Metallocenes and catalysts for olefin-polymerisation
    7.
    发明授权
    Metallocenes and catalysts for olefin-polymerisation 有权
    用于烯烃聚合的茂金属和催化剂

    公开(公告)号:US06451724B1

    公开(公告)日:2002-09-17

    申请号:US09341438

    申请日:1999-07-08

    IPC分类号: C08F1700

    摘要: A class of metallocenes of formula (I): (ZR1m)n(Cp)(A)rMLpL′q(I) wherein (ZR1m)n, is a divalent group bridging Cp and A, Cp is a heterocyclic cyclopentadienyl group of formula (II) or (II′), wherein one of X or Y is a single bond, the other being an heteroatom; R2 and R3 are hydrogen, halogen or a hydrocarbon radical, optionally containing heteroatoms; R4 is halogen or an hydrocarbon radical, optionally containing heteroatoms; the group A is a cyclopentadienyl derivative or is equal to Cp; M is Ti, Zr or Hf; m is 1 or 2; n ranges from 0 to 4; r is 0 or 1; p and q range from 0 to 3; and a ranges from 0 to 4. Moreover, are disclosed catalyst systems containing these metallocenes, useful in the polymerization of olefins.

    摘要翻译: 一类式(I)的金属茂:(ZR1m)n(Cp)(A)rMLpL'q(I)其中(ZR1m)n是桥接Cp和A的二价基团,Cp是式(I)的杂环环戊二烯基 II)或(II'),其中X或Y中的一个是单键,另一个是杂原子; R2和R3是氢,卤素或烃基,任选地含有杂原子; R 4是卤素或烃基,任选地含有杂原子; A组是环戊二烯基衍生物或等于Cp; M是Ti,Zr或Hf; m为1或2; n的范围为0到4; r为0或1; p和q范围从0到3; 并且其范围为0至4.此外,公开了含有这些茂金属的催化剂体系,其可用于烯烃的聚合。