Mixed titanium-vanadium catalysts for solution ethylene polymerization
    5.
    发明授权
    Mixed titanium-vanadium catalysts for solution ethylene polymerization 失效
    用于溶液乙烯聚合的混合钛钒催化剂

    公开(公告)号:US6084042A

    公开(公告)日:2000-07-04

    申请号:US106164

    申请日:1998-06-29

    摘要: The present invention provides a Ziegler-Natta catalyst based on titanium and vanadium useful in solution processes for the polymerization of olefins having a low amount of aluminum and magnesium. The catalysts of the present invention have a molar ratio of magnesium to the first aluminum component from 4.0:1 to 8.0:1 and molar ratio of magnesium to titanium and vanadium from 4.0:1 to 8.0:1. The invention provides a novel catalyst preparation method to substantially increase the polymer molecular weight in the high temperature ethylene polymerization process.

    摘要翻译: 本发明提供一种基于钛和钒的齐格勒 - 纳塔催化剂,其用于具有低量铝和镁的烯烃聚合的溶液方法中。 本发明的催化剂的镁与第一铝组分的摩尔比为4.0:1至8.0:1,镁与钛和钒的摩尔比为4.0:1至8.0:1。 本发明提供了一种在高温乙烯聚合方法中大幅度提高聚合物分子量的新型催化剂制备方法。

    Dual reactor ethylene polymerization process
    6.
    发明授权
    Dual reactor ethylene polymerization process 有权
    双反应器乙烯聚合工艺

    公开(公告)号:US06277931B1

    公开(公告)日:2001-08-21

    申请号:US09386098

    申请日:1999-08-30

    IPC分类号: C08F201

    摘要: A dual reactor process for the solution and (co)polymerization of ethylene uses two different types of catalysts in the two reactors. A catalyst having a phosphinimine ligand is used in the first reactor. A Ziegler Natta catalyst is used in the second reactor. The process of this invention is comparatively easy to control and may be used to produce polyethylene products having a broad molecular weight distribution. Linear low density produced according to this invention is well suited for the manufacture of molded goods and plastic films.

    摘要翻译: 用于乙烯溶液和(共)聚合的双反应器方法在两个反应器中使用两种不同类型的催化剂。 在第一反应器中使用具有膦亚胺配体的催化剂。 在第二反应器中使用齐格勒纳塔催化剂。 本发明的方法比较容易控制,并可用于生产具有宽分子量分布的聚乙烯产品。 根据本发明生产的线性低密度非常适合于制造模制品和塑料薄膜。

    Borate activator
    7.
    发明授权
    Borate activator 失效
    硼酸盐活化剂

    公开(公告)号:US07214744B2

    公开(公告)日:2007-05-08

    申请号:US11158719

    申请日:2005-06-22

    IPC分类号: C08F4/60 C08F4/64

    摘要: A catalyst system comprising (i) a bulky ligand catalyst compound; and (ii) a novel borate activator is active for olefin polymerization. The novel borate contains at least one chelating (divalent) ligand and contains at least one fluorine atom. Preferred borate activators are provided as anilinium or carbonium salts. Highly preferred borate salts contain two perfluorinated alkoxy chelating ligands. The catalyst system may be used to produce polyethylene for “end use” applications such as polyethylene film and molded polyethylene goods.

    摘要翻译: 一种催化剂体系,其包含(i)体积大的配体催化剂化合物; 和(ii)新的硼酸盐活化剂对于烯烃聚合是有活性的。 该新型硼酸盐含有至少一种螯合(二价)配位体,并含有至少一个氟原子。 优选的硼酸盐活化剂以苯胺或碳鎓盐的形式提供。 高度优选的硼酸盐含有两个全氟化烷氧基螯合配体。 催化剂体系可用于生产用于“最终用途”应用的聚乙烯,例如聚乙烯薄膜和模塑聚乙烯制品。

    Modified (MAO + aluminum alkyl) activator
    9.
    发明申请
    Modified (MAO + aluminum alkyl) activator 审中-公开
    改性(MAO +烷基铝)活化剂

    公开(公告)号:US20060223960A1

    公开(公告)日:2006-10-05

    申请号:US11364248

    申请日:2006-02-28

    IPC分类号: C08F4/44

    摘要: A cocatalyst system for olefin polymerization comprises an aluminoxane (especially methylaluminoxane, or “MAO”), an aluminum alkyl and a halogenated phenol. The preferred halogenated phenol is pentafluorophenol. The use of pentafluorophenol permits the substitution of a portion of the MAO cocatalyst (which is expensive) with inexpensive aluminum alkyl. The cocatalyst is most preferably employed in combination with an organometallic catalyst having at lease one pi ligand.

    摘要翻译: 用于烯烃聚合的助催化剂体系包括铝氧烷(特别是甲基铝氧烷或“MAO”),烷基铝和卤代苯酚。 优选的卤代苯酚是五氟苯酚。 五氟苯酚的使用允许用廉价的烷基铝代替一部分MAO助催化剂(这是昂贵的)。 助催化剂最优选与具有至少一个π配体的有机金属催化剂组合使用。

    Novel borate activator
    10.
    发明申请
    Novel borate activator 失效
    新型硼酸盐活化剂

    公开(公告)号:US20060009596A1

    公开(公告)日:2006-01-12

    申请号:US11158719

    申请日:2005-06-22

    IPC分类号: C08F4/44

    摘要: A catalyst system comprising (i) a bulky ligand catalyst compound; and (ii) a novel borate activator is active for olefin polymerization. The novel borate contains at least one chelating (divalent) ligand and contains at least one fluorine atom. Preferred borate activators are provided as anilinium or carbonium salts. Highly preferred borate salts contain two perfluorinated alkoxy chelating ligands. The catalyst system may be used to produce polyethylene for “end use” applications such as polyethylene film and molded polyethylene goods.

    摘要翻译: 一种催化剂体系,其包含(i)体积大的配体催化剂化合物; 和(ii)新的硼酸盐活化剂对于烯烃聚合是有活性的。 该新型硼酸盐含有至少一种螯合(二价)配位体,并含有至少一个氟原子。 优选的硼酸盐活化剂以苯胺或碳鎓盐的形式提供。 高度优选的硼酸盐含有两个全氟化烷氧基螯合配体。 催化剂体系可用于生产用于“最终用途”应用的聚乙烯,例如聚乙烯薄膜和模塑聚乙烯制品。