| 摘要 |
THIS INVENTION PROVIDES A MULTILAYER COATING FILM-FORMING METHOD COMPRISING APPLYING BASE COATING PAINT (A) ONTO A COATING OBJECT, SUCCESSIVELY APPLYING ONTO THE SO FORMED UNCURED COATED SURFACE WATER-BASED COLORING PAINT (B) AND CLEAR PAINT (C), AND THEN HEATING TO SIMULTANEOUSLY CURE THE THREE-LAYERED COATING FILM COMPOSED OF THE PAINTS (A), (B) AND (C), IN WHICH THE BASE COATING PAINT (A) CONTAINS CARBOXYL GROUP- AND HYDROXYL GROUP-CONTAINING RESIN; TERTIARY AMINO GROUP-CONTAINING RESIN WHICH IS OBTAINED BY COPOLYMERIZING TERTIARY AMINO GROUP-CONTAINING UNSATURATED MONOMER, POLYOXYALKYLENE GROUP-CONTAINING NONIONIC UNSATURATED MONOMER AND OTHER UNSATURATED MONOMER (B-3); AND CROSSLINKING AGENT REACTABLE WITH HYDROXYL GROUP. |
