초록 ▼

The invention provides an aqueous coating composition curable at ambient temperature comprising a polyacetoacetate; a polyamino amide having an amine number of 60-1000; and either a nitroalkane, a formic acid ester, or an organic compound occurring in at least 2 tautomeric forms, and in one of the t

The invention provides an aqueous coating composition curable at ambient temperature comprising a polyacetoacetate; a polyamino amide having an amine number of 60-1000; and either a nitroalkane, a formic acid ester, or an organic compound occurring in at least 2 tautomeric forms, and in one of the tautomeric forms a labile hydrogen atoms is linked to a carbon atom. A process of coating a substrate with such composition is also provided.

대표청구항 ▼

A water-dispersible aqueous coating composition based on a polyacetoacetate-comprising compound, said coating composition comprising: (a) an organic compound having at least 2 acetoacetate groups, wherein said organic compound is comprised of the reaction product of a polyol having two or more hydro

A water-dispersible aqueous coating composition based on a polyacetoacetate-comprising compound, said coating composition comprising: (a) an organic compound having at least 2 acetoacetate groups, wherein said organic compound is comprised of the reaction product of a polyol having two or more hydroxyl groups with a reactant selected from the group consisting of diketene and alkyl acetoacetate; (b) a curing agent comprising a polyamino amide having an amine number of 60-1,000 built up from a polyamine having 2-6 primary amino groups and 2-20 carbon atoms and a reactant selected from the group consisting of monocarboxylic acid, dicarboxylic acid and combinations thereof, wherein the carboxylic acid comprises from 2 to 40 carbon atoms; and (c) a dispersing agent selected from the group consisting of a nitroalkane having 1-6 carbon atoms; an organic compound occurring in at least 2 tautomeric forms, and in one of the tautomeric forms a labile hydrogen atom is linked to a carbon atom and which compound contains at least one carboxyl group or sulphonyl group; a formic acid ester having a solubility of at least 0.2 g in 100 g of water having a temperature of 20°C., with the exception of ter. butyl formiate; and combinations thereof.