Patent ID: 6649711
Filing Date: 2003-11-18
Classification: C08F,Y10S

Abstract:
A polymerisation process for the preparation of a polymer from the corresponding monomer of at least one of alkyl(alk)acrylic acid and esters thereof, functionalised alky(alk)acrylic acid and esters thereof, vinyl acetate or mixture thereof, which process comprises reacting said corresponding monomer in the presence catalyst system comprisinga) a metal complex of general formula (I) â€ƒwhere A is nickel, iron or cobalt; L1, L2, L3 and L4 are ligands and b) a Lewis acid of general formula (II) â€ƒwherein at least one of W, Y or Z is a C1-10-alkyl group capable of forming a co-ordination bond with A and at least one of the others of W, Y and Z are bulky groups; and D is aluminium, mangesium, zinc or boron.