| 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. |
