Patent ID: 8501665

Claim:
A method for manufacturing a film catalyst, comprising forming a catalyst layer on one side or each side of a base material to produce a film catalyst and then bending the film catalyst, wherein the bending step is conducted by bending the film catalyst with a bending tool composed of two gears that are oppositely arranged as meshing each other while a protective material having a compressibility of 40 to 95% is inserted between the catalyst layer of the film catalyst and the two gears; wherein a ratio of the total thickness (t 2 ) of the protective material to the thickness (t 1 ) of the film catalyst, t 2 /t 1 , is 4 to 20, and a distance (T) between the two gears and t 1 and t 2 satisfy a relationship t 1 <T<t 1 +t 2 , wherein T is a distance between the two gears wherein the closest distance of the two gears in the state of a tooth of one gear meeting of the other gear is set to the basing point 0.