| 摘要 |
PROBLEM TO BE SOLVED: To provide an active energy ray-curable coating composition which is capable of suppressing cracking of a metal thin film even when a strong top coat layer capable of sufficiently protecting the metal thin film is formed on the metal thin film or a heat resistance test is performed, and to provide a composite coating film.SOLUTION: The active energy ray-curable coating composition for the undercoating of a metal thin film to be formed on a metal substrate contains a coating film-forming component containing 30 mass% or more of an urethane(meth)acrylate polymer having a dicyclopentanyl and/or dicyclopentenyl structure. |
