| 摘要 |
PROBLEM TO BE SOLVED: To obtain an aqueous coating composition which is excellent in stability and color characteristics and is useful for the glossy coatings of automobiles, by compounding a coating film-forming polymer, a metallic pigment, an organic nitro compound, and an organic solvent. SOLUTION: This aqueous coating composition comprises (A) an aqueous or water-dispersible coating film-forming polymer (preferably a polyurethane resin), (B) a metallic resin based on small coated metal plates, (C) an organic nitro compound additionally functionalized with a carboxyl group, a carbonyl group and/or a hydroxyl group, and (D) an organic solvent (preferably an alkylene glycol monoether) capable of dissolving the component C, and other conventional components. The component B preferably contains small metal plates coated with a metal oxide, more preferably small aluminum plates coated with an iron oxide, titanium dioxide and/or a chromium oxide.
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