| 摘要 |
PCT No. PCT/EP96/05168 Sec. 371 Date Jul. 6, 1998 Sec. 102(e) Date Jul. 6, 1998 PCT Filed Nov. 22, 1996 PCT Pub. No. WO97/20874 PCT Pub. Date Jun. 12, 1997To obtain water-based paint compositions which have outstanding storage stability and can also form paint films with outstanding appearance and water resistance. Water-based paint composition containing a hardener at 50-10 parts by weight to 50-90 parts by weight (solids) of an aqueous dispersion obtained by polymerizing an aqueous dispersion of a polyurethane resin of a number-average molecular weight of 1000-50,000, an acid value from carboxyl groups of </=50 mg KOH/g, a sulfonate group content of 0.05-0.6 mol/1000 g, an allyl content of 0.1-1.1 mol/molecule and an acetate tolerance of >/=5 in the aqueous dispersion with ethylenic unsaturated monomers in a proportion as a weight ratio of polyurethane resin/ethylenic unsaturated monomer of 5/95-60/40.
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