Arylphenoxy catalyst system for producing ethylene homopolymer or copolymers of ethylene and alpha-olefins
    1.
    发明申请
    Arylphenoxy catalyst system for producing ethylene homopolymer or copolymers of ethylene and alpha-olefins 审中-公开
    用于生产乙烯均聚物或乙烯和α-烯烃共聚物的芳基苯氧基催化剂体系

    公开(公告)号:US20070004586A1

    公开(公告)日:2007-01-04

    申请号:US11280930

    申请日:2005-11-15

    IPC分类号: C08F4/44 B01J31/00

    摘要: The present invention relates to an arylphenoxy catalyst system producing an ethylene homopolymer or copolymers of ethylene and α-olefins, and a method of producing an ethylene homopolymer or copolymers of ethylene and α-olefins having a high molecular weight under a high temperature solution polymerization condition using the same. The catalyst system includes a group IV arylphenoxy-based transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst. In the transition metal catalyst, a cyclopentadiene derivative and arylphenoxide as fixed ligands are located around the group IV transition metal, arylphenoxide is substituted with at least one aryl derivative and is located at the ortho position thereof, and the ligands are not crosslinked to each other. The catalyst includes an environmentally-friendly raw material, synthesis of the catalyst is economical, and thermal stability of the catalyst is excellent. It is useful for producing an ethylene homopolymer or copolymers of ethylene and α-olefins having various physical properties in commercial polymerization processes.

    摘要翻译: 本发明涉及一种生产乙烯均聚物或乙烯与α-烯烃的共聚物的芳基苯氧基催化剂体系,以及在高温溶液聚合条件下生产具有高分子量的乙烯均聚物或乙烯与α-烯烃的共聚物的方法 使用相同 催化剂体系包括IV族芳基苯氧基基过渡金属催化剂和铝氧烷助催化剂或硼化合物助催化剂。 在过渡金属催化剂中,作为固定配体的环戊二烯衍生物和芳基苯氧基位于IV族过渡金属周围,芳基酚被至少一个芳基衍生物取代,位于其邻位,配体彼此不交联 。 催化剂包括环保原料,催化剂的合成是经济的,催化剂的热稳定性优异。 在商业聚合方法中生产具有各种物理性质的乙烯均聚物或乙烯和α-烯烃的共聚物是有用的。