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128 条记录 (耗时 0.062 秒)

    Thermoplastic polyolefin blends
    31.
    发明授权
    Thermoplastic polyolefin blends 有权
    热塑性聚烯烃共混物

    公开(公告)号：US08410217B2

    公开(公告)日：2013-04-02

    申请号：US13027896

    申请日：2011-02-15

    申请人： Mun F. Tse ,  Peijun Jiang

    发明人： Mun F. Tse ,  Peijun Jiang

    IPC分类号： C08F8/00 ,  C08L23/04

    CPC分类号： C08L23/06 ,  C08L23/04 ,  C08L23/08 ,  C08L23/0807 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2205/03 ,  C08L2314/06 ,  C08L2666/02 ,  C08L2666/06

    摘要： This invention relates to a blend composition comprising: 1) a linear ethylene containing polymer, such as a LLDPE, a HDPE or the like; and at least 1 weight percent of an in-reactor polymer blend comprising: (a) a first ethylene containing polymer having a density of greater than 0.90 g/cm3 and a Mw of more than 20,000 g/mol; and (b) a second ethylene containing polymer having a density of less than 0.90 g/cm3, wherein the polymer blend has a Tm of at least 90° C. (DSC second melt), a density of less than 0.92 g/cm3, and the densities of the first and second polymers differ by at least 1%.

    摘要翻译： 本发明涉及一种共混组合物，其包含：1）含线性乙烯的聚合物，例如LLDPE，HDPE等; 和至少1重量％的反应器内聚合物共混物，其包含：（a）密度大于0.90g / cm 3和Mw大于20,000g / mol的第一含乙烯聚合物; 和（b）密度小于0.90g / cm 3的第二含乙烯聚合物，其中聚合物共混物具有至少90℃的Tm（DSC第二熔体），小于0.92g / cm 3的密度， 并且第一和第二聚合物的密度相差至少1％。

    Branched Vinyl Terminated Polymers And Methods For Production Thereof
    33.
    发明申请
    Branched Vinyl Terminated Polymers And Methods For Production Thereof 有权
    支链乙烯基终端聚合物及其生产方法

    公开(公告)号：US20120245299A1

    公开(公告)日：2012-09-27

    申请号：US13411929

    申请日：2012-03-05

    申请人： Peijun Jiang ,  Patrick Brant

    发明人： Peijun Jiang ,  Patrick Brant

    IPC分类号： C08F255/02 ,  C08F8/00 ,  C08F4/76

    CPC分类号： C08F110/06 ,  C08F4/65908 ,  C08F4/65912 ,  C08F10/00 ,  C08F110/02 ,  C08F210/06 ,  C08F255/02 ,  C08F2500/03 ,  C08F2500/09 ,  C08F2500/20 ,  C08F4/65927 ,  C08F222/06

    摘要： This invention relates to a process for polymerization, comprising (i) contacting, at a temperature greater than 35° C., one or more monomers comprising ethylene and/or propylene, with a catalyst system comprising a metallocene catalyst compound and an activator, (ii) converting at least 50 mol % of the monomer to polyolefin; and (iii) obtaining a branched polyolefin having greater than 50% allyl chain ends, relative to total unsaturated chain ends. The invention also relates to the branched polyolefins and functionalized branched polyolefins.

    摘要翻译： 本发明涉及一种聚合方法，其包括（i）在大于35℃的温度下使一种或多种包含乙烯和/或丙烯的单体与包含茂金属催化剂化合物和活化剂的催化剂体系接触（ ii）将至少50mol％的单体转化成聚烯烃; 和（iii）获得相对于总不饱和链末端具有大于50％烯丙基链端的支链聚烯烃。 本发明还涉及支链聚烯烃和官能化支化聚烯烃。

    High shrinkage propylene-based films
    35.
    发明授权
    High shrinkage propylene-based films 有权
    高收缩丙烯基薄膜

    公开(公告)号：US08202941B2

    公开(公告)日：2012-06-19

    申请号：US12992204

    申请日：2009-05-27

    申请人： Jay K. Keung ,  Peijun Jiang

    发明人： Jay K. Keung ,  Peijun Jiang

    IPC分类号： C08F2/08 ,  C08F8/00 ,  C08L23/04 ,  C08L23/10 ,  C08L25/02 ,  C08K5/01

    CPC分类号： C08J5/18 ,  C08J2323/14 ,  C08L23/02 ,  C08L23/0815 ,  C08L23/142 ,  C08L57/02 ,  C08L2205/02 ,  C08L2666/02

    摘要： A heat-shrinkable film. The film comprising at least one layer having at least one propylene-based polymer comprising 60 wt % to 98 wt % propylene derived units and 2 wt % to 40 wt % one or more other alpha olefins, the propylene-based polymer having: a triad tacticity of 70% or more, a heat of fusion of less than 80 J/g, a weight average molecular weight (Mw) as measured by GPC of from 70,000 to 250,000. The layer also comprises at least one thermoplastic resin and at least one hydrocarbon resin.

    摘要翻译： 热收缩膜。 所述薄膜包含至少一层具有至少一种丙烯类聚合物的丙烯类聚合物，所述丙烯类聚合物包含60重量％至98重量％的丙烯衍生单元和2重量％至40重量％的一种或多种其它α-烯烃，所述丙烯类聚合物具有：三单元组 立构规整度为70％以上，熔融热小于80J / g，通过GPC测定的重均分子量（Mw）为70,000〜250,000。 该层还包含至少一种热塑性树脂和至少一种烃树脂。

    Thermoplastic elastomer polyolefin in-reactor blends and molded articles therefrom
    36.
    发明授权
    Thermoplastic elastomer polyolefin in-reactor blends and molded articles therefrom 有权
    热塑性弹性体聚烯烃反应器内共混物及其模塑制品

    公开(公告)号：US08101685B2

    公开(公告)日：2012-01-24

    申请号：US12638916

    申请日：2009-12-15

    申请人： Peijun Jiang ,  Armenag H. Dekmezian ,  Kevin R. Squire ,  Cesar A. Garcia-Franco

    发明人： Peijun Jiang ,  Armenag H. Dekmezian ,  Kevin R. Squire ,  Cesar A. Garcia-Franco

    IPC分类号： C08F8/00 ,  C08L23/04 ,  C08L23/10

    CPC分类号： C08L23/06 ,  C08L23/08 ,  C08L2205/02 ,  C08L2314/06 ,  C08L2666/06

    摘要： This invention relates to an in-reactor polymer blend comprising: (a) a first ethylene-containing polymer having a density of greater than 0.90 g/cm3 and a Mw of more than 20,000 g/mol and (b) a second ethylene-containing polymer having a density of less than 0.90 g/cm3, wherein the polymer blend has a Tm of at least 90° C. (DSC second melt), a density of less than 0.92 g/cm3, and the densities of the first and second polymers differ by at least 1%. Specifically this invention relates to an in-reactor polymer blend comprising: (a) a first ethylene polymer comprising 90 to 100 wt % ethylene and from 0 to less than 10 wt % comonomer, said first ethylene polymer component having density of greater than 0.920 g/cm3, an Mw of 20,000 g/mol or more; and (b) a second ethylene polymer comprising from 70 to 90 wt % ethylene and 30 to 10 wt % comonomer, said second ethylene polymer having a density of 0.910 g/cm3 or less, wherein the polymer blend has: (a) a Tm of at least 100° C. over a density ranging from 0.84 to 0.92 g/cm3; (b) a elongation at break of 300% or more; (c) a strain hardening index M300/M100 of at least 1.2; (d) a ratio of complex viscosity at 0.01 rad/s to the viscosity at 100 rad/s is of at least 30; and (e) a shear thinning slope of the plot of log(dynamic viscosity) versus log(frequency) less than −0.2.

    摘要翻译： 本发明涉及一种反应器内聚合物共混物，其包含：（a）密度大于0.90g / cm 3，Mw大于20,000g / mol的第一含乙烯聚合物和（b）第二含乙烯的聚合物 聚合物的密度小于0.90g / cm 3，其中聚合物共混物具有至少90℃的Tm（DSC第二熔体），密度小于0.92g / cm 3，第一和第二密度 聚合物的差异至少为1％。 具体而言，本发明涉及一种反应器内聚合物共混物，其包含：（a）包含90至100重量％乙烯和0至小于10重量％共聚单体的第一乙烯聚合物，所述第一乙烯聚合物组分的密度大于0.920g / cm3，Mw为20,000g / mol以上; 和（b）包含70-90wt％乙烯和30-10wt％共聚单体的第二乙烯聚合物，所述第二乙烯聚合物的密度为0.910g / cm 3或更低，其中所述聚合物共混物具有：（a）Tm 至少100℃，密度范围为0.84至0.92g / cm 3; （b）断裂伸长率在300％以上; （c）至少为1.2的应变硬化指数M300 / M100; （d）0.01rad / s下的复数粘度与100rad / s下的粘度之比至少为30; 和（e）对数（动态粘度）对log（频率）小于-0.2的曲线的剪切变薄斜率。

    Catalyst system and process for olefin polymerization
    39.
    发明授权
    Catalyst system and process for olefin polymerization 有权
    催化剂体系和烯烃聚合方法

    公开(公告)号：US07985816B2

    公开(公告)日：2011-07-26

    申请号：US12849351

    申请日：2010-08-03

    申请人： Donna J. Crowther ,  Peijun Jiang ,  George Rodriguez

    发明人： Donna J. Crowther ,  Peijun Jiang ,  George Rodriguez

    IPC分类号： C08F4/6592 ,  B01J31/22

    CPC分类号： C08F210/06 ,  B01J31/0239 ,  B01J31/146 ,  B01J31/1616 ,  B01J31/2295 ,  B01J2231/122 ,  B01J2531/48 ,  B01J2531/49 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F10/06 ,  C08F110/06 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/65908 ,  C08F2500/08 ,  C08F2500/20 ,  C08F2500/03 ,  C08F2500/17

    摘要： The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+ [Y]−, wherein [Y]− is a non-coordinating anion (NCA), A is nitrogen or phosphorus, R1 and R2 are hydrocarbyl groups or heteroatom-containing hydrocarbyl groups and together form a first, 3- to 10-membered non-aromatic ring with A, wherein any number of adjacent ring members may optionally be members of at least one second, aromatic or aliphatic ring or aliphatic and/or aromatic ring system of two or more rings, wherein said at least one second ring or ring system is fused to said first ring, and wherein any atom of the first and/or at least one second ring or ring system is a carbon atom or a heteroatom and may be substituted independently by one or more substituents selected from the group consisting of a hydrogen atom, halogen atom, C1 to C10 alkyl, C5 to C15 aryl, C6 to C25 arylalkyl, and C6 to C25 alkylaryl, and R3 is a hydrogen atom or C1 to C10 alkyl, or R3 is a C1 to C10 alkylene group that connects to said first ring and/or to said at least one second ring or ring system. The present application also relates to a process for the polymerization of olefins, preferably propylene, using this and other catalyst systems, as well as to polymers made by said process.

    摘要翻译： 本申请涉及用于烯烃聚合的新型催化剂体系，其包含具有下式的新的离子活化剂：[R 1 R 2 R 3 AH] + [Y] - ，其中[Y] - 是非配位阴离子（NCA），A是 氮或磷，R 1和R 2是烃基或含杂原子的烃基，并且与A一起形成第一个3至10元非芳族环，其中任何数量的相邻环成员可以任选地是至少一个 第二个是两个或更多个环的芳族或脂族环或脂族和/或芳族环系，其中所述至少一个第二环或环系与所述第一环稠合，并且其中第一和/或至少一个 第二环或环系是碳原子或杂原子，并且可以被一个或多个选自氢原子，卤素原子，C 1至C 10烷基，C 5至C 15芳基，C 6至C 25芳烷基， 和C 6至C 25烷基芳基，R 3是氢 原子或C1至C10烷基，或R3是连接到所述第一环和/或所述至少一个第二环或环系统的C1至C10亚烷基。 本申请还涉及使用这种和其它催化剂体系以及通过所述方法制备的聚合物来聚合烯烃，优选丙烯的方法。

    High Shrinkage Propylene-Based Films
    40.
    发明申请
    High Shrinkage Propylene-Based Films 有权
    高收缩丙烯基薄膜

    公开(公告)号：US20110065867A1

    公开(公告)日：2011-03-17

    申请号：US12992204

    申请日：2009-05-27

    申请人： Jay K. Keung ,  Peijun Jiang

    发明人： Jay K. Keung ,  Peijun Jiang

    IPC分类号： C08L23/12

    CPC分类号： C08J5/18 ,  C08J2323/14 ,  C08L23/02 ,  C08L23/0815 ,  C08L23/142 ,  C08L57/02 ,  C08L2205/02 ,  C08L2666/02

    摘要： A heat-shrinkable film. The film comprising at least one layer having at least one propylene-based polymer comprising 60 wt % to 98 wt % propylene derived units and 2 wt % to 40 wt % one or more other alpha olefins, the propylene-based polymer having: a triad tacticity of 70% or more, a heat of fusion of less than 80 J/g, a weight average molecular weight (Mw) as measured by GPC of from 70,000 to 250,000. The layer also comprises at least one thermoplastic resin and at least one hydrocarbon resin.

    摘要翻译： 热收缩膜。 所述薄膜包含至少一层具有至少一种丙烯类聚合物的丙烯类聚合物，所述丙烯类聚合物包含60重量％至98重量％的丙烯衍生单元和2重量％至40重量％的一种或多种其它α-烯烃，所述丙烯类聚合物具有：三单元组 立构规整度为70％以上，熔融热小于80J / g，通过GPC测定的重均分子量（Mw）为70,000〜250,000。 该层还包含至少一种热塑性树脂和至少一种烃树脂。