Aluminum-free monocyclopentadienyl metallocene catalysts for olefin polymerization
    33.
    发明授权
    Aluminum-free monocyclopentadienyl metallocene catalysts for olefin polymerization 失效
    用于烯烃聚合的无铝单环戊二烯基茂金属催化剂

    公开(公告)号:US07163907B1

    公开(公告)日:2007-01-16

    申请号:US07542236

    申请日:1990-06-22

    IPC分类号: B01J31/00

    摘要: This invention relates to a catalyst system for the production of polyolefins comprising:(A) a Group IV B transition metal component represented by one of the two general formulae wherein(C5H5-y-xRx) is a cylopentadienyl ring(JR′z-l-y) is a heteroatom ligand in which J is an element with a coordination number of three from Group V-A or an element with a coordination number of two rom Group VI-A of the Periodic Table of Elements,each Q is independently, hydride, C1—C20 hydrocarbyl radicals, substituted hydrocarbyl radials wherein one or more hydrogen atoms is replaced by an electron withdrawing group, or C1—C20 hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from the group consisting of germanium and silicon, provided that Q is not a substituted or unsubstituted cyclopentadienyl ring, or both Q together may be an alkylidene, olefin, acetylene or a cyclometallated hydrocarbyl;“y” is 0 or 1; when “y” is 1, T is a covalent bridging group containing a Group IV-A or V-A element;L is a neutral Lewis base; and “w” is a number from 0 to 3;(B) an activator compound comprising (1) a cation; and (2) a compatible noncoordinating anion.

    摘要翻译: 本发明涉及一种用于生产聚烯烃的催化剂体系,其包括:(A)由以下两个通式之一表示的IVB族过渡金属组分,其中(C 5 H 5 -Y x R x x))))))))))))or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or or 元素周期表第VI-A族的配位数为2的元素,每个Q独立地为氢化物,C 1 -C 20烃基,被取代的 其中一个或多个氢原子被吸电子基团或C 1 -C 20烃基取代的准金属基团取代的烃基放射线,其中准金属离子选自 的锗和硅,条件是Q不是取代或未取代的环戊二烯基环,或两者Q可以是亚烷基,烯烃,乙炔或环金属化的氢 奥卡比 “y”为0或1; 当“y”为1时,T为含有IV-A族或V-A族元素的共价桥基; L是中性路易斯碱; 和“w”是从0到3的数字; (B)活化剂化合物,其包含(1)阳离子; 和(2)相容的非配位阴离子。

    Soluble late transition metal catalysts for olefin oligomerizations II
    34.
    发明授权
    Soluble late transition metal catalysts for olefin oligomerizations II 失效
    用于烯烃低聚的可溶性后过渡金属催化剂II

    公开(公告)号:US07161018B2

    公开(公告)日:2007-01-09

    申请号:US10449273

    申请日:2003-05-30

    IPC分类号: C07F15/00 B01J31/00 C07C2/24

    CPC分类号: C07F15/0066 C07F15/045

    摘要: A series of soluble α-diimine late transition metal catalysts has been invented. The catalysts demonstrate high activity and selectivity for linear α-olefins. As such, these catalysts conveniently oligomerize ethylene. Typical activators as known to those of ordinary skill in the art are used to activate these transition metal catalyst. These catalysts can be used in a supported or unsupported form.

    摘要翻译: 已经发明了一系列可溶性α-二亚胺晚期过渡金属催化剂。 催化剂表现出对线性α-烯烃的高活性和选择性。 因此,这些催化剂方便地使乙烯低聚。 使用本领域普通技术人员已知的典型活化剂来活化这些过渡金属催化剂。 这些催化剂可以以负载或未负载的形式使用。