| 摘要 |
<p>The invention relates to an aqueous coating substance that contains A) at least one water-soluble or water-dispersible polyester that is produced from a1) a mixture that contains a11) 40 to 80 mole percent of at least one aliphatic or cycloaliphatic polycarboxylic acid or at least one esterifiable derivative of an aliphatic or cycloaliphatic polycarboxylic acid or a mixture of at least two of said starting products, a12) 20 to 60 mole percent of at least one aromatic polycarboxylic acid, at least one esterifiable derivative of an aromatic polycarboxylic acid or a mixture of at least two of these starting products; a2) at least 60 mole percent of at least one aliphatic or cycloaliphatic polyols that contains at least one structural element -C(R1R)-CH2OH in the molecule, wherein the residues R?1 and R2¿ represent aliphatic, cycloaliphatic or aromatic carbohydrate groups with 1 to 20 carbon atoms or methylol groups, or a mixture of at least two of these starting products; B) at least one water-soluble or water-dispersible polyurethane acrylate, C) at least one aminoplast resin that is water-soluble or water-dispersible as such or in the presence of the components (A) and (B) and D) at least one color- or effect- producing pigment and/or filler and optionally E) at least one polyisocyanate. The invention also relates to a method for producing said coating substance and to its use as plain coating lacquer and aqueous base varnish, especially as plain coating lacquers for coating the bodies of utility vehicles.</p> |
