Polyketone polymer preparation

Details Polyketone polymer preparation Polyketone polymer preparation

C - Chemistry, Metallurgy

08

G

402/7.1

C08G 67/02 (2006.01)

Patent

CA 1338576

A process for the preparation of linear polymers of carbon monoxide with one or more olefinically unsaturated compounds, in which polymers the monomer units occur alternatingly, is disclosed. According to the invention, a mixture of carbon monoxide with one or more olefinically unsaturated compounds is contacted in a reactor with a solution of a palladium-containing catalyst composition, wherein the catalyst composition is added stepwise to the reactor. 25 to 85% of the total amount of the composition is present in the reactor at the outset of polymerization and the remainder of the catalyst composition is added only after the polymer concentration has reached a value of at least 0.2 g per 100 g polymer suspension. The polymers prepared according to the invention have a bulk density considerably higher than similar polymers known from the prior art, which makes more efficient their preparation, refining, storage, transport and processing.

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