METHOD TO PREVENT DEACTIVATION OF METAL CATALYSTS IN CATALYTIC POLYMERISATION PROCESSES

• Main Author: DE MEYER, KURT MARK ANTHONY
• Format: Patent
• Language: English; French
• Published: 14.07.2020
• Subjects: ADHESIVES; AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; POLISHES; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRAPPING; USE OF MATERIALS THEREFOR; WOODSTAINS

he 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. La présente invention concerne un procédé de prévention contre la désactivation du catalyseur de métal dans un processus de polymérisation catalytique des liants polymériques ainsi les biocides de pyrithione étant présents, ledit procédé comprend la totalisation de sel de Zn, Cu ou Na choisi à partir de sels de Zn, Cu ou Na des acides gras tels que l'octoate de Zn, Cu ou Na, l'acrylate de Zn, Cu ou Na, le néodécanoate de Zn, Cu ou Na, ou les sels de Zn, Cu ou Na de béta dicétones tels que l'acétylacétonate de Zn, Cu ou Na.