专利详情

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.