PROCESS FOR MULTI-LAYER COATING

A process for multilayer coating of substrates includes applying a base coat layer of a water-based color- and/or special effect-imparting base coat composition onto a substrate, applying a clear coat layer of a transparent clear coat composition onto the base coat layer, and curing the clear coat l...

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Bibliographische Detailangaben
Hauptverfasser:	WIETOR JEAN-LUC, FLOSBACH CARMEN, BRUYLANTS PAUL P
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 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 PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A process for multilayer coating of substrates includes applying a base coat layer of a water-based color- and/or special effect-imparting base coat composition onto a substrate, applying a clear coat layer of a transparent clear coat composition onto the base coat layer, and curing the clear coat layer. The base coat composition contains a water-dilutable polyurethane hybrid binder, obtained by polymerization of a polyurethane macromonomer, containing a lateral and/or terminal vinyl group, in the presence of an unsaturated monomer copolymerizable with the polyurethane macromonomer, a curing agent, and a pigment. The polyurethane macromonomer is based on a polyhydroxyl compound. The polyhydroxyl compound comprises at least about 50% by weight of at least one polycarbonate polyol, which is liquid at 20° C., the % by weight based on the total amount of the polyhydroxyl compound.