Process for preparing aqueous paint composition

A process is disclosed for preparing an aqueous paint composition including the steps of (a) mixing a pigment powder having a particle size less than about 20 micrometers, a cross-linking agent and an epoxy resin to form a liquid, solvent-free paste; (b) reacting the resultant paste with a secondary...

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Bibliographic Details
Main Authors DIJKSTRA; TETTE J, VAN IPEREN; ROELAND, SCHOLTEN; HENRICUS P. H
Format Patent
LanguageEnglish
Published 12.06.1990
Subjects
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
COMPOSITIONS BASED THEREON
CORRECTING FLUIDS
DYES
FILLING PASTES
INKS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:A process is disclosed for preparing an aqueous paint composition including the steps of (a) mixing a pigment powder having a particle size less than about 20 micrometers, a cross-linking agent and an epoxy resin to form a liquid, solvent-free paste; (b) reacting the resultant paste with a secondary amine to provide at least one N-H function per epoxy group of the epoxy resin; and (c) neutralizing the resulting suspension of particles coated with an epoxy-amine adduct and a cross-linking agent. Also provided is a coating process employing the invention aqueous paint composition containing a transesterification-promoting metal compound.
Bibliography:Application Number: US19880245958