N-Methacryloylcarbamate ( N-MAC), which is an original monomer of Nippon Paint, is a heterofunctional monomer which has a polymerizable double bond and an acylcarbamate group in the same molecule. It has four characteristic properties, which have been developed for use in coatings. These are: a molecular weight that can be controlled easily by the amount of radical initiator used irrespective of the kind of acylcarbamate; the reactivity of the acylcarbamate group in the polymer is lower with an alcohol than in a monomer. However, the reactivity of the acylcarbamate group in the polymer with alcohol is much higher than that of carbamate group with alcohol; a curing temperature dependent on the kind of acylcarbamate group; and an acylcarbamate group that can react with a low nucleophilic active hydrogen such as that of a secondary alcohol. An electrodeposition paint has been developed from these properties since the activated acylcarbamate group in the N-MAC polymer makes it possible to design a low temperature crosslinking system, the flexibility in design of the main resin with respect to the active hydrogen makes it possible to improve the storage stability because of high reactivities of N-MAC polymer with active hydrogen compounds, and a core/shell structure makes it possible to make low temperature crosslinking compatible with good storage stability.