Improved gas phase process for forming polyketones

Details Improved gas phase process for forming polyketones Improved gas phase process for forming polyketones

C - Chemistry, Metallurgy

08

G

C08G 67/02 (2006.01)

Patent

CA 2138028

Polyketones can be formed in enhanced yield by conducting the polymerization of the carbon monoxide and olefin mon- omers used to form the polyketone in a gas phase polymerization process in the presence of a catalyst support which is substan- tially saturated with an amount of a liquid, non-polymerizable diluent, for example, an organic diluent, which is effective in in- creasing the amount of polyketone formed over that which would be formed in the substantial absence of the diluent. Preferably, the catalyst is supported on a high surface area polyketone support (e.g., a carbon monoxide-ethylene high surface area support). Hydrogen gas can be used to reduce the molecular weight and increase the bulk density and thermal stability of the polyketone product.

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