Triple-decker catalysts based on delocalized dianionic ligands
    8.
    发明授权
    Triple-decker catalysts based on delocalized dianionic ligands 失效
    基于离域二离子配体的三层催化剂

    公开(公告)号:US06812183B1

    公开(公告)日:2004-11-02

    申请号:US10421062

    申请日:2003-04-23

    IPC分类号: B01J3100

    摘要: Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a triple-decker bimetallic complex. The complex includes two Group 3-10 transition metals and a delocalized dianionic ligand that is pi-bonded to each of the metals. The behavior of the catalysts can be modified by choice of each metal, by the choice of the dianionic ligand, or by choice of the ancillary ligands. The invention provides a new way to make a large variety of catalyst systems.

    摘要翻译: 公开了可用于聚合烯烃的催化剂。 催化剂包括活化剂和三层双金属络合物。 络合物包括两个3-10族过渡金属和与每种金属π键合的离域二离子配位体。 可以通过选择每种金属,通过选择二阴离子配体或通过选择辅助配体来修饰催化剂的行为。 本发明提供了一种制造各种催化剂体系的新方法。

    Process for Forming Polyolefins
    9.
    发明申请
    Process for Forming Polyolefins 有权
    聚烯烃成型工艺

    公开(公告)号:US20170022307A1

    公开(公告)日:2017-01-26

    申请号:US15289597

    申请日:2016-10-10

    IPC分类号: C08F210/02

    摘要: Processes of forming polyolefins are described herein. One or more specific embodiments of the processes generally include introducing olefin monomer selected from C2-C3 olefins into a first reaction zone under first polymerization conditions to form a first polyolefin; withdrawing a transfer effluent from the first reaction zone, the transfer effluent including first polyolefin and unreacted olefin monomer; introducing the transfer effluent, a comonomer selected from C4-C8 olefins, and additional olefin monomer to a second reaction zone under second polymerization conditions to form a second reactor product; maintaining an essentially constant comonomer:olefin monomer ratio in the second reaction zone; and withdrawing at least a portion of the second reactor product, wherein the second reactor product includes a bimodal polyolefin.

    摘要翻译: 本文描述了形成聚烯烃的方法。 该方法的一个或多个具体实施方案通常包括在第一聚合条件下将选自C 2 -C 3烯烃的烯烃单体引入第一反应区以形成第一聚烯烃; 从第一反应区抽出转移流出物,转移流出物包括第一聚烯烃和未反应的烯烃单体; 在第二聚合条件下将转移流出物,选自C 4 -C 8烯烃的共聚单体和另外的烯烃单体引入第二反应区以形成第二反应器产物; 维持第二反应区中基本上恒定的共聚单体:烯烃单体比例; 以及抽出所述第二反应器产物的至少一部分,其中所述第二反应器产物包括双峰聚烯烃。

    COMPRESSIBLE LIQUID DILUENT IN POLYOLEFIN POLYMERIZATION
    10.
    发明申请
    COMPRESSIBLE LIQUID DILUENT IN POLYOLEFIN POLYMERIZATION 有权
    聚烯烃聚合中的可压缩液体稀释

    公开(公告)号:US20110190465A1

    公开(公告)日:2011-08-04

    申请号:US12699729

    申请日:2010-02-03

    IPC分类号: C08F2/06 B01J19/00 B29C47/12

    摘要: Embodiments of the present application provide a method for manufacturing a polyolefin and a system for implementing the method. The method comprises combining a catalyst with a diluent mixture containing a diluent and an olefin monomer in a polymerization reactor. The diluent may comprise propane, butane, or isobutane, or a combination thereof. The polymerization reactor is operated at a pressure above a critical pressure of the diluent, but below the critical temperature of the diluent.

    摘要翻译: 本发明的实施方案提供了制造聚烯烃的方法和用于实施该方法的系统。 该方法包括在聚合反应器中将催化剂与含有稀释剂和烯烃单体的稀释剂混合物组合。 稀释剂可以包括丙烷,丁烷或异丁烷,或其组合。 聚合反应器在高于稀释剂的临界压力但低于稀释剂的临界温度的压力下操作。