| 摘要 |
PURPOSE:To improve the dimentional accuracy of the title film capacitor having heat-resisting property and chemical-resisting property by a method wherein the outermost layer of a protective layer consists of a biaxially oriented polyphenylene sulphide film, and a practically non-oriented polyphenylene sulphide film is used in the specific thickness against the whole thickness of the protective film. CONSTITUTION:An excellent capacitor can be obtained by conjointly using a PPS-BO film and a PPS-NO film as a protective layer. It is unnecessary to constitute the entire protective layer with a biaxially oriented polyphenylene sulphide film part and a non-oriented polyphenylene sulphide film, and if the thickness of the above- mentioned films is 20$ or below against the entire thickness of the protective layer, other sheet or film such as a polyester film, polyimide film and the like, or resin, bonding agent layers and the like are used with the biaxially oriented and practically non-oriented polyphenylene sulphide film. As the constitution of the protective layer, the layers of a PPS-BO film 1, a PPS-NO film, 2 a PPS-BO film 1, a PPS-NO film 1/PPS-BO film 1 and the like, which are laminated in the above-mentioned order from outside, or the material having other resin, sheet or film interposed between layers can be enumerated. |
