An improved process for the preparation of butyl rubber...

Details An improved process for the preparation of butyl rubber... An improved process for the preparation of butyl rubber...

C - Chemistry, Metallurgy

08

F

C08F 210/12 (2006.01) C08F 236/08 (2006.01)

Patent

CA 2329552

A process for preparing a butyl polymer, the process comprising contacting a C4 to C8 monoolefin monomer with a C4 to C14 multiolefin monomer at a temperature in the range of from about -100°C to about +50°C in the presence of a diluent and a catalyst mixture comprising a monoalkylaluminum dihalide and an aluminoxane, with the proviso that the catalyst mixture does not contain a dialkylaluminum monohalide.

Un processus pour préparer du polymère de butyle. Le processus comprend la mise en contact d'un monomère avec un monomère de multioléfine C4 à C14 à une température dans la gamme d'environ -100 à +50 degrés celcius en présence d'un diluant et d'un mélange de catalyseur comprenant un dihalide de monoalkylaluminium et un aluminoxane, à condition que le mélange de catalyseur ne contienne pas de monohalide de dialkylaluminium.

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