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    • 1. 发明授权
    • Polymerization catalyst and method for producing polyolefin or olefin
block copolymer using the same
    • 聚合催化剂及使用其制备聚烯烃或烯烃嵌段共聚物的方法
    • US5527751A
    • 1996-06-18
    • US266390
    • 1994-06-27
    • Kunihiro InamatsuTsuyoshi MatsumotoKazuo Soga
    • Kunihiro InamatsuTsuyoshi MatsumotoKazuo Soga
    • C08F10/00C08F297/06C08F4/52
    • C08F297/06C08F10/00
    • A polymerization catalyst comprising a reaction product of an organic rare earth metal compound of the formula (I),Cp.sub.a Lx.sub.b M.sub.c D.sub.d (I)(wherein in the formula (I), Cp is a substituted or unsubstituted cyclopentadienyl group, indenyl group, fluorenyl group or their derivatives, or a multidentate coordination compound residue obtained by bonding these groups by way of hydrocarbon or silicon,L is a metal selected from the group consisting of elements having an atomic number of 39 and 57-71,X is a halogen atom,M is an alkaline metal or alkaline earth metal,D is an electron donor,a is 1-2,b is 1-2,c is 0-1, andd is 0-3) with a Grignard reagent of the formula (II),RMgX (II)wherein in the formula (II), R is a hydrocarbon group, and X is a halogen atom); a method for producing a polyolefin or an olefin block copolymer by using the above-mentioned catalyst; and an olefin block copolymer produced by the above-mentioned method.
    • 包含式(I)的有机稀土金属化合物,CpaLxbMcDd(I)的反应产物的聚合催化剂,其中在式(I)中,Cp为取代或未取代的环戊二烯基,茚基,芴基或它们的 衍生物或通过烃或硅键合这些基团而获得的多齿配位化合物残基,L是选自原子序数为39和57-71的元素的金属,X为卤素原子,M为 碱金属或碱土金属,D为电子给体,a为1-2,b为1-2,c为0-1,d为0-3)与式(II)的格利雅试剂反应, RMgX(II)其中在式(II)中,R是烃基,X是卤素原子); 使用上述催化剂制造聚烯烃或烯烃嵌段共聚物的方法; 和通过上述方法制备的烯烃嵌段共聚物。