Hydrophilic resin containing oxazolidone rings and coating...

Details Hydrophilic resin containing oxazolidone rings and coating... Hydrophilic resin containing oxazolidone rings and coating...

C - Chemistry, Metallurgy

08

G

C08G 59/14 (2006.01) C08G 59/02 (2006.01) C08G 59/04 (2006.01) C08G 59/12 (2006.01) C08G 59/16 (2006.01) C08G 59/26 (2006.01) C08G 59/42 (2006.01) C08G 59/50 (2006.01) C08G 59/62 (2006.01) C09D 5/44 (2006.01) C09D 163/00 (2006.01)

Patent

CA 2084455

Oxazolidone ring-containing epoxy resins (a) produced by the reaction between a diglycidyl ether or ester and an organic diisocyanate are reacted with (b) a first active hydrogen compound such as a monoalcohol or a diol, or a mono- or dicarboxylic acid in less than a stoichiometric amount in terms of the active hydrogen atom relative to the epoxy group, and then with (c) a second active hydrogen compound such as an amine or a sulfide-acid mixtures or a polycarboxylic acid in a stoichiometric amount relative to the remaining epoxy group. The resulting hydrophilic modified resin has an oxazolidone ring-containing backbone terminated with an ionizable group. Water-borne paints are formulated from the hydrophilic modified resin by dispersing in an aqueous medium containing a cross-linker and a neutralizing agent.

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