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    Preparation of biscyclopentadienyl diene complexes
    2.
    发明授权
    Preparation of biscyclopentadienyl diene complexes 失效
    双环戊二烯基二烯配合物的制备

    公开(公告)号：US5679816A

    公开(公告)日：1997-10-21

    申请号：US582324

    申请日：1996-01-03

    Applicant: Francis J. Timmers ,  David D. Devore ,  David R. Neithamer

    Inventor： Francis J. Timmers ,  David D. Devore ,  David R. Neithamer

    IPC: C07F7/00 ,  C07F17/00

    CPC classification number: C07F17/00 ,  Y10S526/943

    Abstract: Biscyclopentadienyl, Group 4 transition metal complexes containing a conjugated diene ligand group wherein the diene is bound to the transition metal either in the form of .sigma.-complex or a .pi.-complex are readily prepared by reacting in any order: a) a Group 4 metal salt corresponding to the formula M'X.sub.3 or M"X.sub.4, or a Lewis base adduct thereof, b) a conjugated diene, D', c) a reducing agent, and d) a compound of the formula: CpM* or (Cp-Cp)M*n.sub.n, wherein, M' is titanium, zirconium or hafnium in the +3 formal oxidation state; M" is titanium, zirconium or hafnium in the +4 formal oxidation state; X is a halide, C.sub.1-6 hydrocarbyloxy or di(C.sub.1-6 hydrocarbyl)amido group; D' is an uncoordinated diene having the same number of carbons as D and the same substitution pattern as D; M* is a Group 1 or 2 metal cation, a Grignard reagent cation or a tri(C.sub.1-4 hydrocarbyl)silyl group; and n is 1 when M* is a Group 2 metal cation and n is 2 when M* is a Group 1 metal cation, a Grignard reagent cation, or a trihydrocarbylsilyl group with the proviso that reagents a), and d) are not contacted with one another in the absence of reagent c).

    Abstract translation: 双环戊二烯基，含有共轭二烯配体基团的第4族过渡金属络合物，其中二烯与σ-复合物或π-复合物形式的过渡金属结合，可容易地通过以下顺序制备：a）第4族金属 对应于式M'X3或M'X4的盐或其路易斯碱加合物，b）共轭二烯，D'，c）还原剂，和d）下式化合物：CpM *或（Cp -Cp）M * nn，其中，M'是+3形式氧化态的钛，锆或铪; M“是+4形式氧化态的钛，锆或铪; X是卤素，C 1-6烃氧基或二（C 1-6烃基）酰氨基; D'是具有与D相同数目的碳和与D相同的取代模式的不饱和二烯烃; M *是1或2族金属阳离子，格氏试剂阳离子或三（C 1-4烃基）甲硅烷基; 当M *为第2族金属阳离子时，n为1，当M *为1族金属阳离子时，n为2，格利雅试剂阳离子或三烃基甲硅烷基，条件是试剂a）和d）未接触 在不存在试剂c）的情况下。

    Boratabenzene cocatalyst with metallocene catalyst
    4.
    发明授权
    Boratabenzene cocatalyst with metallocene catalyst 失效
    硼酸钡助催化剂与金属茂催化剂

    公开(公告)号：US06255246B1

    公开(公告)日：2001-07-03

    申请号：US09487399

    申请日：2000-01-18

    Applicant: David D. Devore ,  Francis J. Timmers ,  David R. Neithamer

    Inventor： David D. Devore ,  Francis J. Timmers ,  David R. Neithamer

    IPC: B01J3100

    CPC classification number: C08F10/00 ,  C08F4/61908 ,  C08F4/61916 ,  C08F4/6192 ,  C08F4/65908

    Abstract: Boratabenzene cocatalysts, especially novel pentafluorophenyl boratabenzenes, are useful cocatalysts or activators with metallocenes. They are less expensive than prior art activators, are soluble and offer more irreversible reactions. Compositions comprise at least one metallocene catalyst and at least one dihydroboratabenzene or anion thereof. Processes include polymerizations with metallocenes in the presence of a boratabenzene cocatalyst.

    Abstract translation: 硼化物助催化剂，特别是新的五氟苯基硼苯偶氮，是有用的助催化剂或具有金属茂的活化剂。 它们比现有技术的活化剂便宜，是可溶的并且提供更多的不可逆反应。 组合物包含至少一种金属茂催化剂和至少一种二氢硼烷基或其阴离子。 方法包括在硼烷偶合助催化剂存在下与金属茂的聚合。

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