Patent ID: 6852662
Filing Date: 2005-02-08
Classification: B01J,C08G

Abstract:
1. A process for the preparation of linear, alternating copolymers of carbon monoxide and a-olefinically unsaturated compounds, wherein the copolymerization is carried out in an aqueous medium in the presence of a catalyst system containing, as essential components a) a metal complex of the formula (I) where G is —(CR R where q is an integer from 0 to 20 and the further substituents in (II) have the same meanings as in (I), A′ and B′ are each —(CR R R R r is 1, 2, 3 or 4 r′ is 1 or 2, s and t are each 0, 1 or 2, where 1≦s+t≦3 Z is a nonmetallic element from group VA of the Periodic Table of Elements, M is a metal selected from the group VIIIB, IB or IIB of the Periodic Table of Elements, E R L X are formally monovalent or polyvalent anions, p is 0, 1, 2, 3 or 4, m and n are each 0, 1, 2, 3 or 4, and p=m×n, and optionally, one or more Lewis or protic acids or a mixture of Lewis and protic acids.