Process for the co-polymerization of an olefin and a vinyl...

Details Process for the co-polymerization of an olefin and a vinyl... Process for the co-polymerization of an olefin and a vinyl...

C - Chemistry, Metallurgy

08

F

C08F 212/00 (2006.01) C08F 4/62 (2006.01) C08F 210/00 (2006.01) C08F 210/02 (2006.01) C08F 210/16 (2006.01) C08F 212/04 (2006.01) C08F 4/639 (2006.01) C08F 4/6392 (2006.01)

Patent

CA 2253381

A process for the co-polymerization of at least one .alpha.-olefin and at least one vinyl aromatic monomer. The co-polymerization is carried out in the presence of a catalyst composition including at least one co-catalyst and a reduced transition metal complex. The reduced transition metal complex contains a reduced transition metal selected from groups 4-6 of the Periodic Table of the Elements, a multidentate monoanionic ligand, and at least two monoanionic ligands. In one embodiment, the reduced transition metal is selected as titanium.

Cette invention se rapporte à un procédé pour la copolymérisation d'au moins une .alpha.-oléfine et d'au moins un monomère aromatique. Cette copolymérisation est effectuée en présence d'une composition de catalyseur renfermant au moins un cocatalyseur et un complexe de métal de transition réduit. Le complexe de métal de transition réduit contient un métal de transition réduit choisi dans les groupes 4 à 6 du tableau périodique des éléments, un ligand monoanionique multidenté, et au moins deux ligands monoanioniques. Dans un mode de réalisation, le métal de transition réduit qui est choisi est le titane.

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