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AssigneeShin-Etsu Polymer Co., Ltd.
InventorsMichimasa Ote, Takashi Gonda, Junya Ishida, Kenro Takizawa, Kazuhiro Suzuki, Yuzo Morioka
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When extrusion of a molten resin by means of an extruder is started, a simple polyetherimide resin is melt extruded from a lip portion 7a of a T-die 7, and a film of the simple polyetherimide resin is molded. The molding material is then switched to a resin composition including the polyetherimide resin and a fluorine resin and then a film of the resin composition is continuously extruded and molded from the T-die 7. Having been covered with a very thin film 8a of the simple polyetherimide resin, on a flow passage face of the lip portion 7a of the T-die 7, a resin composition layer 8b including a polyetherimide resin and a fluorine resin, which has affinity with the film 8a, is then formed at a center part.
A method of manufacturing a film for a film capacitor, the method comprising:
Dependencies are inferred from the claim text.