Process for the preparation of polyketones

Details Process for the preparation of polyketones Process for the preparation of polyketones

C - Chemistry, Metallurgy

08

G

402/7.1

C08G 67/02 (2006.01)

Patent

CA 1239725

A B S T R A C T PROCESS FOR THE PREPARATION OF POLYKET0NES A process for the preparation of polyketones by polymerizing a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group VIII metal catalyst containing 1igands, which comprise hydrocarbon groups that are bonded to an element from group Vb, characterized in that, as catalyst, a complex compound is used that is obtained by reacting a palladium, cobalt or nickel compound,an anion of an acid with a pKa of less than 2, provided it is neither a hydrohalogenic acid nor carboxylic acid. and a bidentate ligand of the general formula R1R2-M-R-M-R3R4, in which M represents phosphorus, arsenic or antimony, R represents a divalent organic bridging group having at least two carbon atoms in which the bridge, none of these carbon atoms carrying sub- stituents that may cause steric hindrance and in which R1, R2, R3 and R4 are identical or different hydrocarbon groups.

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