密度为约0.94g / cm 3至约0.96g / cm 3,一次结构参数2(PSP2值)大于约8.5的聚合物,其中由聚合物形成的制品具有等于 或根据ASTM D1693条件A测量时大于约1000小时。具有至少一种较低分子量组分和至少一种较高分子量组分并且PSP2值等于或大于约8.5的聚合物,其中 根据ASTM D 1693条件A测量时,由聚合物形成的制品具有大于约1000小时的环境应力抗裂性。
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