Undercoat agent for substrate with copper thin film, substrate with copper thin film and method for producing the same, and conductive film and electrode film

摘要

PROBLEM TO BE SOLVED: To provide a composition which is an organic polymer-based undercoat agent used for manufacturing a substrate with a copper thin film and capable of forming an undercoat layer excellent in not only initial adhesiveness between a plastic substrate and the copper thin film, but also adhesiveness after an alkali treatment and adhesiveness after an acid treatment.SOLUTION: There is provided an undercoat agent for substrate with copper thin film containing (A) acrylic copolymer by reacting hydroxyl group-containing (meth)acrylate (a1) and alkyl (meth)acrylate (a2), (B) a polyisocyanate-based curing agent having at least three isocyanate groups and (C) a silane coupling agent.