COATING AGENT AND LAMINATE

摘要

The present invention provides a coating agent comprising: (D) an aqueous resin composition produced by dispersing both (A) a vinyl ester resin and (B) a urethane resin having an aromatic ring in (C) an aqueous medium; and (E) a carbodiimide-type cross-linking agent. In the coating agent, the vinyl ester resin (A) is produced by reacting (a1) at least one epoxy resin selected from the group consisting of a novolac-type epoxy resin and a bisphenol-type epoxy resin with (a2) a compound having an acid group and a polymerizable unsaturated group, and the urethane resin (B) is produced by reacting (b1) a polyol comprising (b1-1) a polyol having an aromatic ring and (b1-2) a polyol having a hydrophilic group with (b2) a polyisocyanate. The coating agent according to the present invention enables the formation of a primer layer which can improve the adhesion between a base material and a cured coating film made from an active energy ray-curable composition and which has excellent chemical resistance and wet heat resistance.