Coating compositions based on blocked polyisocyanates and sterically hindered aromatic polyamines

摘要

The present invention is directed to a coating composition which possesses improved storage stability and contains a) a blocked polyisocyanate prepared by blocking the isocyanate groups of an organic polyisocyanate with a blocking agent based on a di-C1-C12-alkyl and/or -alkoxyalkyl malonate or an acetoacetic acid C1-C12-alkyl and/or -alkoxyalkyl ester b) an aromatic polyamine, and c) is free from compounds having monofunctional reactivity towards isocyanate groups.