PROCESS FOR PREPARATION OF BUTYL RUBBER HAVING BROAD MOLECULAR WEIGHT DISTRIBUTION

摘要

A process for preparing a butyl polymer having a broad molecular weightdistribution. The process comprises the step of contacting a C4 to C8monoolefin monomers with a C4 to C14 multiolefin monomer at a temperature inthe range of from about -100 ~C to about +50 ~C in the presence of a diluentand a catalyst mixture comprising a major amount of a dialkylalumium halide, aminor amount of a monoalkylaluminum dihalide, and a minute amount of analuminoxane.