Condensation products of dialdehydes and nitrogenous compounds
Resins useful as surface coatings are prepared by reacting dialdehydes having at least 5 carbon atoms with a dihydrazide, e.g. sebacic or adipic dihydrazide, a diamide of a dicarboxylic acid or urea. The condensation is preferably effected in the absence of a catalyst. A solvent, e.g. an alcohol or...
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