PROCESS FOR PREPARING AQUEOUS BINDER COMPOSITIONS

摘要

Process for preparing an aqueous binder composition which comprises
(a) dispersing pigment powder having a particle size less than 20 micrometres in a liquid, solvent-free epoxy resin,
(b) dispersing the resultant paste in water,
(c) reacting the resultant dispersion with a secondary amine, the amount of amine or amines being sufficient to provide at least one N-H function per epoxy group of the epoxy resin, and
(d) neutralising the resulting suspension of epoxy-amine adduct coated particles.