Resins with reduced epichlorohydrin hydrolyzates

Details Resins with reduced epichlorohydrin hydrolyzates Resins with reduced epichlorohydrin hydrolyzates

C - Chemistry, Metallurgy

08

G

C08G 69/42 (2006.01) C08G 69/48 (2006.01)

Patent

CA 2078425

RESINS WITH REDUCED EPICHLOROHYDRIN HYDROLYZATES ABSTRACT OF THE DISCLOSURE Polyamidoamine-epichlorohydrin resin solutions with less than 1500 ppm of epichlorohydrin hydrolyzates after acid stabilization are produced by contacing 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° C for a time sufficient to produce a product solution having, after stabilization with acid, less than 1500 ppm of epichlorohydrin hydrolyzates. Atty. Dkt. No. 36309 14

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