| 摘要 |
<p>The present invention provides an aqueous coating composition wherein the resulting coating film has good visual appearance and excellent flip-flop properties, and a method for formation of a multilayer coating film. The aqueous coating composition comprising: an aqueous resin dispersion which is obtained by solution-polymerizing a monomer mixed solution A having an acid value of 30 to 150 and a hydroxyl group value of 10 to 100 in an organic solvent, thereby to synthesize a copolymer solution, converting the copolymer solution into an aqueous solution, removing the organic solvent under reduced pressure to obtain an aqueous solution resin for emulsion polymerization, and then emulsion-polymerizing a monomer mixed solution B having an acid value of 20 as an upper limit and a hydroxyl group value of 100 as an upper limit using the aqueous solution resin for emulsion polymerization as a protective colloid, thereby to synthesize a core resin in the protective colloid; and a glitter material. The aqueous solution resin for emulsion polymerization may be obtained by the aqueous solution polymerization of the monomer mixed solution A in water.</p> |
