| abstract |
The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I whereinRrepresents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer,Xrepresents OR' or NHR' andR'represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I andnhas a value of 2 to 6.The present invention also relates to one-component, thermoset coating compositions containing the compounds of formula I and a cross-linking component that is reactive with these compounds. Finally, the present invention relates coatings, sealants and adhesives prepared from these thermoset compositions. |