WATER-BASED VINYL-MODIFIED EPOXY RESIN, METHOD FOR PRODUCING THE SAME AND WATER-BASED COATING AGENT

摘要

PROBLEM TO BE SOLVED: To provide a water-based vinyl-modified epoxy resin without lowering of molecular weight during long-term storage and reduction in film performance accordingly, and a water-based coating agent made of the water-based vinyl-modified epoxy resin. SOLUTION: This water-based vinyl-modified epoxy resin is formed by neutralizing with a basic compound (d) a grafted modified epoxy resin (C) obtained by graft-polymerizing a vinyl monomeric component (B) containing a carboxyl group-containing vinyl monomer (c) to a modified epoxy resin (A) obtained by reacting an epoxy resin (a) and amines (b), and by dispersing or dissolving it into water. COPYRIGHT: (C)2009,JPO&INPIT