公开(公告)号：US20140242314A1

公开(公告)日：2014-08-28

申请号：US13778693

申请日：2013-02-27

申请人： CHEVRON PHILLIPS CHEMICAL COMPANY LP

发明人： Yongwoo INN ,  Qing YANG

IPC分类号： C08F210/16 ,  B32B1/08

CPC分类号： C08F210/16 ,  B32B1/08 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F4/65927 ,  C08F2410/04 ,  C08L23/04 ,  Y10T428/1352 ,  Y10T428/139 ,  C08F210/14 ,  C08F2500/01 ,  C08F2500/02 ,  C08F2500/04 ,  C08F2500/05 ,  C08F2500/09 ,  C08F2500/10 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/26 ,  C08F10/00 ,  C08F4/65904

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.

摘要翻译： 茂金属催化的聚合物，其包含（i）较高分子量组分和（ii）较低分子量组分，其中所述聚合物具有约10至约26的多分散指数; 在约5×10 5 Pa·s至约2×10 14 Pa·s的剪切粘度为零，剪切速率为约1.5s-的剪切粘度为约20kPa至约85kPa的平滑过渡临界应力， 1至约17s-1。 双茂金属催化聚乙烯，其包含（i）较高分子量组分和（ii）较低分子量组分，其中所述聚合物具有约10至约26的多分散指数; 约剪切粘度为约5×10 5 Pa·s至约2×10 14 Pa·s，剪切速率为约1.5s -1的平滑至无光泽的过渡应力为约20kPa至约85kPa 至约17s-1。

公开(公告)号：US20180298129A1

公开(公告)日：2018-10-18

申请号：US15981489

申请日：2018-05-16

申请人： Chevron Phillips Chemical Company LP

发明人： Chung TSO ,  Carlos A. CRUZ ,  Qing YANG ,  Max P. MCDANIEL ,  Jared L. BARR ,  Youlu YU ,  Yongwoo INN ,  Ashish M. SUKHADIA ,  Brandy RUTLEDGE-RYAL ,  Daniel G. HERT ,  Kelly FREY ,  Bill BRIDENDOLPH ,  William FISHER

IPC分类号： C08F210/16 ,  B32B27/32 ,  B32B37/15 ,  C08J7/04 ,  C09D123/08 ,  B32B7/00 ,  C08F210/14

CPC分类号： C08F210/16 ,  B29C47/0004 ,  B29C47/025 ,  B29C47/92 ,  B29C2947/92019 ,  B29C2947/92209 ,  B29D7/01 ,  B32B7/005 ,  B32B27/32 ,  B32B27/327 ,  B32B37/153 ,  B32B2250/02 ,  B32B2307/72 ,  B32B2323/046 ,  C08F10/02 ,  C08F210/14 ,  C08F2500/09 ,  C08F2500/10 ,  C08F2500/26 ,  C08J5/18 ,  C08J7/047 ,  C08J2323/20 ,  C09D123/0815

摘要： A polyolefin having a density of greater than about 0.930 g/ml which when extruded at a temperature in the range of from about 590° F. to about 645° F. and then coated onto a substrate at a rate of from about 300 ft/min to about 1000 ft/min has an edge weave of from about 0 in/side to about 2.5 in/side and a neck-in of less than about 3.0 in/side.

公开(公告)号：US20170199110A1

公开(公告)日：2017-07-13

申请号：US15471414

申请日：2017-03-28

申请人： Chevron Phillips Chemical Company LP

发明人： Youlu YU ,  Qing YANG ,  Paul J. DESLAURIERS ,  Mark J. LAMBORN ,  Yongwoo INN

IPC分类号： G01N11/04 ,  G01N5/00

CPC分类号： G01N5/00 ,  C08F110/02 ,  C08J5/18 ,  C08J2323/06 ,  C08J2323/08 ,  C08L23/06 ,  G01N11/00 ,  G01N11/06 ,  G01N33/442

摘要： A method of preparing a polymer article comprising determining a zero-shear viscosity for a polymer sample; sieving the polymer sample to produce a plurality of sieved polymer samples; determining a molecular weight distribution for each of the plurality of sieved polymer samples; determining a zero-shear viscosity for each of the plurality of sieved polymer samples; determining a compositional diversity of each of the plurality of sieved polymer samples based on a ratio of the zero shear viscosity for each of the plurality of sieved polymer samples to the zero shear viscosity for the polymer sample; identifying a polymer sample having a ratio of the zero shear viscosity to zero shear viscosity for the polymer sample of from about 0.5 to equal to or greater than about 3; and preparing a polymer article from the identified polymer sample.