Patent ID: 10752729

Abstract:
A coating film formed by curing of an epoxy resin composition containing at least an epoxy resin, an epoxy resin curing agent and a solvent, wherein the coating film contains the solvent in a ratio of 1% by mass or more and 20% by mass or less, and the epoxy resin curing agent is a reaction product of the following (A) and (B). (A) At least one selected from the group consisting of metaxylylenediamine and paraxylylenediamine. (B) At least one selected from the group consisting of an unsaturated carboxylic acid represented by the following formula (1) and a derivative thereof: wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aralkyl group having 1 to 8 carbon atoms, or an aryl group.