METHOD TO PREVENT DEACTIVATION OF METAL CATALYSTS IN CATALYTIC POLYMERISATION PROCESSES

摘要

The present invention relates to a method to prevent deactivation of the metal catalyst in a catalytic polymerisation process of polymeric binders whereby pyrithione biocides are present which method comprises the addition of a Zn Cu or Na salt selected from Zn Cu or Na salts of fatty acids such as e.g. Zn Cu or Na octoate Zn Cu or Na acrylate Zn Cu or Na neodecanoate or Zn Cu or Na salts of beta diketones such as e.g. Zn Cu or Na acetylacetonate.