Process for coating

Details Process for coating Process for coating

C - Chemistry, Metallurgy

08

J

C08J 7/04 (2006.01) B05D 7/26 (2006.01) C08K 5/357 (2006.01) C09D 5/00 (2006.01) C09D 7/12 (2006.01)

Patent

CA 2453832

A process for the preparation of a coating layer comprising the steps:(a) applying a coating layer to a substrate from a coating agent of which the resin solids comprise a binder system curable by free-radical polymerization of olefinic double bonds, and containing 0.1 to 4 wt- %, based on resin solids, of a morpholin-2-one derivative sterically hindered by 3,3,5,5- polysubstitution as a light stabilizer; and(b) thermal curing of the applied coating layer.

L'invention concerne un procédé destiné à la préparation d'une couche de revêtement, consistant : (a) à appliquer une couche de revêtement sur un substrat à partir d'un agent de revêtement dont la résine solide est formée par un système de liaison durcissable par polymérisation radicalaire des doubles liaisons oléfiniques, l'agent de revêtement renfermant 0,1 à 4 % en masse, sur la base de la résine solide, d'un dérivé morpholin-2-one stériquement encombré par polysubstitution en 3,3,5,5 utilisé comme photostabilisant ; et (b) à traiter thermiquement la couche de revêtement appliquée.

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