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    • 1. 发明授权
    • Catalysts used for olefine polymerization and the preparation thereof
    • 用于烯烃聚合的催化剂及其制备
    • US06800774B2
    • 2004-10-05
    • US09853527
    • 2001-05-10
    • Yuesheng LiJingyu LiuKe DaiYi Zheng
    • Yuesheng LiJingyu LiuKe DaiYi Zheng
    • C07F1502
    • C07F15/045C08F10/00C08F110/02C08F2410/03C08F2500/21C08F2500/01C08F2500/09C08F4/7006
    • The present invention provides a polynuclear &agr;-diimine Ni(II) complex used as the precursor of the catalyst in polymerizing polyolefine, represented by the following formula: wherein M is Ni; X is Cl or Br; m and n is independently an integer from 0 to 100, respectively; R1 and R2 is the same or different, and is selected from the group consisting of H, methyl, ethyl, isopropyl and tert-butyl; Y is CR3R4, wherein R3 and R4 is the same or different, and is selected from the group consisting of H, methyl, ethyl, propyl, butyl and phenyl, or R3 and R4 forming a cyclic alkyl group; R5 and R6 is the same or different, and is selected from the group consisting of methyl, ethyl, propyl and heterocyclic group; Q is a cyclic divalent residual group of the following formula or a mixture thereof: The compound of this invention can be used to catalyze the polymerization of ethylene and to prepare high molecular weight branched polyethylene.
    • 本发明提供用作聚合聚烯烃催化剂前体的多核α-二亚胺Ni(II)络合物,由下式表示:其中M为Ni; X是Cl或Br; m和n分别为0至100的整数; R1和R2相同或不同,选自H,甲基,乙基,异丙基和叔丁基; Y是CR 3 R 4,其中R 3和R 4相同或不同,并且选自H,甲基,乙基,丙基,丁基和苯基,或R3和R4形成环状烷基; R5和R6相同或不同,并且选自甲基,乙基,丙基和杂环基; Q是下式的环状二价残基或其混合物:本发明的化合物可用于催化乙烯的聚合和制备高分子量支化聚乙烯。