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    Solid catalyst component for olefin polymerization
    1.
    发明授权
    Solid catalyst component for olefin polymerization 有权

    公开(公告)号：US11840595B2

    公开(公告)日：2023-12-12

    申请号：US17392684

    申请日：2021-08-03

    申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

    发明人： Masaki Ito

    IPC分类号： C08F4/16 ,  C08F4/12

    CPC分类号： C08F4/16 ,  C08F4/12

    摘要： To produce an olefin-based polymer having a minor amount of decrease in bulk density due to heat.
    A solid catalyst component for olefin polymerization containing a titanium atom, a magnesium atom, a halogen atom, and as internal electron donor, and having an envelope E1 calculated by the following Formula (1) in a range of 0.810 to 0.920.

    E1=LE1/LS1  (1)

    (In Formula, LE1 is a convex hull perimeter of the solid catalyst component for olefin polymerization obtained from an image of the solid catalyst component for olefin polymerization captured with a scanning electron microscope, and LS1 is an actual perimeter of the solid catalyst component for olefin polymerization obtained from the image of the solid catalyst component for olefin polymerization captured with the scanning electron microscope.)

    Method for producing one or more ethylene-based polymers
    2.
    发明授权
    Method for producing one or more ethylene-based polymers 有权

    公开(公告)号：US09988475B2

    公开(公告)日：2018-06-05

    申请号：US14902128

    申请日：2014-08-18

    申请人： Dow Global Technologies LLC

    发明人： Linfeng Chen ,  Robert J. Jorgensen ,  Stephanie M. Whited

    IPC分类号： C08F2/38 ,  C08F4/12 ,  C08F26/00 ,  C08F210/16

    CPC分类号： C08F210/16 ,  C08F2/40 ,  C08F2/38 ,  C08F4/6494 ,  C08F4/6543 ,  C08F4/025 ,  C08F210/14 ,  C08F2/34 ,  C08F2/14

    摘要： The instant invention provides a method for polymerizing one or more ethylene-based polymers. The method for polymerizing one or more ethylene-based polymers according to the present invention comprises the following steps: (1) selecting ethylene and optionally one or more alpha-olefin comonomers; (2) selecting one or more catalyst systems comprising one or more procatalysts comprising Ti, one or more cocatalysts comprising Al, and one or more self-limiting agents (SLA); wherein the ratio of SLA to Ti is from 5:1 to 40:1 and the ratio of Al to SLA is from 2:1 to 40:1; (3) polymerizing said ethylene and optionally one or more alpha-olefin comonomers in the presence of said one or more catalyst systems via a slurry polymerization process or gas-phase polymerization process in one or more reactors; (4) thereby producing one or more ethylene; wherein said catalyst system has a loss of least 85% of catalyst productivity when the temperature is increased from 85 to 115 C.

    Method and device for optimising catalyst supply to a polymerisation reactor
    5.
    发明授权
    Method and device for optimising catalyst supply to a polymerisation reactor 有权
    优化催化剂供应到聚合反应器的方法和装置

    公开(公告)号：US08258245B2

    公开(公告)日：2012-09-04

    申请号：US12778401

    申请日：2010-05-12

    申请人： Louis Fouarge

    发明人： Louis Fouarge

    IPC分类号： C08F4/00 ,  C08F4/12 ,  B01J19/00

    CPC分类号： B01J8/20 ,  B01J8/0035 ,  B01J19/2435 ,  B01J2208/00548 ,  B01J2208/00663 ,  B01J2208/00752 ,  B01J2219/00069 ,  B01J2219/002 ,  B01J2219/00213 ,  B01J2219/00231 ,  C08F10/00 ,  C08F2/14

    摘要： Methods for supplying a catalyst to an ethylene slurry loop polymerization reactor and polymers formed therefrom are described herein. The method generally includes preparing a catalyst slurry in a preparation vessel wherein the slurry includes a hydrocarbon diluent liquid which contains a Ziegler-Natta catalyst; supplying the catalyst slurry from the preparation vessel to a buffer vessel; withdrawing the catalyst slurry from the buffer vessel and supplying the catalyst slurry to a slurry loop polymerization reactor in which ethylene is polymerized; mixing a co-catalyst with the Ziegler Natta catalyst in the slurry prior to the supplying of the catalyst slurry to the slurry loop polymerization reactor; and controlling the transfer of catalyst slurry from the preparation vessel to the buffer vessel and the withdrawal of catalyst slurry from the buffer vessel to maintain the level of catalyst slurry in the buffer vessel substantially constant relative to the level of catalyst slurry in the preparation vessel.

    摘要翻译： 本文描述了将催化剂供应到乙烯淤浆环路聚合反应器和由其形成的聚合物的方法。 该方法通常包括在制备容器中制备催化剂浆料，其中浆料包括含有齐格勒 - 纳塔催化剂的烃稀释液; 将催化剂浆料从制备容器供应到缓冲容器; 将催化剂浆料从缓冲容器中取出并将催化剂浆料供给到其中聚合乙烯的浆料回路聚合反应器; 在将催化剂浆料供应到浆料回路聚合反应器之前，将浆料中的齐格勒纳塔催化剂与助催化剂混合; 并且控制催化剂浆料从制备容器向缓冲容器的转移以及从缓冲容器中取出催化剂浆料，以使缓冲容器中的催化剂浆液的水平相对于制备容器中的催化剂浆液的水平基本上恒定。

    Polymerization methods using the catalysts
    8.
    发明授权
    Polymerization methods using the catalysts 有权
    使用催化剂的聚合方法

    公开(公告)号：US07868105B2

    公开(公告)日：2011-01-11

    申请号：US11581470

    申请日：2006-10-17

    申请人： Young Keun Chung ,  Il Gu Jung ,  Sung Ho Chun ,  Young Whan Park ,  Dai Seung Choi ,  Sung Cheol Yoon ,  TaeSun Lim ,  Jungmin Lee

    发明人： Young Keun Chung ,  Il Gu Jung ,  Sung Ho Chun ,  Young Whan Park ,  Dai Seung Choi ,  Sung Cheol Yoon ,  TaeSun Lim ,  Jungmin Lee

    IPC分类号： C08F4/06 ,  C08F4/12 ,  C08F4/16

    CPC分类号： C08F4/70 ,  C08F32/08

    摘要： Provided is a method of preparing a cyclic olefin polymer by addition polymerization of a cyclic olefin monomer, the method including contacting a metal catalyst complex represented by Formula 1 below with a cyclic olefin monomer represented by Formula 2 below: [M(L1)x(L′2)y(L3)z]a[Ani]b    wherein M is a Group X metal; [M(L1)x(L′2)y(L3)z] is a cationic complex; L1 is an anionic hydrocarbyl-containing ligand; L′2 is a neutral ligand; L3 is an N-heterocyclic carbene ligand; [Ani] is an anion capable of weakly coordinating with the metal M; x is 1 or 2; y is 0 to 4; z is 1 or 2; 2≦x+y+z≦6; a and b are respectively the number of cations and the number of anions capable of weakly coordinating with the metal M and are each a number of 1-10 which is used to satisfy the net charge balance of the metal catalyst complex, and wherein for each of L1, L′2, and L3, when a plurality of ligands are present in a molecule of the metal catalyst complex, the ligands may be the same or different, and wherein m is an integer of 0 to 4; and R7, R′7, R″7, and R″′7 are each independently a polar functional group or a nonpolar functional group.According to the method of the present invention, a high molecular weight cyclic olefin addition polymer can be produced in a high yield even when using a polar functional group-containing cyclic olefin monomer. A polymer produced using the method shows good thermal stability.

    摘要翻译： 提供一种通过环状烯烃单体的加成聚合制备环状烯烃聚合物的方法，该方法包括使由下述通式1表示的金属催化剂配合物与由下式2表示的环状烯烃单体接触：[M（L1）x（ L'2）y（L3）z] a [Ani] b式1其中M是X族金属; [M（L1）x（L'2）y（L3）z]是阳离子络合物; L1是含阴离子烃基的配体; L'2是中性配体; L3是N-杂环卡宾配体; [Ani]是能够与金属M弱配位的阴离子; x为1或2; y为0〜4; z为1或2; 2＆nlE; x + y + z＆nlE; 6; a和b分别是能够与金属M弱配位的阳离子数和阴离子数，并且各自为1-10，其用于满足金属催化剂络合物的净电荷平衡，并且其中对于每个 的L 1，L 2和L 3，当多个配体存在于金属催化剂配合物的分子中时，配体可以相同或不同，并且其中m为0-4的整数; 并且R 7，R'7，R“7和R”'7各自独立地为极性官能团或非极性官能团。 根据本发明的方法，即使使用含极性官能团的环状烯烃单体，也可以高产率地制造高分子量环状烯烃加成聚合物。 使用该方法制备的聚合物显示出良好的热稳定性。