METHOD FOR FORMING A MULTILAYER PAINT FILM

An object of the present invention is to provide a method of forming a multilayer coating film having excellent smoothness, distinctness of image, water resistance and chipping resistance. The present invention provides a method of forming a multilayer coating film by successively applying an aqueou...

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Bibliographische Detailangaben
1. Verfasser:	ADACHI TAKATO
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 LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 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 INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	An object of the present invention is to provide a method of forming a multilayer coating film having excellent smoothness, distinctness of image, water resistance and chipping resistance. The present invention provides a method of forming a multilayer coating film by successively applying an aqueous intermediate coating composition, an aqueous base coating composition and a clear coating composition to a substrate; and simultaneously heat-curing the resulting intermediate coating, base coating, and clear coating, wherein the aqueous intermediate coating composition comprises as a resin component a hydroxy- and carboxy-containing polyester resin (A) having a hydroxy value in the range of 60 to 200 mgKOH/g, an acid value in the range of 10 to 60 mgKOH/g, and a number average molecular weight in the range of 700 to 5,000; a melamine resin (B) having a weight average molecular weight in the range of 500 to 4,000; and a polycarbodiimide compound (C).