Aqueous coating composition and preparation thereof

Details Aqueous coating composition and preparation thereof Aqueous coating composition and preparation thereof

C - Chemistry, Metallurgy

09

D

400/4004, 400/50

C09D 5/02 (2006.01) C08G 59/14 (2006.01) C08G 59/42 (2006.01) C08L 63/00 (2006.01) C09D 163/00 (2006.01)

Patent

CA 1258331

Aqueous coating composition comprising water insoluble resinous powder, aqueous resin, pigment and other optional addi- tives including hardener, characterized by that said water insol- uble resinous powder is composed of polymer obtained by reacting a mixture of epoxy resin and a resin having epoxy reactive func- tional group, or a resin having both epoxy group and epoxy reac- tive functional group, with an amine in an amount being suffi- cient enough to cause ring-opening of 10 to 50% of the total epoxy groups, or composed of carboxyl bearing resin admixed and reacted with high boiling basic compound. These compositions are excellent in storage stability, application characteristic and film performance.

456737

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