Hydrolyzing epoxy resins in absence of solvent and in...

Details Hydrolyzing epoxy resins in absence of solvent and in... Hydrolyzing epoxy resins in absence of solvent and in...

C - Chemistry, Metallurgy

08

G

402/267

C08G 59/14 (2006.01)

Patent

CA 1215193

ABSTRACT OF THE DISCLOSURE This invention is directed to a process for hydrolyzing an epoxy resin by reacting said epoxy resin with water in the presence of a catalyst. This inven- tion is characterized by conducting the reaction in the absence of a polyhydric phenol and substantial quanti- ties of an organic solvent and in the presence of a catalytic quantity of a catalyst comprising (1) at least one dicarboxylic acid and (2) at least one phos- phonium compound wherein the molar ratio of (1) to (2) is from 1:1 to 20:1. Hydrolyzed epoxy resins produced by the process of this invention are useful in coating compositions.

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