| 摘要 |
PCT No. PCT/EP95/02454 Sec. 371 Date Feb. 6, 1997 Sec. 102(e) Date Feb. 6, 1997 PCT Filed Jun. 23, 1995 PCT Pub. No. WO96/00757 PCT Pub. Date Jan. 11, 1996To form multi-layer paint films which have a good finished appearance on objects which are to be painted, using an aqueous base coat composition. An aqueous base coat composition which contains aqueous polyurethane resin and rheology control agent, the electrical conductivity measured in an aqueous solution of 3% by weight concentration of which is 700-900 mS/cm, is painted and then the paint film is formed, a transparent top coat is painted on the base coat paint film obtained in this way, and the base coat and the top coat are baked at the same time.
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