Patent ID: 7994263
Filing Date: 2011-08-09
Classification: C09D,Y10T

Abstract:
1. A cationic electrodeposition paint composition, which comprises as the resin component, an amino group-containing modified epoxy resin (I) which is obtained by reacting: (A) a modified epoxy resin obtained through reaction of a diepoxy compound (a1) selected from the group consisting of the compounds (a-11) represented by a general formula (1): wherein m+n R and the compounds (a-12) represented by a general formula (2):  wherein y R with epoxy resin (a2) having an epoxy equivalent of 170-500 and bisphenols (a3); (B) xylene formaldehyde resin having phenolic hydroxyl groups; and (C) amino group-containing compound, wherein, based on the total solid mass of the modified epoxy resin (A), xylene formaldehyde resin (B) having phenolic hydroxyl groups, and amino group-containing compound (C), 50-90 mass % of the modified epoxy resin (A), 1-35 mass % of the xylene formaldehyde resin (B) having phenolic hydroxyl groups, and 5-25 mass % of the amino group-containing compound (C).