Patent ID: 7744715

Claim:
A method for producing a fluororesin-laminated film comprising: co-extruding a fluororesin layer having a thickness of from 2 μm to 10 μm that comprises tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride terpolymer (THV) and a resin layer that can be peeled off from the fluororesin layer, and extrusion-laminating the co-extruded layers on at least one side of a drawn polyethylene terephthalate film with the co-extruded fluororesin layer facing the drawn polyethylene terephthalate film so that an adhesion strength between the fluororesin layer and the drawn polyethylene terephthalate film, as determined in accordance with a 180-degree peeling test specified in the Japanese Industrial Standards Z-0237 at a pulling rate of 5 mm/min, is 4 N/cm or larger.