A method for producing a proton conductive membrane containing polyazole

A process for preparing a proton-conducting, polyazole containing membrane, in which one A) presses a composition at a temperature ranging from 25 ° C to 300 ° C through an opening that contains polyphosphoric acid and at least one polyazole and which has a solution viscosity ranging from 10 Pas to 1000 Pas, measured to DIN 53018 at the temperature at the opening during the manufacture of the membrane, and B) the composition then solidifies.