TRANSFER FOIL FILM AND SOLID POLYMER ELECTROLYTE MEMBRANE WITH MASK OBTAINED BY USING THE SAME, SOLID POLYMER ELECTROLYTE MEMBRANE WITH TRANSFER FOIL FILM, CATALYST TRANSFER FILM WITH MASK, CATALYST LAYER-ELECTROLYTE MEMBRANE LAMINATE, AND METHOD FOR MANUFACTURING SOLID POLYMER ELECTROLYTE FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a transfer foil film capable of forming a mask for forming a catalyst layer in positions opposing both sides of an electrolyte membrane without damaging the electrolyte membrane.SOLUTION: A transfer foil film is used when a catalyst layer for a solid polymer electrolyte fuel cell is formed as a pattern on a solid polymer electrolyte membrane, where the transfer foil film is composed of a mask forming layer comprising a release layer and a base material film. The mask forming layer is formed as the pattern on the base material film.