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    • 8. 发明授权
    • Saturated tricyclic ligand containing metal complexes and olefin
polymerization process
    • 饱和三环配体含有金属络合物和烯烃聚合方法
    • US6040401A
    • 2000-03-21
    • US904363
    • 1997-08-01
    • Peter N. NickiasTobin J. MarksYasushi Obora
    • Peter N. NickiasTobin J. MarksYasushi Obora
    • C07F7/00C07F7/08C07F17/00C08F4/64C08F4/642C08F4/645C08F4/659C08F4/6592C08F10/00C08F4/44
    • C07F17/00C08F10/00C08F110/06C08F4/65908C08F4/65912C08F4/65927Y10S526/943
    • Bridged, group 4 Metal complexes useful as olefin polymerization catalyst components corresponding to the formula: L.sub.1 ZL.sub.2 MX.sub.m X'.sub.nor a dimer, solvated adduct, chelated derivative or mixture thereof, wherein:L.sub.1 is a partially saturated tricyclic group, especially octahydrofluorenyl,L.sub.2 is a substituted cyclopentadienyl group that is bound to M by means of delocalized .pi.-electrons, said cyclopentadienyl group being substituted at one and only one of its two distal positions with a bulky ligand group,Z is divalent bridging substituent,X each occurrence is a monovalent, anionic moiety having up to 40 non-hydrogen atoms, optionally, two X groups may be covalently bound together forming a divalent dianionic moiety having both valences bound to M, or, optionally 2 X groups may be covalently bound together to form a neutral, conjugated or nonconjugated diene that is bonded to M by means of delocalized .pi.-electrons (whereupon M is in the +2 oxidation state), or further optionally one or more X and one or more X' groups may be bonded together thereby forming a moiety that is both covalently bound to M and coordinated thereto;m is 1 or 2 and is equal to two less than the formal oxidation state of M, except when 2 X groups together form a neutral conjugated or non-conjugated diene that is .pi.-bonded to M, in which case m is equal to the formal oxidation state of M;X' is a neutral ligand having up to 20 non-hydrogen atoms, and n is a number from 0 to 3.
    • 桥接的第4族金属络合物可用作对应于下式的烯烃聚合催化剂组分:L1ZL2MXmX'n或二聚体,溶剂化加合物,螯合衍生物或其混合物,其中:L1是部分饱和的三环基团,特别是八氢芴基,L2是取代的 通过离域π电子与M结合的环戊二烯基,所述环戊二烯基在其两个远端位置中的一个且仅一个被取代,具有庞大的配体基团,Z是二价桥接取代基,X每次出现是一价阴离子 具有多达40个非氢原子的部分,任选地,两个X基团可以共价键合在一起形成具有与M键合的两价键的二价二阴离子部分,或者任选地,2个X基团可以共价键合在一起以形成中性,共轭或 通过离域π电子(因此M处于+2氧化态)与M键合的非共轭二烯,或进一步任选地一个或多个 X和一个或多个X'基团可以键合在一起,从而形成共价键合到M并与之配位的部分; m为1或2,并且等于小于M的形式氧化态的2,除了当两个X基团一起形成与M相连接的中性共轭或非共轭二烯时,其中m等于 M的正式氧化态; X'是具有至多20个非氢原子的中性配体,n是0至3的数。