Method for preparing ethylene polymerization catalysts
    1.
    发明申请
    Method for preparing ethylene polymerization catalysts 审中-公开
    制备乙烯聚合催化剂的方法

    公开(公告)号:US20070142220A1

    公开(公告)日:2007-06-21

    申请号:US10598147

    申请日:2005-03-07

    IPC分类号: B01J37/00

    摘要: The present invention relates to a method of preparing an ethylene polymerization catalyst, which comprises reacting a solid reaction product of magnesium halide (such as magnesium chloride), alcohol, an organic magnesium compound, and a halogen compound with a transition metal compound and an electron donor. When ethylene and a-olefin are co-polymerized by slurry polymerization in the presence of the above catalyst, the amount of wax component extracted by the polymerization solvent is very low, and the polymer particles do not agglomerate. The catalyst is prepared in the form of so uniform particles that the resultant polymer has uniform particle morphology, thus increasing bulk density.

    摘要翻译: 本发明涉及一种制备乙烯聚合催化剂的方法,该方法包括使卤化镁(如氯化镁),醇,有机镁化合物和卤素化合物的固体反应产物与过渡金属化合物和电子 捐赠者。 当在上述催化剂存在下,通过淤浆聚合将乙烯和α-烯烃共聚时,由聚合溶剂提取的蜡组分的量非常低,并且聚合物颗粒不聚集。 催化剂以均匀的颗粒的形式制备,所得聚合物具有均匀的颗粒形态,从而增加堆积密度。

    Arylphenoxy catalyst system for producing ethylene homopolymer or copolymers of ethylene and alpha-olefins
    2.
    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。