Preparation of multimodal polymer compositions using...

Details Preparation of multimodal polymer compositions using... Preparation of multimodal polymer compositions using...

C - Chemistry, Metallurgy

08

F

C08F 10/02 (2006.01) C08F 4/642 (2006.01) C08F 12/04 (2006.01) C08F 36/04 (2006.01) C08L 23/04 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2306987

A process is provided for preparing polymer compositions which are multimodal in nature. The process involves contacting, under polymerization conditions, a selected addition polymerizable monomer with a metallocene catalyst having two or more distinct and chemically different active sites, and a catalyst activator. The catalyst has structure (Z).

Cette invention se rapporte à un procédé qui permet de préparer des compositions polymères de nature multimodale et qui consiste à cet effet à mettre en contact, dans des conditions de polymérisation, un monomère polymérisable d'addition sélectionné avec un catalyseur en métallocène ayant au moins deux sites actifs distincts et chimiquement différents, ainsi qu'un activateur catalytique. Ce catalyseur est représenté par la structure (Z).

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