| abstract |
(57) [Problem] To provide a cationic electrodeposition coating composition capable of satisfying both the rust prevention property of the edge portion and the appearance of a coating film. SOLUTION: A crosslinked resin particle obtained by emulsion polymerization of an α, β-ethylenically unsaturated monomer mixture using an acrylic resin having an ammonium group as an emulsifier is contained in an amount of 3 to 20% by weight of the coating resin solids. A cationic electrodeposition coating composition. Here, the α, β-ethylenically unsaturated monomer mixture contains 5 to 5 poly (meth) acrylates having two or more α, β-ethylenically unsaturated bonds in the molecule. 20% by weight may be contained. |