Catalyst compositions and a process suitable for the preparation of polymers of carbon monoxide and olefinically unsaturated compounds

Abstract From the Canadian patent

Catalyst compositions containing a Group VIII metal and a, phosphorus bidentate ligand of the general formula (R2)2P-R-P(R2)2 in which the groups R are independently ethyl and/or l-propyl groups, and R represents a divalent organic bridging group connecting the two phosphorus atoms and containing in the bridge 2-4 atoms, of which at least 2 are carbon atoms and a process for, the preparation of polymers wherein linear alternating polymers of carbon monoxide and one or more olefinically unsaturated compounds are prepared by contacting the monomers with said catalyst composition. VM4/T1761FF