Resins with reduced epichlorohydrin hydrolysates.

摘要

Polyamidoamine-epichlorohydrin resin solutions with less than 1500 ppm of epichlorohydrin hydrolyzates after acid stabilization are produced by contacting the resin solution with either (a) dibasic phosphate salts having the general formula M2HPO4 where M represents Na, K, or NH4, or (b) a nucleophilic alkanolamine at a temperature of less than about 50 DEG C for a time sufficient to produce a product solution having, after stabilization with acid, less than 1500 ppm of epichlorohydrin hydrolyzates.