Polymerization catalyst and method for producing polyolefin or olefin
block copolymer using the same
    2.
    发明授权
    Polymerization catalyst and method for producing polyolefin or olefin block copolymer using the same 失效
    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

    公开(公告)号:US5527751A

    公开(公告)日:1996-06-18

    申请号:US266390

    申请日:1994-06-27

    IPC分类号: C08F10/00 C08F297/06 C08F4/52

    CPC分类号: C08F297/06 C08F10/00

    摘要: 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.

    摘要翻译: 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。