COMPOSITIONS USEFUL FOR ELECTROCOATING METAL SUBSTRATES AND ELECTRODEPOSITION PROCESSES USING THE COATINGS

A curable, electrodepositable coating composition is provided, comprising: (1) a resin component containing an active hydrogen-containing, cationic salt group-containing resin comprising an acrylic, polyester, polyurethane and/or polyepoxide polymer; (2) an at least partially capped polyisocyanate c...

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Bibliographische Detailangaben
1. Verfasser:	POOLE, JAMES E
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A curable, electrodepositable coating composition is provided, comprising: (1) a resin component containing an active hydrogen-containing, cationic salt group-containing resin comprising an acrylic, polyester, polyurethane and/or polyepoxide polymer; (2) an at least partially capped polyisocyanate curing agent; and (3) an additive composition comprising 2-mercaptobenzothiazole dispersed in a polymeric component. Also provided are processes for coating a substrate using the above composition, and methods of preparing the composition. L'invention porte sur une composition de revêtement durcissable apte à l'électrodéposition, comprenant : (1) un composant résine contenant une résine contenant de l'hydrogène actif et contenant un groupe sel cationique, la résine comprenant un polymère acrylique, polyester, polyuréthane et/ou polyépoxyde; (2) un agent durcisseur polyisocyanate au moins partiellement coiffé; et (3) une composition d'additif comprenant du 2-mercaptobenzothiazole dispersé dans un composant polymère. L'invention porte également sur des procédés pour le revêtement d'un substrat utilisant la composition ci-dessus et sur des procédés de préparation de la composition.