| 摘要 |
<p>PCT No. PCT/EP96/05692 Sec. 371 Date Jul. 21, 1998 Sec. 102(e) Date Jul. 21, 1998 PCT Filed Dec. 18, 1996 PCT Pub. No. WO97/23306 PCT Pub. Date Jul. 3, 1997A process is claimed for producing a multilayer coating on a substrate surface, in which (A) an aqueous coating composition comprising as film-forming agent an aqueous polymer dispersion is applied as basecoat composition to a substrate surface coated with a customary primer surfacer, (B) a suitable transparent topcoat composition is applied to the basecoat thus obtained, and (C) the basecoat is baked together with the topcoat, wherein the basecoat composition comprises an aqueous polymer dispersion comprising (i) an acrylate polymer based on from 30 to 60% by weight of C1-C8-alkyl (meth)acrylate monomers, from 30 to 60% by weight of vinyl-aromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid, and (ii) a thickener, which does not have an associative action, comprising an acrylate copolymer based on (C1-C6)-alkyl (meth)acrylate and (meth)acrylic acid.</p> |
