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    Resin compositions for extrusion coating
    1.
    发明授权
    Resin compositions for extrusion coating 有权
    用于挤出涂层的树脂组合物

    公开(公告)号：US07776987B2

    公开(公告)日：2010-08-17

    申请号：US10566937

    申请日：2004-09-03

    申请人： Thomas Oswald ,  James L. Cooper ,  Jeffrey D. Weinhold ,  David T. Gillespie

    发明人： Thomas Oswald ,  James L. Cooper ,  Jeffrey D. Weinhold ,  David T. Gillespie

    IPC分类号： C08F110/02 ,  C08F8/00 ,  C08L23/00 ,  C08L23/04

    CPC分类号： C09D123/08 ,  C08J5/18 ,  C08J2300/00 ,  C08J2323/06 ,  C08L23/06 ,  C08L23/08 ,  C08L23/0815 ,  C09D123/06 ,  C08L2666/06

    摘要： A composition is disclosed which is particularly suited for use in extrusion coating. The composition comprises a polymeric material having a rheology such that the slope S of a natural log-natural log plot of loss modulus (or G″) versus storage modulus (or G′) is greater than [0.635*(melt index)+13.2]/[(melt index)+16.6], and wherein the polymeric material has a CDF RI fraction less than 0.23 of a GPC chromatogram which has a molecular weight above 85,000 g/mol, and a CDF LS fraction of more than 0.07 at a conventional GPC molecular weight of 1,750,000 g/mol or greater. The compositions exhibit reduced neck-in when used in extrusion coating and the neck-in is independent of melt strength, thereby facilitating improved extrusion processes.

    摘要翻译： 公开了一种特别适用于挤出涂层的组合物。 组合物包含具有流变学性质的聚合材料，使得损耗模量（或G“）对储能模量（或G'）的自然对数 - 自然对数图的斜率S大于[0.635 *（熔体指数）+13.2 ] / [（熔体指数）+16.6]，其中聚合物材料的CDF RI分数低于GPC色谱图的0.23，其分子量高于85,000g / mol，且在 常规GPC分子量为1750,000g / mol以上。 当用于挤出涂布时，组合物显示减少的颈缩，并且颈缩不依赖于熔体强度，从而有助于改进挤出工艺。

    POLYOLEFIN COMPOSITIONS, ARTICLES MADE THEREFROM AND METHODS FOR PREPARING THE SAME
    6.
    发明申请
    POLYOLEFIN COMPOSITIONS, ARTICLES MADE THEREFROM AND METHODS FOR PREPARING THE SAME 审中-公开
    聚烯烃组合物及其制备方法及其制备方法

    公开(公告)号：US20100056727A1

    公开(公告)日：2010-03-04

    申请号：US12064308

    申请日：2006-08-18

    申请人： Colin LiPiShan ,  Mridula (Babli) Kapur ,  Stephane Costeux ,  David T. Gillespie

    发明人： Colin LiPiShan ,  Mridula (Babli) Kapur ,  Stephane Costeux ,  David T. Gillespie

    IPC分类号： C08L23/06

    CPC分类号： C08L23/08 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2666/06

    摘要： The invention provides compositions for blow molding applications and other applications, where such compositions comprise a high density ethylene polymer and a high molecular weight ethylene polymer. In these compositions, the high density ethylene polymer has a density greater than the density of the high molecular weight ethylene polymer, and the high molecular weight ethylene polymer has a weight average molecular weight greater than the weight average molecular weight of the high density ethylene polymer, and in addition, the high density ethylene polymer has a density from 0.94 g/cm3 to 0.98 g/cm3, and a molecular weight distribution, Mw/Mn, greater than 8, and the high molecular weight ethylene polymer has a weight average molecular weight greater than 200,000 g/mole, and a molecular weight ratio, Mz/Mw, less than 5.

    摘要翻译： 本发明提供用于吹塑应用和其它应用的组合物，其中这种组合物包含高密度乙烯聚合物和高分子量乙烯聚合物。 在这些组合物中，高密度乙烯聚合物的密度大于高分子量乙烯聚合物的密度，高分子量乙烯聚合物的重均分子量大于高密度乙烯聚合物的重均分子量 另外，高密度乙烯聚合物的密度为0.94g / cm 3至0.98g / cm 3，分子量分布Mw / Mn大于8，高分子量乙烯聚合物的重均分子量 重量大于200,000g / mol，分子量比Mz / Mw小于5。

    High-Density Polyethylene Compositions, Method of Making the Same, Articles Made Therefrom, and Method of Making Such Articles
    7.
    发明申请
    High-Density Polyethylene Compositions, Method of Making the Same, Articles Made Therefrom, and Method of Making Such Articles 有权

    公开(公告)号：US20080221273A1

    公开(公告)日：2008-09-11

    申请号：US12067832

    申请日：2007-05-02

    申请人： William J. Michie Jr. ,  Thomas W. Kay ,  Stephanie M. Whited ,  Dale M. Elley-Bristow ,  David T. Gillespie ,  Lonnie G. Hazlitt

    发明人： William J. Michie Jr. ,  Thomas W. Kay ,  Stephanie M. Whited ,  Dale M. Elley-Bristow ,  David T. Gillespie ,  Lonnie G. Hazlitt

    IPC分类号： C08L23/04 ,  C08F2/00 ,  B29C43/00 ,  B29C45/00

    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 compositions, and method of making the same. 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/cm3, and a melt index (I21) 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/cm3, and a melt index (I2) in the range of 50 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3, and g′ of equal or greater than 1. The method of producing a high-density polyethylene composition include the following steps: (1) introducing ethylene, and an alpha-olefin comonomer into a first reactor; (2) copolymerizing the ethylene with the alpha-olefin comonomer 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/cm3, and a melt index (I21) 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/cm3, and a melt index (I2) 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 (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3, and g′ of equal or greater than 1.

    Process for producing low density polyethylene compositions and polymers produced therefrom
    10.
    发明授权
    Process for producing low density polyethylene compositions and polymers produced therefrom 有权
    用于生产低密度聚乙烯组合物和由其制备的聚合物的方法

    公开(公告)号：US07741415B2

    公开(公告)日：2010-06-22

    申请号：US11666527

    申请日：2005-10-04

    申请人： Christopher W. Conrad ,  David T. Gillespie ,  Christopher R. Eddy

    发明人： Christopher W. Conrad ,  David T. Gillespie ,  Christopher R. Eddy

    IPC分类号： C08F10/02 ,  C08F10/04 ,  C08F10/06

    CPC分类号： C08F110/02 ,  C08F4/34 ,  C08F2/001 ,  C08F2500/12 ,  C08F2500/11 ,  C08F2500/04

    摘要： The present invention relates to an ethylene homo or copolymer characterized as having long chain branching, and having a molecular weight distribution, Mw/Mn, and a GPC-LALLS CDF, which satisfies the following relationship: y≧0.0663x−0.015, wherein y=GPC-LALLS CDF and x=Mw/Mn measured by conventional GPC, a line drawn from where the LS chromatogram intersects with molecular weight 350,000 and molecular weight 1,150,000 has a positive slope, preferably with a melt index between 0.15 and 2000 g/10 minutes and having long chain branching. In addition, the invention relates to a free radical initiation polymerization process for the preparation of ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 13,000 psig and 100,000 psig, and at reactor temperatures of 115° C. to 400° C., preferably 125-400° C., more preferably 140-350° C., especially 165-320° C., in a reactor system comprising at least one tubular, and at least one autoclave reactor, wherein the monomer(s) feed into the reactors is divided into multiple monomer feed streams, and wherein at least one feed stream into the tubular reactor consists essentially of unreacted monomer.

    摘要翻译： 本发明涉及特征在于具有长支链，并且分子量分布Mw / Mn和GPC-LALLS CDF的乙烯均聚物或共聚物，其满足以下关系：y≥0.0663x-0.015，其中y = GPC-LALLS CDF和x =通过常规GPC测量的Mw / Mn，从LS色谱图与分子量为350,000和分子量为1,150,000相交的线绘制的线具有正斜率，优选熔体指数在0.15和2000g / 10 分钟，并具有长链分支。 此外，本发明涉及用于制备乙烯聚合物或共聚物的自由基引发聚合方法，包括使乙烯和任选的一种或多种共聚单体在高压下，方便地在13000psig至100,000psig之间，反应器温度为115℃ 在包含至少一个管状和至少一个高压釜反应器的反应器系统中，在约400℃，优选125-400℃，更优选140-350℃，特别是165-320℃ ，其中进入反应器的单体被分成多个单体进料流，并且其中至少一个进入管式反应器的进料流基本上由未反应的单体组成。