Process for preparing aqueous paint composition

Details Process for preparing aqueous paint composition Process for preparing aqueous paint composition

C - Chemistry, Metallurgy

09

D

117/198, 400/791

C09D 17/00 (2006.01) C08G 59/50 (2006.01) C09D 5/02 (2006.01) C09D 7/14 (2006.01)

Patent

CA 1301988

K 691 A B S T R A C T PROCESS FOR PREPARING AQUEOUS PAINT COMPOSITION Process for preparing an aqueous paint composition by:- (a) mixing a pigment powder having a particle size less than 20 micrometres, a cross-linking agent and an epoxy resin to form a liquid, solvent-free paste, (b) reacting the resultant paste with a secondary amine, and optionally also a primary amine, to provide for at least one N-H function per epoxy group of the epoxy resin, at a temperature in the range 20 °C to 140 °C, and (c) neutralising the resulting suspension of particles coated with epoxy amine adduct and cross-linking agent.

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