| 摘要 |
A process for coating substrates comprising applying to the substrates an aqueous dispersion comprising an acid-solubilized reaction product of: (A) an amino group-containing polymer (especially a polyepoxide amine adduct), and (B) a thermally unstable acid of the structure; <IMAGE> wherein at least one member of the group X, Y and Z is selected from the group consisting of thiol, cyano, hydroxyl groups, and an unsaturated hydrocarbyl group in conjugation with the carbonyl group, and each of the other is a hydrogen or a hydrocarbyl group; provided that when either X, Y or Z is hydroxyl, the remaining groups are hydrogen. The coating compositions yield non-corrosion vapours upon baking at cure temperatures. |
