Shin-Etsu Polymer Co., Ltd.

Denso Corporation

Shin-Etsu Chemical Co., Ltd.

Yuzo Morioka

Kazuhiro Suzuki

Junya Ishida

Kenro Takizawa

Michimasa Ote

Masahiko Minemura

Manabu Maeda

Mamoru Hagiwara

Katsunori Iwase

Mitsuaki Negishi

Takashi Gonda

Mika Kawakita

When extrusion of a molten resin by means of an extruder is started, a simple polyetherimide resin is melt extruded from a lip portionof a T-die, 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. Having been covered with a very thin filmof the simple polyetherimide resin, on a flow passage face of the lip portionof the T-die, a resin composition layerincluding a polyetherimide resin and a fluorine resin, which has affinity with the film, is then formed at a center part.

Method of manufacturing film for film capacitor and film for film capacitor

The present invention provides a method for manufacturing a film for a film capacitor making it possible to produce a film for a film capacitor which has a thickness of 10 &#x3bc;m or less and which is excellent in a heat resistance and a voltage resistance at a high thickness accuracy by using a polyetherimide resin and provides as well a film for a film capacitor. The above manufacturing method comprises the steps of:

Method for manufacturing resin film for thin film-capacitor and the film therefor

An asymmetric membrane contains a porous layer and a dense layer adjacent thereto. The porous layer and the dense layer are formed of a polymeric material. The porous layer and/or dense layer contains a filler. The amount of the filler is 11 parts by mass or more per 100 parts by mass of the polymeric material contained in the asymmetric membrane.

Asymmetric membrane and air-conditioning system using the same

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Saitama, Japan

Yuzo Morioka