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    Ethylene-α-olefin copolymer
    41.
    发明授权
    Ethylene-α-olefin copolymer 有权
    乙烯-α-烯烃共聚物

    公开(公告)号：US08927671B2

    公开(公告)日：2015-01-06

    申请号：US14041310

    申请日：2013-09-30

    Applicant: Sumitomo Chemical Company, Limited

    Inventor： Jumma Nomura ,  Masato Takano ,  Yoshinobu Nozue

    IPC: C08F210/16

    CPC classification number: C08F210/16 ,  C08F210/14 ,  C08F2500/01 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/19 ,  C08F2500/20 ,  C08F2500/26

    Abstract: The present invention relates to an ethylene-α-olefin copolymer satisfying the following requirements (A) to (E): (A) the MFR is 0.1 to 50 g/10 min., (B) the density is 860 to 970 kg/m3, (C) the Mz/Mw is from 3.0 to 6.0, (D) the fraction having a molecular weight of 106.5 g/mol of the ethylene-α-olefin copolymer has a branching index g′ of 0.26 or more, and (E) the Ea is 60 to 90 kJ/mol.

    Abstract translation: 本发明涉及满足以下要求（A）〜（E）的乙烯-α-烯烃共聚物：（A）MFR为0.1〜50g / 10分钟，（B）密度为860〜970kg / m3，（C）Mz / Mw为3.0〜6.0，（D）乙烯-α-烯烃共聚物的分子量为106.5g / mol的分数的分支指数g'为0.26以上，（ E）Ea为60〜90kJ / mol。

    Solid state properties of polyethylene prepared with tetrahydroindenyl-based catalyst system
    44.
    发明授权
    Solid state properties of polyethylene prepared with tetrahydroindenyl-based catalyst system 有权
    用四氢茚基基催化剂体系制备的聚乙烯的固态性质

    公开(公告)号：US08822611B2

    公开(公告)日：2014-09-02

    申请号：US12876523

    申请日：2010-09-07

    Applicant: Eric Maziers

    Inventor： Eric Maziers

    IPC: C08F4/6592 ,  C08F210/02 ,  C08F210/14 ,  C08F110/02

    CPC classification number: C08F4/76 ,  C08F4/65927 ,  C08F110/02 ,  C08F210/16 ,  Y10S526/943 ,  Y10T428/1379 ,  C08F2500/09 ,  C08F2500/13 ,  C08F2500/12

    Abstract: Rotomoulded articles and methods of forming the same are described herein. The rotomoulded articles generally have a permeability of less than 1 g/day. The rotomoulded articles generally include polyethylene obtained by injecting into a reactor a catalyst system including a metallocene catalyst component of specific formula and an activating agent; injecting into the reactor ethylene monomer at a concentration of at least 6.5 wt %; injecting an amount of hydrogen such that a ratio of hydrogen to ethylene (H2/C2) in the feed is less than 85 g/106 g; maintaining the reactor under polymerisation conditions at a temperature of less than 90° C.; and retrieving polyethylene exhibiting a melt index (MI2) of at least 3.

    Abstract translation: 本文描述了滚塑制品及其形成方法。 滚塑制品通常具有小于1g /天的渗透性。 滚塑制品通常包括通过将具有特定配方的茂金属催化剂组分和活化剂的催化剂体系注入反应器而获得的聚乙烯; 以至少6.5重量％的浓度注入反应器乙烯单体; 注入一定量的氢气使得进料中氢与乙烯的比例（H2 / C2）小于85g / 106g; 将反应器保持在低于90℃的聚合条件下; 和回收显示至少3的熔体指数（MI2）的聚乙烯。

    POLYMER RESINS WITH IMPROVED PROCESSABILITY AND MELT FRACTURE CHARACTERISTICS
    46.
    发明申请
    POLYMER RESINS WITH IMPROVED PROCESSABILITY AND MELT FRACTURE CHARACTERISTICS 有权
    聚合物树脂具有改进的可加工性和熔体断裂特性

    公开(公告)号：US20140242314A1

    公开(公告)日：2014-08-28

    申请号：US13778693

    申请日：2013-02-27

    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP

    Inventor： Yongwoo INN ,  Qing YANG

    IPC: C08F210/16 ,  B32B1/08

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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。

    Branched Vinyl Terminated Polymers and Methods for Production Thereof
    49.
    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：US20130261277A1

    公开(公告)日：2013-10-03

    申请号：US13901105

    申请日：2013-05-23

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Peijun Jiang ,  Patrick Brant

    IPC: C08F110/06 ,  C08F210/06

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

    Abstract: 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.

    Abstract translation: 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。

    Supported polymerisation catalysts
    50.
    发明授权
    Supported polymerisation catalysts 失效
    负载型聚合催化剂

    公开(公告)号：US08536081B2

    公开(公告)日：2013-09-17

    申请号：US11667466

    申请日：2005-11-10

    Applicant: Grant Berent Jacobsen ,  Dusan Jeremic ,  Sergio Mastroianni ,  Ian Douglas McKay

    Inventor： Grant Berent Jacobsen ,  Dusan Jeremic ,  Sergio Mastroianni ,  Ian Douglas McKay

    IPC: B01J31/38 ,  B01J31/00 ,  C08F4/52 ,  C08F4/64 ,  C08F4/76

    CPC classification number: C08F10/00 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/16 ,  C08F2420/02 ,  C08F2420/04 ,  Y02P20/52 ,  C08F4/6592 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/09

    Abstract: Supported catalyst system for the polymerization of olefins, having at least two different monocyclopentadienyl transition metal compounds, one or more activators including an ionic compound having (i) a cation and (ii) an anion having up to 100 non-hydrogen atoms and the anion containing at least one substituent comprising a moiety having an active hydrogen, and one or more support materials. The supported “mixed or dual site” catalyst systems having different monocyclopentadienyl catalysts when activated by specific ionic activators lead to catalyst systems showing an improved balance of properties which may be used to prepare LLDPE polymers having broad melt flow ratios.

    Abstract translation: 用于烯烃聚合的负载催化剂体系，其具有至少两种不同的单环戊二烯基过渡金属化合物，一种或多种活化剂，其包括具有（i）阳离子和（ii）具有至多100个非氢原子的阴离子的离子化合物和阴离子 含有至少一个包含具有活性氢的部分的取代基和一种或多种载体材料。 当由特定的离子活化剂活化时，具有不同单环戊二烯基催化剂的“混合或双位点”催化剂体系导致催化剂体系显示改进的性能平衡，其可用于制备具有宽熔体流动比的LLDPE聚合物。

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