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公开(公告)号：US06770715B2
公开(公告)日：2004-08-03
申请号：US10242191
申请日：2002-09-12
申请人： Philip J. Garrison , Lawrence R. Wallace , Danny L. Wise , James H. Meas , Leonard V. Cribbs , Jean A. Merrick-Mack , Paula L. Nygard
发明人： Philip J. Garrison , Lawrence R. Wallace , Danny L. Wise , James H. Meas , Leonard V. Cribbs , Jean A. Merrick-Mack , Paula L. Nygard
IPC分类号： C08F21002
CPC分类号： C08F297/08 , C08F210/16 , C08F255/00 , C08L23/0815 , C08L2205/02 , C08L2308/00 , C08L2314/06 , Y10S526/905 , C08F2/001 , C08L2666/04 , C08F210/08 , C08F2500/12 , C08F2500/05 , C08F2500/26
摘要： A high molecular weight, medium density polyethylene (HMW, MDPE) is disclosed. The polyethylene comprises from about 85 to about 98 wt % of recurring units of ethylene and about 2 to about 15 wt % of a C3-C10 &agr;-olefin. It has a density from about 0.92 to about 0.944 g/cc, a melt index MI2 from about 0.01 to about 0.5 dg/min, and a melt flow ratio MFR from about 50 to about 300. It has a multimodal molecular weight distribution comprising a high molecular weight component and a low molecular weight component. The low molecular weight component has an MI2 from about 50 to about 600 dg/min and a density from about 0.94 to about 0.97 g/cc. A process for making the medium density polyethylene is also disclosed. The process uses a Ziegler catalyst and applies multiple reaction zones.
摘要翻译： 公开了高分子量，中密度聚乙烯（HMW，MDPE）。 聚乙烯包含约85至约98重量％的乙烯重复单元和约2至约15重量％的C 3 -C 10α-烯烃。 其密度为约0.92至约0.944g / cc，熔体指数MI2为约0.01至约0.5dg / min，熔体流动比MFR为约50至约300.它具有多峰分子量分布，其包含 高分子量组分和低分子量组分。 低分子量组分具有约50至约600dg / min的MI2和约0.94至约0.97g / cc的密度。 还公开了制备中密度聚乙烯的方法。 该方法使用齐格勒催化剂并应用多个反应区。
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2.发明授权Preparation of multimodal, high density, ethylene homopolymer barrier resins and films 有权制备多峰，高密度，乙烯均聚物阻隔树脂和薄膜公开(公告)号：US07951883B1
公开(公告)日：2011-05-31
申请号：US12592900
申请日：2009-12-04
IPC分类号： C08F4/44
CPC分类号： C08J5/18 , B32B27/08 , B32B27/32 , C08F110/02 , C08J2323/06 , C08F4/6465 , C08F2500/05 , C08F2500/07 , C08F2500/12 , C08F2500/26
摘要： Disclosed is a multimodal, high density, homopolyethylene barrier resin. The resin is preferably made by a multistage process. The process comprises a first stage in which ethylene is homopolymerized in the presence of a Ziegler-Natta catalyst, organoaluminum cocatalyst, alkoxysilane modifier, and hydrogen. The reaction mixture from the first stage is devolatilized to remove all or substantially all of the hydrogen. The polymerization continues in a second stage wherein ethylene is added to the devolatilized reaction mixture to produce the barrier resin. The barrier resin provides films with improved barrier properties.
摘要翻译： 公开了一种多峰，高密度均聚乙烯阻挡树脂。 树脂优选通过多级方法制成。 该方法包括在齐格勒 - 纳塔催化剂，有机铝助催化剂，烷氧基硅烷改性剂和氢气存在下乙烯均聚的第一阶段。 来自第一阶段的反应混合物脱挥发分以除去所有或基本上全部的氢。 聚合在第二阶段继续，其中将乙烯加入到脱挥发分的反应混合物中以产生阻挡树脂。 阻隔树脂提供具有改进的阻挡性能的膜。
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公开(公告)号：US20090304966A1
公开(公告)日：2009-12-10
申请号：US12156844
申请日：2008-06-05
申请人： Sameer D. Mehta , Mark K. Reinking , Sebastian Joseph , Philip J. Garrison , Everett O. Lewis , Thomas J. Schwab , Wallace W. Yau
发明人： Sameer D. Mehta , Mark K. Reinking , Sebastian Joseph , Philip J. Garrison , Everett O. Lewis , Thomas J. Schwab , Wallace W. Yau
CPC分类号： C08F210/16 , C08F110/02 , Y10T428/139 , C08F2/001 , C08F2500/02 , C08F2500/07 , C08F2500/05 , C08F2500/12 , C08F2500/09 , C08F210/08 , C08F2500/01 , C08F2500/08 , C08F210/14
摘要： Bimodal polyethylene resins having reduced long-chain branching and suitable for use in pipe resin applications as a result of their improved SCG and RCP resistance are provided. The improved resins of the invention are produced in a two-reactor cascade slurry polymerization process using a Ziegler-Natta catalyst system and wherein an alkoxysilane modifier is present in both reactors.
摘要翻译： 提供了由于其改进的SCG和RCP电阻而具有减少的长链支化并适合用于管道树脂应用的双峰聚乙烯树脂。 本发明的改进的树脂在使用齐格勒 - 纳塔催化剂体系的双反应器级联淤浆聚合方法中制备，并且其中烷氧基硅烷改性剂存在于两个反应器中。
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4.发明授权Process for producing polyethylene film composition having broad molecular weight distribution and improved bubble stability 有权制备具有宽分子量分布和改善气泡稳定性的聚乙烯薄膜组合物的方法
公开(公告)号：US6147167A
公开(公告)日：2000-11-14
申请号：US337460
申请日：1999-06-21
IPC分类号： C08F8/06 , C08F8/50 , C08F110/02 , C08F210/02
CPC分类号： C08J5/18 , C08F8/50 , C08F110/02 , C08F2810/10 , C08J2323/08
摘要： A process for producing a polyethylene film composition, comprising melt extruding a linear copolymer of ethylene and at least one other olefin having from 3 to 8 carbon atoms, said linear copolymer having a bimodal distribution comprising a high molecular weight fraction having a weight average molecular weight of at least 600,000 and a low molecular weight fraction having a weight average molecular weight of less than 20,000 at a temperature of from 195 to 285.degree. C. in the presence of oxygen in an amount of from about 0.5 to about 6% by volume to improve bubble stability without any significant reduction in tear strength of film produced from said melt extruded linear copolymer.
摘要翻译： 一种生产聚乙烯薄膜组合物的方法，包括熔融挤出乙烯和至少一种具有3至8个碳原子的其它烯烃的线性共聚物，所述线性共聚物具有双峰分布，其包含具有重均分子量的高分子量分数 至少为600,000，在氧存在下，在195-285℃的温度下，重均分子量小于20,000的低分子量级分，其量为约0.5至约6体积％ 改善泡沫稳定性，而不会显着降低由所述熔融挤出的线性共聚物制备的膜的撕裂强度。
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5.发明申请PREPARATION OF MULTIMODAL, HIGH DENSITY, ETHYLENE HOMOPOLYMER BARRIER RESINS AND FILMS 有权多模，高密度，乙烯共聚物阻挡树脂和膜的制备公开(公告)号：US20110136997A1
公开(公告)日：2011-06-09
申请号：US12592900
申请日：2009-12-04
IPC分类号： C08F110/02
CPC分类号： C08J5/18 , B32B27/08 , B32B27/32 , C08F110/02 , C08J2323/06 , C08F4/6465 , C08F2500/05 , C08F2500/07 , C08F2500/12 , C08F2500/26
摘要： Disclosed is a multimodal, high density, homopolyethylene barrier resin. The resin is preferably made by a multistage process. The process comprises a first stage in which ethylene is homopolymerized in the presence of a Ziegler-Natta catalyst, organoaluminum cocatalyst, alkoxysilane modifier, and hydrogen. The reaction mixture from the first stage is devolatilized to remove all or substantially all of the hydrogen. The polymerization continues in a second stage wherein ethylene is added to the devolatilized reaction mixture to produce the barrier resin. The barrier resin provides films with improved barrier properties.
摘要翻译： 公开了一种多峰，高密度均聚乙烯阻挡树脂。 树脂优选通过多级方法制成。 该方法包括在齐格勒 - 纳塔催化剂，有机铝助催化剂，烷氧基硅烷改性剂和氢气存在下乙烯均聚的第一阶段。 来自第一阶段的反应混合物脱挥发分以除去所有或基本上全部的氢。 聚合在第二阶段继续，其中将乙烯加入到脱挥发分的反应混合物中以产生阻挡树脂。 阻隔树脂提供具有改进的阻挡性能的膜。
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公开(公告)号：US07829641B2
公开(公告)日：2010-11-09
申请号：US12218597
申请日：2008-07-16
CPC分类号： C08F210/16 , C08F4/65912 , C08F4/65916 , C08F4/65925 , C08F4/65927 , Y02P20/52 , C08F4/65904 , C08F2/001 , C08F210/14 , C08F2500/05 , C08F2500/07 , C08F2500/12 , C08F210/08
摘要： A two-stage cascade polymerization process for the production of multimodal polyethylene film resins with improved bubble stability is provided. The process comprises polymerizing ethylene or a mixture of ethylene and a C4-8 α-olefin in two reactors arranged in series using a mixed single-site catalyst comprised of a bridged and a non-bridged indenoindolyl transition metal complex to form a multimodal polyethylene resin comprised of a lower molecular weight, higher density component and a higher molecular weight, lower density component.
摘要翻译： 提供了用于生产具有改善气泡稳定性的多峰聚乙烯薄膜树脂的两级级联聚合方法。 该方法包括使用由桥连和非桥连的茚并吲哚基过渡金属络合物组成的混合单中心催化剂在串联排列的两个反应器中聚合乙烯或乙烯与C 4-8α-烯烃的混合物，以形成多峰聚乙烯树脂 包括较低分子量，较高密度组分和较高分子量，较低密度组分。
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公开(公告)号：US07423098B2
公开(公告)日：2008-09-09
申请号：US11333576
申请日：2006-01-17
申请人： Philip J. Garrison , Charles S. Holland , Mark P. Mack , Linda N. Winslow , Everett O. Lewis , James R. Clark , Leonard V. Cribbs , Bradley P. Etherton , Jean A. Merrick-Mack , Paula L. Nygard
发明人： Philip J. Garrison , Charles S. Holland , Mark P. Mack , Linda N. Winslow , Everett O. Lewis , James R. Clark , Leonard V. Cribbs , Bradley P. Etherton , Jean A. Merrick-Mack , Paula L. Nygard
IPC分类号： C08F4/6192 , C08F4/6592 , C08F210/14 , C08F210/16
CPC分类号： C08F210/16 , Y10S526/905 , C08F2/001 , C08F2/14 , C08F210/08 , C08F2500/12 , C08F2500/26 , C08F210/14
摘要： An ethylene polymerization process is disclosed. Ethylene is polymerized in two slurry reaction zones with a C6-C10 alpha-olefin in the presence of a single-site catalyst capable of making a high molecular weight polyolefin. The process yields medium density and linear low density polyethylene having a bimodal molecular weight distribution and a melt index from about 0.10 to about 0.80. Films from the polyethylene have superior impact properties.
摘要翻译： 公开了一种乙烯聚合方法。 在能够制备高分子量聚烯烃的单中心催化剂的存在下，乙烯在两个浆料反应区中与C 6 -C 10α-烯烃聚合。 该方法产生具有双峰分子量分布和约0.10至约0.80的熔体指数的中密度和线性低密度聚乙烯。 聚乙烯薄膜具有优异的冲击性能。
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8.发明授权Polyethlene film composition having broad molecular weight distribution and improved bubble stability 失效具有宽分子量分布和改善的气泡稳定性的聚乙烯薄膜组合物
公开(公告)号：US5962598A
公开(公告)日：1999-10-05
申请号：US688021
申请日：1996-07-26
IPC分类号： C08F8/06 , C08F8/50 , C08F110/02 , C08F210/02
CPC分类号： C08J5/18 , C08F8/50 , C08F110/02 , C08F2810/10 , C08J2323/08
摘要： A polyethylene film composition characterized as having a broad molecular weight distribution, Mw/Mm 15, a density of 0.920 to 0.970 g/cc, a melt flow index (190.degree. C./2.16 kg) of 0.01 to 0.2 g/10 min., the polyethylene film composition being produced by melt extruding a linear copolymer at a temperature of at least 180.degree. C. in the presence of an amount of a free radical initiator sufficient to improve bubble stability without any significant reduction in the tear strength of film produced from the composition as compared with film produced from the linear copolymer that has not been treated with the free radical initiator.
摘要翻译： 特征在于具有宽分子量分布，Mw / Mm 15，密度为0.920至0.970g / cc，熔体流动指数（190℃/ 2.16kg）为0.01至0.2g / 10min的聚乙烯薄膜组合物。 ，所述聚乙烯薄膜组合物通过在至少180℃的温度下在一定量的自由基引发剂的存在下熔融挤出制备，所述自由基引发剂足以改善气泡稳定性，而不会显着降低所产生的膜的撕裂强度 与由未用自由基引发剂处理的线性共聚物制得的膜相比，
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公开(公告)号：US5356978A
公开(公告)日：1994-10-18
申请号：US125721
申请日：1993-09-24
申请人： Philip J. Garrison
发明人： Philip J. Garrison
IPC分类号： C08J3/215 , C08K5/3435 , C08K5/04 , C08K5/09 , C08K5/34
CPC分类号： C08J3/215 , C08K5/3435
摘要： Disclosed is a method of dispersing a tacky additive in a solution of a polymer, particularly a polyolefin. A dispersion composition prepared by adding the additive to a slurry of a non-polar solvent and an insoluble, infusible, non-reactive dispersant is added to the polymer solution. This prevents the additive from sticking to the vessel walls and the impeller or agglomerating.
摘要翻译： 公开了一种将粘性添加剂分散在聚合物，特别是聚烯烃溶液中的方法。 将添加剂添加到非极性溶剂和不溶性，不可渗透的非反应性分散剂的浆料中制备的分散组合物加入到聚合物溶液中。 这防止添加剂粘附到容器壁和叶轮或附聚物上。
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公开(公告)号：US20120123067A1
公开(公告)日：2012-05-17
申请号：US13358799
申请日：2012-01-26
申请人： Sameer D. MEHTA , Mark K. Reinking , Sebastian Joseph , Philip J. Garrison , Everett O. Lewis , Thomas J. Schwab , Wallace W. Yau
发明人： Sameer D. MEHTA , Mark K. Reinking , Sebastian Joseph , Philip J. Garrison , Everett O. Lewis , Thomas J. Schwab , Wallace W. Yau
IPC分类号： C08F4/58
CPC分类号： C08F210/16 , C08F110/02 , Y10T428/139 , C08F2/001 , C08F2500/02 , C08F2500/07 , C08F2500/05 , C08F2500/12 , C08F2500/09 , C08F210/08 , C08F2500/01 , C08F2500/08 , C08F210/14
摘要： Bimodal polyethylene resins having reduced long-chain branching and suitable for use in pipe resin applications as a result of their improved SCG and RCP resistance are provided. The improved resins of the invention are produced in a two-reactor cascade slurry polymerization process using a Ziegler-Natta catalyst system and wherein an alkoxysilane modifier is present in both reactors.
摘要翻译： 提供了由于其改进的SCG和RCP电阻而具有减少的长链支化并适合用于管道树脂应用的双峰聚乙烯树脂。 本发明的改进的树脂在使用齐格勒 - 纳塔催化剂体系的双反应器级联淤浆聚合方法中制备，并且其中烷氧基硅烷改性剂存在于两个反应器中。
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