Curatives of epoxy resins from dicarboxylic acids, including (1) indane or (2) tert-butylisophtalic derived acids, reacted with polyetherdiamines

Abstract

Carboxylic acid-polyetherpolyamine reaction products which contain as the principle reaction component, an amidoamine having the formula: ##STR1## where R=polyether segment as previously defined. Z=dicarboxylic acid of structure given in Examples 2 and obtained by reacting a polyoxypropylene and/or polyoxyethylene diamine with an aromatic dicarboxylic acid in molar proportions such that at least about 1.0 to 1.2 mole equivalents of amine are provided in the reaction mixture of each mole equivalent of carboxylic acid present in the reaction mixture. The amidoamines exhibit improved properties which allow for a rapid curing system even under ambient conditions and useful applications include coatings, adhesives, encapsulations, laminates and composite fabrications.

Dependencies are inferred from the claim text.