To achieve a complete reaction, it is generally necessary periodically to increase the temperature to about 50??? to 120??? C. Before addition of the amine, the resin containing 1,2-epoxy groups is dissolved in organic solvents, such as xylene, methyl isobutyl ketone, which have to be subsequently distilled off before dilution, or in such solvents as ethylene glycol monoethyl ether, propylene glyc