C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 210/08 (2006.01) C08F 210/12 (2006.01) C08F 210/14 (2006.01) C08F 236/00 (2006.01)
Patent
CA 2406602
A process for preparing a butyl polymer having a broad molecular weight distribution. The process comprises the step of contacting a C4 to C8 monoolefin monomers 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 major amount of a dialkylalumium halide, a minor amount of a monoalkylaluminum dihalide, and a minute amount of an aluminoxane.
L'invention concerne un procédé de préparation d'un polymère de butyle à ample répartition de masse moléculaire. Ce procédé consiste à mettre en contact un monomère mono-oléfinique C¿4?-C¿8? avec un monomère multi-oléfinique C¿4?-C¿14? à une température d'environ -100 ·C à environ +50 ·C en présence d'un diluant et d'un mélange catalyseur comprenant une quantité supérieure d'un halogénure de dialkylaluminum, une quantité inférieure d'un dihalogénure de monoalkylaluminum, et une quantité minime d'un aluminoxane.
Bayer Inc.
Smart & Biggar
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