Method of incorporating polyamine into a cationic resin

Details Method of incorporating polyamine into a cationic resin Method of incorporating polyamine into a cationic resin

C - Chemistry, Metallurgy

09

D

C09D 5/44 (2006.01) C25D 13/06 (2006.01)

Patent

CA 2088259

2088259 9202588 PCTABS00010 Disclosed herein is a method of incorporating amine functionality onto a polyepoxy resin to be ued for cathodic electrocoat. This method has the following steps: a) reacting an epoxy resin with an amount of secondary amine so that unreacted epoxy functional groups remain; and b) further reacting the reaction product of a) with a polyamine so that there is a minimum of one equivalent of epoxy for every mole of polyamine. This method results in an electrocoat bath with the desired high pH and a stable dispersion.

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