Polymerization catalyst comprising a pyridine-bis(imine)...

C - Chemistry – Metallurgy – 08 – F

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C08F 4/70 (2006.01) C07D 213/53 (2006.01) C07F 13/00 (2006.01) C07F 15/00 (2006.01) C07F 15/02 (2006.01) C07F 15/06 (2006.01) C08F 10/00 (2006.01) C08F 210/16 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01) C08F 10/02 (2006.01) C08F 110/02 (2006.01)

Patent

CA 2323476

A catalyst for the polymerisation of 1-olefins is disclosed comprising (1) a compound of formula (B) wherein M is Fe[II], Fe[III], Co[I], Co[II], Co[III], Mn[I], Mn[II], Mn[III], Mn[IV], Ru[II], Ru[III] or Ru[IV]; X represents an atom or group covalently or ionically bonded to the transition metal M; T is the oxidation state of the transition metal M and b is the valency of the atom or group X; R1, R2, R3, R4, R5, R6 and R7 are independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl; and when any two or more of R1 - R7 are hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl, said two or more can be linked to form one or more cyclic substituents; (2) an activator which is an alkylalumoxane; and (3) additionally to (2), a compound of the formula A1R3, where each R is independently C1-C12 alkyl or halo. Preferred compounds (3) include trimethylaluminium (TMA) and triisobutylaluminium (TIBA).

La présente invention concerne un catalyseur de polymérisation de 1-oléfines renfermant: (1) un composé de formule (B): dans laquelle M représente Fe[II], Fe[III], Co[I], Co[II], Co[III], Mn[I], Mn[II], Mn[III], Mn[IV], Ru[II], Ru[III] ou Ru[IV]; X représente un atome ou un groupe en liaison covalente ou ionique avec un métal de transition M; T représente l'état d'oxydation du métal de transition M et b représente la valence de l'atome ou du groupe X; R<1>, R<2>, R<3>, R<4>, R<5>, R<6> et R<7> sont choisis indépendamment entre un hydrogène, un halogène, un hydrocarbyle, un hydrocarbyle substitué, un hétérohydrocarbyle ou un hétérohydrocarbyle substitué; et lorsque au moins deux des éléments R<1>-R<7> représentent un hydrocarbyle, un hydrocarbyle substitué, un hétérohydrocarbyle ou un hétérohydrocarbyle substitué, ils peuvent être liés de façon à former un ou plusieurs substituants cycliques; et (2) un activateur qui est un alkylalumoxane; et (3) en plus de (2), un composé de formule AIR3, dans laquelle chaque R est indépendamment alkyle ou halo en C1-C12. Les composés préférés (3) comprennent du triméthylaluminium (TMA) et du triisobutylaluminium (TIBA).

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