| 摘要 |
PCT No. PCT/EP89/00412 Sec. 371 Date Dec. 10, 1990 Sec. 102(e) Date Dec. 10, 1990 PCT Filed Apr. 18, 1989 PCT Pub. No. WO89/10387 PCT Pub. Date Nov. 2, 1989.The invention relates to water-thinnable baking paints, the use thereof as filler material and intermediate stone chip resistant coat as well as a process for painting motor vehicle bodies. The water-thinnable baking paints comprise as binders a combination of (I) 20 to 70% by weight of a water-thinnable polyurethane resin with an acid value of 15 to 35, (II) 20 to 70% by weight of an epoxy resin-modified water-thinnable polyester which can be prepared by reacting a polyester (A) with a molecular weight (number average) below 2000, an acid value of 35-240 and a hydroxyl value of 56-320, with 0.3 to 1.5 equivalents per polyester molecule of an epoxy resin (B) having an epoxide equivalent weight of 170 to 1000, based on a bisphenol, and/or with a derivative of this epoxy resin (C) containing at least one epoxide group per molecule under reaction conditions where essentially only carboxyl groups react with epoxide groups, and (III) 0 to 20% by weight of a water-thinnable aminoplast resin, the sum of the components (I) to (III) being always 100% by weight. |
