Shin-etsu Polymer Co., Ltd.

Denso Corporation

Shin-etsu Chemical Co., Ltd.

Junya Ishida

Kazuhiro Suzuki

Katsunori Iwase

Kenro Takizawa

Masahiko Minemura

Mamoru Hagiwara

Manabu Maeda

Yuzo Morioka

Akira Yamamoto

Mitsuaki Negishi

Takashi Gonda

Takashi Nogami

Mika Kawakita

Michimasa Ote

Masaru Yoneyama

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

A film for film capacitors having a thickness of 10 microns or less, is manufactured by the successive steps of: mixing and preparing a forming material composed of a thermoplastic resin composition; melting and extruding the forming material to a film through a T-die; pinching and cooling the film between a pressure roll and a cooling roll having a rough surface for forming a rough surface to the film, wherein the rough surface of the cooling roll has (&#x3c3;/Ra) of 0.2 or less, and the rough surface of the film has (&#x3c3;/Ra) of 0.2 or less, where (Ra) is an arithmetic average roughness defined by a method specified in JIS B 0601 2001, and (&#x3c3;) is a standard deviation; and rolling up the cooled film onto a winding tube in a winding unit.

Method for manufacturing film for film capacitor

The present invention provides a resin film for a film capacitor making it possible to obtain the excellent heat resistance, materialize a reduction in a size of the film capacitor and an increase in a capacity thereof and satisfy a reduction in a thickness of the film and a high voltage resistance thereof. In a manufacturing method in which an extruding equipmentis charged with a molding materialto extrude a filmfor a film capacitor from a T dice, in which the above extruded filmfor a film capacitor is interposed between plural rolls in a receiving deviceand cooled and in which the above cooled filmfor a film capacitor is wound on a winding tubeof a winding device, 100 parts by mass of a polyetherimide resin is blended with 1 to 10 parts by mass of a fluorocarbon resin to prepare the molding material; the above molding materialis extruded through a filterhaving apertureswhich are 0.5 to 6 times or less as large as an average thickness of the filmfor a film capacitor, which is provided between the extruding equipmentand the T dice; and a thickness of the filmfor a film capacitor is controlled to 10 &#x3bc;m or less.

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

The present invention provides an air-conditioning system that supplies a gas to a space to be air-conditioned and/or discharges a gas from the space to be air-conditioned through a permeable membrane in order to provide an air-conditioning system that can sufficiently block suspended matter in the air such as SPM, and can sufficiently introduce outside air in which the permeable membrane is an asymmetric membrane formed of a polymeric material prepared by polymerizing a monomer composition containing a predetermined monomer.

Air-conditioning system

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

A permselective material has a polymer having an organosiloxane skeleton and containing a dispersed solid additive. When oxygen and nitrogen are passed through a membrane having the permselective material, the relation between the permeability coefficients [cm&#xb7;cm&#xb7;sec&#xb7;cm&#xb7;cmHg] of oxygen and nitrogen at a temperature of 23&#xb1;2&#xb0; C. under a pressure difference of 1.05 atm to 1.20 atm through the membrane is expressed by Formula (1): where P(O) denotes the permeability coefficient of oxygen, while P(N) denotes the permeability coefficient of nitrogen.

Selectively permeable material, method for producing selectively permeable membrane structure, selectively permeable membrane structure, and air conditioning system

Growing community of inventors

Saitama, Japan

Junya Ishida