Catalyst compounds with beta-diiminate anionic ligands and...

C - Chemistry – Metallurgy – 08 – F

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C08F 4/62 (2006.01) C07F 7/00 (2006.01) C07F 9/00 (2006.01) C07F 11/00 (2006.01) C07F 19/00 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2321419

The present invention relates to catalyst systems, processes for making such catalysts, intermediates for such catalysts, and olefin polymerization processes using such catalysts wherein such catalyst includes a component represented by formula (I), optionally (a), wherein, R and R' independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl or organosilyl radical; R1, R2 and R3 independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl radical; and M is a group IIIB, IVB, VB, VIIB or VIII transition metal; T independently represents a univalent anionic ligand such as a hydrogen atom, or a substituted or unsubstituted hydrocarbyl, halogeno, aryloxido, arylorganosilyl, alkylorganosilyl, amido, arylamido, phosphido, or arylphosphido group, or two T groups taken together represent an alkylidene or a cyclometallated hydrocarbyl bidentate ligand; L independently represents a sigma donor stabilizing ligand; X, which is optional, represents a relatively weakly coordinated anion; and a = 0 to 4 inclusive, b = 0 to 4 inclusive, provided a+b4.

La présente invention porte sur des systèmes de catalyseurs, sur des procédés de fabrication et les intermédiaires de ces catalyseurs, ainsi que sur des procédés de polymérisation d'oléfines utilisant ces catalyseurs. Ce catalyseur comprend un composant représenté par la formule (I) à variante (a) dans laquelle R et R' représentent, indépendamment, un atome d'hydrogène, ou un hydrocarbyle substitué ou non substitué, ramifié ou non ramifié ou un radical organosilyl; R?1¿, R?2¿ et R?3¿ représentent, indépendamment, un atome d'hydrogène, un radical hydrocarbyle substitué ou non substitué, ramifié ou non ramifié; et M est un métal de transition des groupes IIIB, IVB, VB, VIB, VIIB ou VIII. T représente indépendamment un ligand anionique univalent tel qu'un atome d'hydrogène, ou un hydrocarbyle substitué ou non substitué, halogéno, aryloxido, arylorganosilyl, alkylorganosilyl, amido, arylamido, phosphido ou un groupe arylphosphido, ou deux groupes T qui, réunis, représentent un alkylidène ou un ligand bidentate hydrocarbyle cyclométallisé; L représente, indépendamment, un ligand stabilisant un donneur sigma; X, qui est optionnel, représente un anion à relativement faible coordination; et a = 0 à 4 inclus; b = 0 à 4 inclus, à condition que a+b?4.

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