WATER-BASED HEAT-CURABLE COATING COMPOSITION

PROBLEM TO BE SOLVED: To obtain a coating composition which is excellent in curability (particularly low-temperature curability) of coating films and can form coating films excellent in chipping resistance, adhesive properties, and the like, and to provide a method for forming a double-layered coati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KASARI AKIRA, TOMIZAKI YASUHIRO
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 CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS 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 TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a coating composition which is excellent in curability (particularly low-temperature curability) of coating films and can form coating films excellent in chipping resistance, adhesive properties, and the like, and to provide a method for forming a double-layered coating film. SOLUTION: There are provided a water-based heat-curable coating composition comprising a hydroxylated resin, a crosslinking agent and a phosphatic resin, wherein the phosphatic resin is a polymer formed from a monomer mixture comprising 20-30 wt.% of a phosphatic monomer, 20-30 wt.% of a hydroxylated monomer and 40-60 wt.% of methyl methacrylate, as constituent components, and a method for forming a double-layered coating film comprising coating an object with the water-based heat-curable coating composition and then with an organic-solvent-type clear coating material, and heating the resulting object to cure both the coating films at the same time.