| 专利名称 | Catalysts used for olefine polymerization and the preparation thereof | 申请号 | US20010853527 | 专利类型 | US | 公开（公告）号 | US6800774 | 公开（授权）日 | 2004.10.05 | 申请（专利权）人 | 中国科学院长春应用化学研究所 | 发明（设计）人 | LI YUESHENG (CN); DAI KE (CN); LIU JINGYU (CN); ZHENG YI (CN) | 主分类号 | C07F15/02 | IPC主分类号 | C07F15/02;C08F4/06;C08F110/02;G01J31/00 | 专利有效期 | Catalysts used for olefine polymerization and the preparation thereof 至Catalysts used for olefine polymerization and the preparation thereof | 法律状态 | 说明书摘要 | The present invention provides a polynuclear alpha-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. |
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