Method for reducing depositions in polymerization vessels

Details Method for reducing depositions in polymerization vessels Method for reducing depositions in polymerization vessels

C - Chemistry, Metallurgy

08

F

C08F 10/10 (2006.01) C08F 2/01 (2006.01) C08F 2/14 (2006.01)

Patent

CA 2696102

The method of polymerization includes the steps of a) providing a catalyst system, b) providing at least one monomer or comonomer mixture in a reaction vessel, c) introducing the catalyst into the reaction vessel, and d) polymerizing the at least one monomer or comonomer mixture to produce an isoolefin polymer. The catalyst may be soluble in the diluent used for polymerization. The polymerization contact surfaces of the reaction vessel have an arithmetic average surface roughness of less than 0.3 µm (12 microinches).

L'invention concerne un procédé de polymérisation qui comprend les étapes consistant à a) prévoir un système de catalyseur, b) prévoir au moins un monomère ou un mélange de comonomères dans une cuve de réaction, c) introduire le catalyseur dans la cuve de réaction, et d) polymériser le ou les monomères ou mélanges de comonomères pour produire un polymère d'isooléfine. Le catalyseur peut être soluble dans le diluant utilisé pour la polymérisation. Les surfaces de contact de polymérisation du récipient de réaction présentent une rugosité de surface moyenne de moins de 0,3 µm (12 micropouces).

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