Process for the manufacture of a polymer electrolyte membrane coated with a catalyst

The method involves using ink containing catalyzer and maintaining a connection of the polymer electrolyte membrane with at least one protective foil during all stages of the process. The process is continuously operated and both the polymer electrolyte membrane and also the at least one protective foil are provided in band form. A second protective foil is applied to the front after coating the front with a protective foil on the rear. Independent claims are also included for: (a) a three-layer polymer electrolyte membrane coated with catalyzer on the front and back with a protective film; and (b) an arrangement for manufacturing a catalyzer-coated polymer electrolyte membrane.