Patent ID: 7928152
Filing Date: 2011-04-19
Classification: C08G,C09D

Abstract:
1. A cationic electrodeposition paint which contains a base resin, said base resin being an amine-added epoxy resin, a curing agent, said curing agent being a blocked polyisocyanate compound, and at least one polyether compound which is selected from the group of compounds represented by the following formulae (1) and (4): in which: R R R R p is an integer of 0-4, m and n are integers of 1-5, independently of each other, the polyether compounds of the formula (1) being obtained through a reaction of a glycidyl ether compound represented by the following formula: in which R with an alcoholic compound represented by the following formula: in which R the polyether compounds of the formula (4) being obtained through a reaction of a diol selected from the group consisting of 1,3-butanediol, 2,3-butanediol, 1,2-butanediol, 3-methyl-1,2-butanediol, 1,2-pentanediol, 1,4-pentanediol, 2,4-pentanediol, 2,3-dimethyltrimethylene glycol, 2-methyl-1,3-propanediol, 2-butyl-2-ethyl-1,3-propanediol, 3-methyl-4,3-pentanediol, 3-methyl-4,5-pentanediol, 2,2,4-trimethyl-1,3-pentanediol, 1,5-hexanediol, 2,5-hexanediol and neopentyl glycol with alkylene oxides represented by the following formulae: in which R and the blend ratio of said polyether compound being in a range of 0.1-20 weight parts, as solid, per 100 parts of combined solid contents of the base resin and the curing agent, said paint comprising an emulsion which is prepared by making water-dispersible the base resin, the curing agent and the polyether compound with a neutralizing agent in an aqueous medium.