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1. 发明公开

EP1831303A2 RHEOLOGY MODIFIED POLYETHYLENE COMPOSITIONS 有权转让
标题翻译：溶血性聚乙烯松香麻黄素
公开(公告)号：EP1831303A2
公开(公告)日：2007-09-12
申请号：EP05853539.4
申请日：2005-12-09
申请人： Dow Global Technologies Inc. , Michie, William J. Jr. , Hogan, Todd A. , Martinez, Felipe F. , Neubauer, Anthony C. , Costeux, Stéphane , Chang, Dane , Kapur, Mridula
发明人： Dow Global Technologies Inc. , Michie, William J. Jr. , Hogan, Todd A. , Martinez, Felipe F. , Neubauer, Anthony C. , Costeux, Stéphane , Chang, Dane , Kapur, Mridula
IPC分类号： C08L23/04 , C08K5/43
CPC分类号： C08K5/43 , C08L23/0807 , C08L2205/02 , Y10T428/1352 , Y10T428/139 , C08L23/08 , C08L2666/06
摘要： A polymer composition comprises a low-molecular-weight (LMW) ethylene polymer component and a high-molecular-weight (HMW) ethylene polymer component coupled with a polysulfonyl azide. Preferably, the LMW polyethylene component and the HMW polyethylene component co-crystallize in the composition such that it exhibits a single or substantially single peak in a lamella thickness distribution (LTD) curve. The ethylene polymer for the LMW and the HMW polyethylene components can be either homopolymer or ethylene copolymer. Preferably, both components are an ethylene copolymer of the same, or different, composition (that is, with the same or different comonomers). A method of making a pipe that includes selecting a polymer composition having a substantially single peak in the LTD curve is described. Compositions comprising a chromium-catalyzed ethylene polymer, coupled with a polysulfonyl azide are also described herein.

2. 发明公开

EP2794679A1 A POLYETHYLENE COMPOSITION AND ARTICLES MADE THEREFROM 有权转让
标题翻译： NEAR POLYETHYLENZUSAMMENSETZUNG UND DARAUS HERGESTELLTE ARTIKEL
公开(公告)号：EP2794679A1
公开(公告)日：2014-10-29
申请号：EP12799677.5
申请日：2012-11-28
申请人： Dow Global Technologies LLC , Michie, William J., Jr. , Wright, Dale A. , Jorgensen, Robert J. , Baker, Carl F.
发明人： MICHIE, William, J., Jr. , WRIGHT, Dale, A. , JORGENSEN, Robert, J. , BAKER, Carl, F.
IPC分类号： C08F10/00
CPC分类号： C08J9/16 , C08F10/02 , C08F110/02 , Y10T428/1372 , Y10T428/2982 , C08F10/00 , C08F4/69 , C08F4/025 , C08F2500/07 , C08F2500/12 , C08F2500/18 , C08F2500/24
摘要： A polyethylene composition comprising a granular polyethylene resin characterized by a resin solid density of from 0.91 to 0.97 g/cm
3 , a ratio of intraparticle void volume to interparticle void volume of from 0.33 to 0.67, and a total resin porosity, Φtotal, of equal to or greater than 0.45 is provided. Further provided are articles made from the polyethylene composition
摘要翻译：一种聚乙烯组合物，其包含颗粒状聚乙烯树脂，其特征在于树脂固体密度为0.91至0.97g / cm 3，颗粒内空隙体积与颗粒间隙体积之比为0.33至0.67，总树脂孔隙率Φtotal等于或大于0.45。进一步提供由聚乙烯组合物制成的制品

3. 发明申请

WO2013095877A8 A POLYETHYLENE COMPOSITION AND ARTICLES MADE THEREFROM 审中-公开
标题翻译：聚乙烯组合物及其制品
公开(公告)号：WO2013095877A8
公开(公告)日：2014-05-30
申请号：PCT/US2012066736
申请日：2012-11-28
申请人： DOW GLOBAL TECHNOLOGIES LLC , MICHIE WILLIAM J JR , WRIGHT DALE A , JORGENSEN ROBERT J , BAKER CARL F , WAGNER BURKHARD E , GARRETT JOE B JR , MILLS MATTHEW H
发明人： MICHIE WILLIAM J JR , WRIGHT DALE A , JORGENSEN ROBERT J , BAKER CARL F , WAGNER BURKHARD E , GARRETT JOE B JR , MILLS MATTHEW H
IPC分类号： C08F10/00
CPC分类号： C08J9/16 , C08F10/02 , C08F110/02 , Y10T428/1372 , Y10T428/2982 , C08F10/00 , C08F4/69 , C08F4/025 , C08F2500/07 , C08F2500/12 , C08F2500/18 , C08F2500/24
摘要： A polyethylene composition comprising a granular polyethylene resin characterized by a resin solid density of from 0.91 to 0.97 g/cm3, a ratio of intraparticle void volume to interparticle void volume of from 0.33 to 0.67, and a total resin porosity, Φtotal, of equal to or greater than 0.45 is provided. Further provided are articles made from the polyethylene composition.
摘要翻译：一种聚乙烯组合物，其包含颗粒状聚乙烯树脂，其特征在于树脂固体密度为0.91至0.97g / cm 3，颗粒内空隙体积与颗粒间隙体积之比为0.33至0.67，总树脂孔隙率Φtotal等于或大于0.45。进一步提供由聚乙烯组合物制成的制品。

4. 发明申请

WO2010006097A1 POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, FIBERS MADE THEREFROM, AND METHOD OF MAKING THE SAME 审中-公开
标题翻译：聚乙烯组合物，其制造方法，其制造的纤维及其制造方法
公开(公告)号：WO2010006097A1
公开(公告)日：2010-01-14
申请号：PCT/US2009/050003
申请日：2009-07-09
申请人： DOW GLOBAL TECHNOLOGIES INC. , PEPPER, Randy, E. , KAPUR, Mridula , CLAASEN, Gert, J. , KNICKERBOCKER, Edward, N. , WIKER, Nathan, J. , MICHIE, William, J., Jr. , DAVIS, Mark, B.
发明人： PEPPER, Randy, E. , KAPUR, Mridula , CLAASEN, Gert, J. , KNICKERBOCKER, Edward, N. , WIKER, Nathan, J. , MICHIE, William, J., Jr. , DAVIS, Mark, B.
IPC分类号： C08L23/04 , D01F6/04 , D01F6/46 , D04H1/00
CPC分类号： D01F6/30 , C08F210/02 , C08L23/04 , C08L23/0815 , C08L2205/02 , C08L2205/16 , C08L2314/06 , D01D5/08 , D01D5/10 , D01D5/12 , D01D10/02 , D01F6/04 , D04H1/56 , D04H3/007 , D04H3/16 , Y10T428/249921 , Y10T442/30 , Y10T442/3976 , Y10T442/60 , C08L2666/06
摘要： The instant invention is a polyethylene composition, method of producing the same, fibers made therefrom, and method of making the same. The polyethylene composition according to instant invention comprises: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers. The polyethylene composition according to instant invention has a density in the range of 0.920 to 0.970 g/cm 3 , a molecular weight distribution (M w /M n ) in the range of 1.70 to 3.5, a melt index (I 2 ) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (M z /M w ) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition. The process for producing the inventive polyethylene composition comprises the steps of: (1) (co)polymerizing ethylene and optionally one or more α- olefin comonomers in the presence of a hafnium based metallocene catalyst via a gas phase (co)polymerization process in a single stage reactor; and (2) thereby producing the polyethylene composition having a density in the range of 0.920 to 0.970 g/cm3, a molecular weight distribution (M w /M n ) in the range of 1.70 to 3.5, a melt index (I 2 ) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (M z /M w ) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition. The fibers according to the instant invention comprise a polyethylene composition comprising: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.920 to 0.970 g/cm 3 , a molecular weight distribution (M w/ M n ) in the range of 1.70 to 3.5, a melt index (I 2 ) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (M z /M w ) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition. The process for making a fiber according to instant invention comprises the steps of: (1) selecting a polyethylene composition comprising: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.920 to 0.970 g/cm 3, a molecular weight distribution (M w /M n ) in the range of 1.70 to 3.5, a melt index (I 2 ) in the range of 0.2 to 1000 g/10 minutes, a molecular weight distribution (M z/ M w ) in the range of less than 2.5, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the composition; (2) spinning the polyethylene composition into a fiber; and (3) thereby forming the fiber.
摘要翻译：本发明是聚乙烯组合物，其制造方法，由其制成的纤维及其制造方法。根据本发明的聚乙烯组合物包含：（a）小于或等于100重量％的衍生自乙烯的单元; 和（b）少于20重量％的衍生自一种或多种α-烯烃共聚单体的单元。本发明的聚乙烯组合物的密度范围为0.920〜0.970g / cm3，分子量分布（Mw / Mn）为1.70〜3.5，熔体指数（I2）为0.2〜 1000g / 10分钟，小于2.5的分子量分布（Mz / Mw），存在于组合物主链中的每1000个碳原子的乙烯基不饱和度小于0.1个乙烯基。制备本发明的聚乙烯组合物的方法包括以下步骤：（1）在铪基金属茂催化剂存在下，通过气相（共）聚合方法在（a）共聚物中共聚合乙烯和任选的一种或多种α-烯烃共聚单体单级反应器; 和（2）由此制备密度在0.920至0.970g / cm3范围内的聚乙烯组合物，分子量分布（Mw / Mn）在1.70至3.5的范围内，熔体指数（I2）在 0.2至1000g / 10分钟，小于2.5的分子量分布（Mz / Mw），存在于组合物主链中的每1000个碳原子的乙烯基不饱和度小于0.1个乙烯基。根据本发明的纤维包含聚乙烯组合物，其包含：（a）小于或等于100重量％的衍生自乙烯的单元; 和（b）少于20重量％的衍生自一种或多种α-烯烃共聚单体的单元; 其中，所述聚乙烯组合物的密度为0.920〜0.970g / cm 3，分子量分布（Mw / Mn）为1.70〜3.5，熔体指数（I2）为0.2〜1000g / 10分钟，小于2.5的范围内的分子量分布（Mz / Mw），存在于组合物的骨架中的每1000个碳原子的乙烯基不饱和度小于0.1个乙烯基。根据本发明的制备纤维的方法包括以下步骤：（1）选择聚乙烯组合物，其包含：（a）小于或等于100重量％的衍生自乙烯的单元; 和（b）少于20重量％的衍生自一种或多种α-烯烃共聚单体的单元; 其中，所述聚乙烯组合物的密度为0.920〜0.970g / cm 3，分子量分布（Mw / Mn）为1.70〜3.5，熔体指数（I2）为0.2〜1000g / 10分钟，小于2.5的范围内的分子量分布（Mz / Mw），存在于组合物的骨架中的每1000个碳原子的乙烯基不饱和度小于0.1个乙烯基; （2）将聚乙烯组合物纺丝成纤维; 和（3）从而形成纤维。

5. 发明申请

WO2006065651A3 RHEOLOGY MODIFIED POLYETHYLENE COMPOSITIONS 审中-公开
标题翻译：流变学改性聚乙烯组合物
公开(公告)号：WO2006065651A3
公开(公告)日：2006-07-27
申请号：PCT/US2005044643
申请日：2005-12-09
申请人： DOW GLOBAL TECHNOLOGIES INC , MICHIE WILLIAM J JR , HOGAN TODD A , MARTINEZ FELIPE F , NEUBAUER ANTHONY C , COSTEUX STEPHANE , CHANG DANE , KAPUR MRIDULA
发明人： MICHIE WILLIAM J JR , HOGAN TODD A , MARTINEZ FELIPE F , NEUBAUER ANTHONY C , COSTEUX STEPHANE , CHANG DANE , KAPUR MRIDULA
IPC分类号： C08L23/04 , C08K5/43
CPC分类号： C08K5/43 , C08L23/0807 , C08L2205/02 , Y10T428/1352 , Y10T428/139 , C08L23/08 , C08L2666/06
摘要： A polymer composition comprises a low-molecular-weight (LMW) ethylene polymer component and a high-molecular-weight (HMW) ethylene polymer component coupled with a polysulfonyl azide. Preferably, the LMW polyethylene component and the HMW polyethylene component co-crystallize in the composition such that it exhibits a single or substantially single peak in a lamella thickness distribution (LTD) curve. The ethylene polymer for the LMW and the HMW polyethylene components can be either homopolymer or ethylene copolymer. Preferably, both components are an ethylene copolymer of the same, or different, composition (that is, with the same or different comonomers). A method of making a pipe that includes selecting a polymer composition having a substantially single peak in the LTD curve is described. Compositions comprising a chromium-catalyzed ethylene polymer, coupled with a polysulfonyl azide are also described herein.
摘要翻译：聚合物组合物包含与聚磺酰叠氮基偶联的低分子量（LMW）乙烯聚合物组分和高分子量（HMW）乙烯聚合物组分。优选地，LMW聚乙烯组分和HMW聚乙烯组分在组合物中共结晶，使得其在薄片厚度分布（LTD）曲线中表现出单一或基本上单峰。用于LMW和HMW聚乙烯组分的乙烯聚合物可以是均聚物或乙烯共聚物。优选地，两种组分都是相同或不同组成（即相同或不同的共聚单体）的乙烯共聚物。描述了制造管道的方法，其包括选择在LTD曲线中具有基本单峰的聚合物组合物。本文还描述了包含铬催化的乙烯聚合物与聚磺酰叠氮化物偶联的组合物。

6. 发明申请

WO2004101674A1 POLYMER COMPOSITION AND PROCESS TO MANUFACTURE HIGH MOLECULAR WEIGHT-HIGH DENSITY POLYETHYLENE AND FILM THEREFROM 审中-公开
标题翻译：聚合物组合物和制备高分子量密度聚乙烯和其膜的方法
公开(公告)号：WO2004101674A1
公开(公告)日：2004-11-25
申请号：PCT/US2004/013975
申请日：2004-05-05
申请人： DOW GLOBAL TECHNOLOGIES INC , MICHIE, William, J., Jr. , NEUBAUER, Anthony, C. , COBLER, Brad, A. , BAKER, Carl, F.
发明人： MICHIE, William, J., Jr. , NEUBAUER, Anthony, C. , COBLER, Brad, A. , BAKER, Carl, F.
IPC分类号： C08L23/16
CPC分类号： C08F210/16 , B29C47/0014 , B29C47/0021 , B29C47/38 , B29C47/404 , C08F8/00 , C08L23/0815 , C08L2205/02 , C08L2308/00 , Y10S525/938 , C08F10/02 , C08F2/001 , C08L2666/06 , C08F210/14 , C08F2500/12 , C08F2500/07 , C08F2500/04 , C08F2500/09 , C08F2500/26
摘要： The present invention includes a multimodal polyethylene composition has (1) a density of at least about 0.940 g/cm 3 as measured by ASTM Method D-1505; (2) a melt flow index (I 5 ) of from about 0.2 to about 1.5 g/10 min (as measured by ASTM D-1238, measured at 190 °C and 5 kilograms); (3) a melt flow index ratio (I 21 /I 5 ) of from about 20 to about 50; (4) a molecular weight distribution, Mw/Mn, of from about 20 to about 40; (5) a bubble stability measured on specified equipment according to specified conditions for a film of about 6 X 10 -6 m thickness of at least about 1.22 m/s line speed, at least about 45 kg/hr (0.013 kg/sec) output rate, or at least about 0.5 lb/hr/rpm (0.0000011 kg/s/rps) specific output rate or a combination thereof; the composition comprising; and (6) a dart impact on 12.5 micron (1.25 X 10 -5 m) film of at least 300 g; measured according to ASTM 1709, Method A; (A) a high molecular weight fraction which; (a) is present in an amount of from about 30 to about 70 weight percent (based on the total weight of the composition); (b) has a density of at least about 0.860 g/cm 3 as measured by ASTM D-1505; (c) has a melt flow index (I 21 ) of from about 0.01 to about 50 g/10 min (as measured by ASTM D-1238, measured at 190 °C and 21.6 kilograms); and (d) a melt flow index ratio (I 21 /I 5 ) of from about 6 to about 12; and (B) a low molecular weight fraction which; (a) is present in an amount of from about 30 to about 70 weight percent (based on the total weight of the composition); (b) has a density of at least about 0.900 g/cm 3 as measured by ASTM D-1505; (c) has a melt flow index (I 2 ) of from about 0.5 to about 3000 g/10 min (as measured by ASTM D-1238, measured at 190 °C and 2.16 kilograms); (d) a melt flow index ratio (I 21 /I 5 ) of from about 5 to about 15; and (e) is prepared using a mole ratio of alpha olefin to ethylene of less than or equal to about 0.001:1. The invention also includes a process for producing a multimodal ethylene polymer, which process comprises the following steps: (1) contacting in a first gas phase fluidized bed reactor under polymerization conditions and at a temperature of from about 70 °C to about 110 °C, a supported titanium magnesium catalyst precursor, cocatalyst, and a gaseous composition, the gaseous composition having; (i) a mole ratio of alpha-olefin to ethylene of from about 0.01:1 to about 0.8:1; and optionally (ii) a mole ratio of hydrogen to ethylene of from about 0.001:1 to about 0.3:1, to produce a high molecular weight polymer(HMW); and (2) transferring the HMW polymer from step 1 to a second gas phase fluidized bed reactor under polymerization conditions and at a temperature of from about 70 °C to about 110 °C, with a gaseous composition having; (i) a mole ratio of alpha-olefin to ethylene of from about 0.0005:1 to about 0.01:1; and (ii) a mole ratio of hydrogen (if present) to ethylene of from about 0.01:1 to about 3:1 to form a polymer blend product; and (3) melting the polymer blend product in an extruder having a mixer vent wherein; (ii) the mixture vent has an oxygen concentration of from about 0.05 to about 6 volume percent oxygen in nitrogen; and (ii) the extrusion temperature is sufficient to melt the polymer and achieve tailoring in the presence of oxygen; and (4) passing the molten polymer blend through one or more active screens, wherein in the 5 case of two or more active screens, the screens are positioned in series, each active screen having a micron retention size of from about 2 to about 70, at a mass flux of about 1.0 to about 20 kg/s/m 2 ) to form a screened molten polymer blend. The composition is preparable by the process and is preferably prepared by the process. The resin exhibits improved extrusion processing at high commercial line speeds, while exhibiting an excellent balance of 10 bubble stability, dart drop, and FAR, as well as outstanding NCLS with good flexural modulus.
摘要翻译：本发明包括多峰聚乙烯组合物，其具有（1）通过ASTM方法D-1505测量的至少约0.940g / cm 3的密度; （2）约0.2至约1.5g / 10min的熔体流动指数（I5）（通过ASTM D-1238测量，在190℃和5千克下测量）; （3）约20至约50的熔体流动指数比（I21 / I5）; （4）约20至约40的分子量分布Mw / Mn; （5）根据特定设备测量的约6×10 -6μm厚度的至少约1.22m / s线速度的膜的规定条件下测量的气泡稳定性，至少约45kg / hr（0.013kg / 秒）或至少约0.5lb / hr / rpm（0.0000011kg / s / rps）的特定输出速率或其组合; 所述组合物包含：和（6）至少300g的12.5微米（1.25×10 -5）膜的飞镖撞击; 根据ASTM 1709，方法A测量; （A）高分子量级分; （a）的存在量为约30至约70重量％（基于组合物的总重量）; （b）通过ASTM D-1505测量的密度为至少约0.860g / cm 3; （c）具有约0.01至约50g / 10min的熔体流动指数（I21）（通过ASTM D-1238测量，在190℃和21.6千克下测量）; 和（d）约6至约12的熔体流动指数比（I21 / I5）; 和（B）低分子量级分; （a）的存在量为约30至约70重量％（基于组合物的总重量）; （b）通过ASTM D-1505测量的密度为至少约0.900g / cm 3; （c）具有约0.5至约3000g / 10min的熔体流动指数（I 2）（通过ASTM D-1238测量，在190℃和2.16千克下测量）; （d）约5至约15的熔体流动指数比（I21 / I5）; 和（e）使用α-烯烃与乙烯的摩尔比小于或等于约0.001:1制备。本发明还包括一种生产多峰乙烯聚合物的方法，该方法包括以下步骤：（1）在聚合条件下和第一气相流化床反应器中在约70℃至约110℃的温度下接触，负载型钛镁催化剂前体，助催化剂和气态组合物，所述气态组合物具有：（i）α-烯烃与乙烯的摩尔比为约0.01:1至约0.8:1; 和（ii）氢与乙烯的摩尔比为约0.001:1至约0.3:1，以产生高分子量聚合物（HMW）; 和（2）在聚合条件下和在约70℃至约110℃的温度下将HMW聚合物从步骤1转移到第二气相流化床反应器，气态组合物具有：（i）α-烯烃与乙烯的摩尔比为约0.0005:1至约0.01:1; 和（ii）氢（如果存在）与乙烯的摩尔比为约0.01:1至约3:1以形成聚合物共混物; 和（3）在具有混合器排气口的挤出机中熔化聚合物共混物，其中：（ii）混合物通气口的氧浓度为f

7. 发明申请

WO2007106417A1 POLYETHYLENE RESINS FOR SHEET AND THERMOFORMING APPLICATIONS 审中-公开
标题翻译：聚乙烯树脂和热成型应用
公开(公告)号：WO2007106417A1
公开(公告)日：2007-09-20
申请号：PCT/US2007/006143
申请日：2007-03-09
申请人： DOW GLOBAL TECHNOLOGIES INC. , MICHIE, William, J., Jr. , HOGAN, Todd, A. , MARTINEZ BARRENECHE, Felipe, F. , NEUBAUER, Anthony, C. , COSTEUX, Stephane
发明人： MICHIE, William, J., Jr. , HOGAN, Todd, A. , MARTINEZ BARRENECHE, Felipe, F. , NEUBAUER, Anthony, C. , COSTEUX, Stephane
IPC分类号： C08J5/18
CPC分类号： B29C47/0869 , B29C47/0004 , B29C47/1072 , B29C47/92 , B29C2947/922 , B29C2947/92266 , B29C2947/92485 , B29C2947/92761 , B29C2947/92933 , B29K2023/065 , C08J5/18 , C08J2323/08
摘要： This invention relates to coupling of polyethylene resins, more specifically coupling of polyethylene resins for use in extruded profiles, especially extruded profiles for sheet extrusion and cut sheet thermoforming applications and geomembranes. The process involves conveying a HDPE resin through an extruder, wherein the extruder comprises a feed zone, a first melt zone downstream of the feed zone, a second melt zone downstream of the first melt zone, and a third melt zone downstream of the second melt zone. The resin is melted in the first zone, contacted with oxygen in the second melt zone, and contacted antioxidant in the third melt zone.
摘要翻译：本发明涉及聚乙烯树脂的偶联，更具体地说，用于挤出型材的聚乙烯树脂的偶联，特别是用于片材挤出和切割片材热成型应用的挤出型材以及土工膜。该方法包括将HDPE树脂输送通过挤出机，其中挤出机包括进料区，进料区下游的第一熔融区，第一熔融区下游的第二熔融区，第二熔体下游的第三熔融区区。树脂在第一区域熔化，与第二熔融区域中的氧气接触，并在第三熔融区域中与抗氧化剂接触。

8. 发明申请

WO2003102075A1 POLYMER COMPOSITIONS AND METHOD OF MAKING PIPES THEREOF 审中-公开
标题翻译：聚合物组合物及其制造方法
公开(公告)号：WO2003102075A1
公开(公告)日：2003-12-11
申请号：PCT/US2003/017642
申请日：2003-06-04
申请人： UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION , ZHOU, Jimmy, Z. , MICHIE, William, J., Jr.
发明人： ZHOU, Jimmy, Z. , MICHIE, William, J., Jr.
IPC分类号： C08L23/16
CPC分类号： C08F210/16 , C08F4/65912 , C08F10/00 , C08L23/06 , C08L23/0815 , C08L2205/02 , C08L2308/00 , C08L2314/02 , C08F4/65927 , C08F2/001 , C08L2666/06 , C08F210/14 , C08F2500/02 , C08F2500/07 , C08F2500/12 , C08F2500/18 , C08F2500/26 , C08F2500/05 , C08F210/08 , C08F2500/01
摘要： A polymer composition comprises a low-molecular-weight (LMW) ethylene polymer component and a high-molecular-weight (HMW) ethylene polymer component. Preferably, the LMW polyethylene component and the HMW polyethylene component co-crystallize in the composition such that it exhibits a single or substantially single peak in a lamella thickness distribution ("LTD") curve. The ethylene polymer for the LMW and the HMW polyethylene components can be either homopolyethylene or ethylene copolymer. Preferably, both components are an ethylene copolymer of the same or different composition (i.e., with the same or different comonomers). A method of making a pipe that includes selecting a polymer composition having a substantially single peak in the LTD curve is described.
摘要翻译：聚合物组合物包含低分子量（LMW）乙烯聚合物组分和高分子量（HMW）乙烯聚合物组分。优选地，LMW聚乙烯组分和HMW聚乙烯组分在组合物中共结晶，使得其在薄片厚度分布（“LTD”）曲线中表现出单一或基本上单峰。用于LMW和HMW聚乙烯组分的乙烯聚合物可以是均聚乙烯或乙烯共聚物。优选地，两种组分都是相同或不同组成的乙烯共聚物（即与相同或不同的共聚单体）。描述了制造管道的方法，其包括选择在LTD曲线中具有基本单峰的聚合物组合物。

9. 发明申请

WO2013095877A1 A POLYETHYLENE COMPOSITION AND ARTICLES MADE THEREFROM 审中-公开
标题翻译：聚乙烯组合物及其制品
公开(公告)号：WO2013095877A1
公开(公告)日：2013-06-27
申请号：PCT/US2012/066736
申请日：2012-11-28
申请人： DOW GLOBAL TECHNOLOGIES LLC , MICHIE, William, J., Jr. , WRIGHT, Dale, A. , JORGENSEN, Robert, J. , BAKER, Carl, F.
发明人： MICHIE, William, J., Jr. , WRIGHT, Dale, A. , JORGENSEN, Robert, J. , BAKER, Carl, F.
IPC分类号： C08F10/00
CPC分类号： C08J9/16 , C08F10/02 , C08F110/02 , Y10T428/1372 , Y10T428/2982 , C08F10/00 , C08F4/69 , C08F4/025 , C08F2500/07 , C08F2500/12 , C08F2500/18 , C08F2500/24
摘要： A polyethylene composition comprising a granular polyethylene resin characterized by a resin solid density of from 0.91 to 0.97 g/cm 3 , a ratio of intraparticle void volume to interparticle void volume of from 0.33 to 0.67, and a total resin porosity, Φtotal, of equal to or greater than 0.45 is provided. Further provided are articles made from the polyethylene composition
摘要翻译：一种聚乙烯组合物，其包含颗粒状聚乙烯树脂，其特征在于树脂固体密度为0.91至0.97g / cm 3，颗粒内空隙体积与颗粒间隙体积之比为0.33至0.67，总树脂孔隙率Phitotal等于或大于0.45。进一步提供由聚乙烯组合物制成的制品

10. 发明申请

WO2007130553A2 HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF MAKING THE SAME, WIRE AND CABLE JACKETS MADE THEREFROM, AND METHOD OF MAKING SUCH WIRE AND CABLE JACKETS 审中-公开
标题翻译：高密度聚乙烯组合物，其制造方法，其制造的线缆和电缆夹具以及制造这种电线和电缆夹具的方法
公开(公告)号：WO2007130553A2
公开(公告)日：2007-11-15
申请号：PCT/US2007010796
申请日：2007-05-02
申请人： DOW GLOBAL TECHNOLOGIES INC , KMIEC CHESTER J , MICHIE WILLIAM J JR
发明人： KMIEC CHESTER J , MICHIE WILLIAM J JR
IPC分类号： C08L23/04
CPC分类号： C08L23/08 , C08L23/04 , C08L23/06 , C08L23/0815 , C08L2203/10 , Y10T428/24992 , Y10T428/273 , C08L2666/06
摘要： The instant invention is a high-density polyethylene composition, method of producing the same, wire and cable jackets made therefrom, and method of making such wire and cable jackets. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g/cm 3 , and a melt index (I 21.6 ) in the range of 0.5 to 10 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm 3 , and a melt index (I 2 ) in the range of 50 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I 2 ) of at least 1, a density in the range of 0.950 to 0.960 g/cm 3 , and g' of equal or greater than 1. The method of producing a high-density polyethylene composition includes the following steps: (1) introducing ethylene, and one or more alpha-olefin comonomers into a first reactor; (2) (co)polymerizing the ethylene in the presence of one or more alpha-olefin comonomers in the first reactor thereby producing a first component, wherein the first component being a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g/cm 3 , and a melt index (I 21.6 ) in the range of 0.5 to 10 g/10 minutes; (3) introducing the first component and additional ethylene into a second reactor; (4) polymerizing the additional ethylene in the second reactor thereby producing a second component, wherein the second component being a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm 3 , and a melt index (I 2 ) in the range of 50 to 1500 g/10 minutes; and (5) thereby producing the high-density polyethylene composition, wherein the high-density polyethylene composition having a melt index (I 2 ) of at least 1, a density in the range of 0.950 to 0.960 g/cm 3 , and g' of equal or greater than 1. The wire and cable jackets according to instant invention comprise the above-described inventive high-density polyethylene composition, and such wire and cable jackets may be made via extrusion.
摘要翻译：本发明是高密度聚乙烯组合物，其制造方法，由其制成的电线电缆护套，以及制造这种电线电缆护套的方法。本发明的高密度聚乙烯组合物包括第一组分和第二组分。第一组分是密度在0.915至0.940g / cm 3范围内的高分子量乙烯α-烯烃共聚物，熔体指数（I 21.6）在0.5〜10g / 10分钟的范围内。第二组分是密度在0.965至0.980g / cm 3范围内的低分子量乙烯聚合物，熔体指数（I 2 S 2）在该范围内为50〜1500g / 10分钟。高密度聚乙烯组合物的熔体指数（I 2/2）至少为1，密度在0.950至0.960g / cm 3的范围内，g' 等于或大于1.制备高密度聚乙烯组合物的方法包括以下步骤：（1）将乙烯和一种或多种α-烯烃共聚单体引入第一反应器; （2）（共）在第一反应器中在一种或多种α-烯烃共聚单体存在下聚合乙烯，从而产生第一组分，其中第一组分是密度在该范围内的高分子量乙烯α-烯烃共聚物为0.915〜0.940g / cm 3，熔体指数（I <21.6℃）为0.5〜10g / 10分钟; （3）将第一组分和另外的乙烯引入第二反应器中; （4）在第二反应器中聚合另外的乙烯，从而产生第二组分，其中第二组分是密度在0.965至0.980g / cm 3范围内的低分子量乙烯聚合物，和熔体指数（I 2 H 2）在50至1500g / 10分钟的范围内; 和（5），从而制备高密度聚乙烯组合物，其中熔体指数（I 2/2）至少为1的密度为0.950-0.960g的高密度聚乙烯组合物 / cm 3，g'等于或大于1.根据本发明的电线和电缆护套包括上述本发明的高密度聚乙烯组合物，并且这种电线和电缆护套可以是通过挤压制成。

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