Homogeneous olefin polymerization catalyst by abstraction with lewis
acids
    2.
    发明授权
    Homogeneous olefin polymerization catalyst by abstraction with lewis acids 失效
    均相烯烃聚合催化剂与路易斯酸的萃取

    公开(公告)号:US5721185A

    公开(公告)日:1998-02-24

    申请号:US876268

    申请日:1992-05-05

    摘要: A process for preparing addition polymerization catalysts having a limiting charge separated structure corresponding to the formula: LMX.sup.+ XA.sup.-, wherein: L is a derivative of a substituted delocalized .pi.-bonded group imparting a constrained geometry to the metal active site and containing up to 50 nonhydrogen atoms; M is a metal of Group 4 or the Lanthanide series of the Periodic Table of the Elements; X independently each occurrence is hydride or a hydrocarbyl, silyl or germyl group having up to 20 carbon, silicon or germanium atoms; and A.sup.- is an anion of a Lewis acid, A, having relative Lewis acidity greater than or equal to that of phenylbis(perfluorophenyl)borane, said anion being compatible with the metal cation, the steps of the process comprising contacting a derivative of a Group 4 or Lanthanide metal corresponding to the formula: i LMX.sub.2, wherein L, M, and X are as previously defined, with the Lewis acid, A, under conditions to cause abstraction of X and formation of the anion XA.sup.-.

    摘要翻译: 一种制备具有对应于下列通式的极限电荷分离结构的加成聚合催化剂的方法:LMX + XA-,其中:L是取代的离域π键合基团的衍生物,其赋予金属活性位点约束几何形状, 50个非氢原子; M是第4族金属或元素周期表的镧系元素; 独立地,每次出现氢化物或具有至多20个碳,硅或锗原子的烃基,甲硅烷基或甲硅烷基; A是具有大于或等于苯基双(全氟苯基)硼烷的相对路易斯酸度的路易斯酸A的阴离子,所述阴离子与金属阳离子相容,所述方法的步骤包括使 在引起X的抽出和形成阴离子XA-的条件下,与路易斯酸A相对应的式4或镧系金属,其中L,M和X如前所定义。

    Allyl containing metal complexes and olefin polymerization process
    10.
    发明授权
    Allyl containing metal complexes and olefin polymerization process 失效
    含烯丙基的金属络合物和烯烃聚合方法

    公开(公告)号:US5892076A

    公开(公告)日:1999-04-06

    申请号:US815913

    申请日:1997-03-11

    申请人: Peter N. Nickias

    发明人: Peter N. Nickias

    摘要: Metal complexes useful as olefin polymerization catalysts corresponding to the formula: ##STR1## or a dimer, solvated adduct, chelated derivative or mixture thereof, wherein:Q is a cyclic group or Y*, that is bound to M by means of a delocalized .pi.-bond, said group containing up to 50 nonhydrogen atoms;M is a metal of Group 3, 4 or the Lanthanide series of the Periodic Table of the Elements;Z is a covalently bound, divalent substituent of up to 50 non-hydrogen atoms having the formula, --(ER.sub.2).sub.m --, wherein E independently each occurrence is carbon, silicon or germanium, R independently each occurrence is selected from the group consisting of hydrocarbyl, hydrocarbyloxy, silyl, and germyl of up to 20 atoms other than hydrogen, and m is an integer from 1 to 3;Y* is an allyl or a hydrocarbyl-, silyl- or germyl-substituted allyl group containing up to 20 nonhydrogen atoms bonded to Z and bonded via an .eta..sup.3 -.pi. bond to M;L is a neutral confugated diene ligand having up to 20 non-hydrogen atoms;X" independently each occurrence is a monovalent, anionic moiety selected from hydride, halo, hydrocarbyl, silyl, germyl, hydrocarbyloxy, amide, siloxy, halohydrocarbyl, halosilyl, silylhydrocarbyl, and aminohydrocarbyl having up to 20 non-hydrogen atoms, or two X" groups together form a divalent hydrocarbadiyl group;n is a number from 0 to 3; andp is an inteaer from 0 to 2.

    摘要翻译: 可用作对应于下式的烯烃聚合催化剂的金属络合物:或其二聚物,溶剂化加合物,螯合衍生物或其混合物,其中:Q是环状基团或Y *,其通过离域pI 所述基团含有多达50个非氢原子; M是元素周期表第3,4族金属或镧系元素; Z是具有式 - (ER 2)m - 的多达50个非氢原子的共价结合的二价取代基,其中E独立地每次出现为碳,硅或锗,R各自独立地选自 烃基,烃氧基,甲硅烷基和除氢以外的至多20个原子的甲锗烷基,m是1至3的整数; Y *是含有至多20个非氢原子的烯丙基或烃基 - 甲硅烷基或甲锗烷基取代的烯丙基,其与Z键合并通过η3键连接至M; L是具有至多20个非氢原子的中性配位二烯配体; X“独立地是选自氢化物,卤素,烃基,甲硅烷基,甲硅烷基,烃氧基,酰胺,甲硅烷氧基,卤代烃基,卤代甲硅烷基,甲硅烷基烃基和具有至多20个非氢原子的氨基烃基的一价阴离子部分,或两个X 一起形成二价烃基; n是从0到3的数字; 并且p是从0到2的内部。