Patent ID: 7625477

Claim:
An electrodeposition paint comprising a pigment-dispersed paste mixed with an emulsion for electrodeposition paint, wherein the pigment-dispersed paste comprises (a) particles of bismuth hydroxide, having an average particle diameter of 50-300 nm; (b) at least one paint additive selected from coloring pigment, extender, other rust-preventive pigment and organotin compound; (c) a pigment-dispersing resin; and (d) a dispersing medium, and wherein the emulsion comprises (i) 50-95 mass % of a base resin comprising a xylene-formaldehyde resin-modified, amino-containing epoxy resin formed by reacting an epoxy resin having an epoxy equivalent of 180-3,000 with xylene-formaldehyde resin and amino-containing compound; and (ii) 5-50 mass % of a crosslinking agent, based on the total solid content of the two components (i) and (ii), and 0.01-10 parts by weight of the particles of bismuth hydroxide are contained in the paint per 100 parts by weight of the combined solid content of the base resin and crosslinking agent.