Aqueous dispersion type thermosetting coating composition

Claim 1

An aqueous dispersion type thermosetting coating composition comprising (A) 100 parts by weight of a thermosetting resin powder having an average particle size of 5 to 50μ comprising (i) the thermosetting resin having an acid value of 5 to 30, (ii) a crosslinking agent, (iii) 1 to 8% by weight based on the thermosetting resin of at least one reactive flow adjusting agent selected from the group consisting of (I) compounds having an average molecular weight of 1,000 to 2,500 and represented by the following general formula: HO--(CH.sub.2).sub.n O].sub.m H wherein n is an integer of from 2 to 40 and m is an integer of from 2 to 55, and (II) r[(o--ch.sub.2 --ch.sub.2 --ch.sub.2 --ch.sub.2 --ch.sub.2).sub.x OH].sub.y wherein x is an integer of from 2 to 10, y is an integer of from 2 to 4, and R stands for an aliphatic polyhydric alcohol residue, cyclic aliphatic polyhydric alcohol residue or aromatic polyhydric alcohol residue having 2 to 16 carbon atoms, and (iv) a pigment, (B) 60 to 200 parts by weight based on the thermosetting resin (A) of water, (C) 0.1 to 0.5 parts by weight based on the thermosetting resin (A) of a carboxyl group-containing organic polymeric thickener having an acid value of 200 to 500, and (D) at least one member selected from the group consisting of organic amines having a boiling point higher than 100° C. and alkali metal hydroxide, the pH of the composition being in the range of from 7.5 to 9.0.