| abstract |
(57) [Problem] By blending in an electrodeposition paint, flexibility can be imparted to the electrodeposition coating film while maintaining adhesion, and the amount of solvent used in the electrodeposition paint can be reduced. , A novel aminopolyether-modified epoxy. An aminopolyether represented by the following formula and a molecular weight of 1,000 to 7000 and a molecular weight of 500 to 3500 A reactant with a polyglycidyl ether having an epoxy equivalent of: wherein the reaction is based on the epoxy group of the polyglycidyl ether, Containing an aminopolyether-modified epoxy compound obtained by setting a primary amino group at an equivalent ratio in the range of 0.52 to 1.0, and a flexible resin comprising the aminopolyether-modified epoxy Cationic electrodeposition coating composition. Embedded image (Where m is an integer of 5 or more, R is hydrogen, a methyl group, or an ethyl group, and n is 2 or 3.) |