FILM FOR FILM CAPACITOR, METAL LAYER LAMINATED FILM FOR FILM CAPACITOR, AND FILM CAPACITOR

摘要

The present invention addresses the problem of providing a film for a film capacitor that has high heat resistance, self-healing properties, and excellent productivity, wherein the film has a resin layer A having a melting point of 180 °C or higher and/or a glass transition temperature of 130 °C or higher and a layer B thinner than the resin layer A in at least the outermost layer of the film, the oxygen content of the layer B is 1.0% by mass or more, when a dynamic friction coefficient is measured on the same surface of two outermost layer surfaces, the surface having a higher dynamic friction coefficient is defined as an a-plane and the surface having a smaller dynamic friction coefficient is defined as a b-plane, and when a dynamic friction coefficient between the a-planes is defined as μdaa, and a dynamic friction coefficient between the a-plane and the b-plane is defined as μdab, μdaa>μdab and μdab≤1.2 are satisfied.