CPC H01B 3/306 (2013.01) [B32B 7/025 (2019.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 37/24 (2013.01); H01B 1/026 (2013.01); H01B 3/445 (2013.01); B32B 2037/243 (2013.01); B32B 2250/03 (2013.01); B32B 2250/40 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2270/00 (2013.01); B32B 2307/202 (2013.01); B32B 2307/206 (2013.01); B32B 2307/7265 (2013.01); B32B 2457/04 (2013.01)] | 14 Claims |
1. A film comprising an aromatic polyimide base film, and a layer containing (i) a polymer having units based on tetrafluoroethylene and units based on a perfluoro(alkyl vinyl ether) and (ii) an aromatic polymer, formed on each side of the base film,
wherein in the layer, an amount of the aromatic polymer (ii) to a total amount of the polymer (i) and the aromatic polymer (ii) is 10 mass % or less.
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