Asahi Kasei Fibers Corporation

Nitto-denko Corporation

Asahi Kasei Kabushiki Kaisha

Astom Corporation

Ikuo Ueno

Kazufumi Kato

Rumina Obi

Minoru Yoshida

Hiroki Fujioka

Mieko Nishi

Hirotoshi Ishizuka

Norihisa Matsuo

Kazuaki Shikata

Takaharu Irie

Tatsuhiko Miya

An object of the present invention is to provide a composite membrane support composed of a dry process thermoplastic resin filaments nonwoven fabric having a significantly high uniformity to enable formation of a porous layer free from strike-through or a defect such as pinhole at the film formation, producing no skin layer defect at the formation of a skin layer, and being excellent in the mechanical strength and dimensional stability at high temperatures, and a high-performance composite membrane and a composite membrane element each using the composite membrane support. The composite membrane support of the present invention is a laminate dry process thermoplastic resin filaments nonwoven fabric comprising three or more layers containing at least a meltblown fiber layer as an interlayer and spunbond fiber layers on both sides of the interlayer, wherein the average value of air flow resistance is from 2.0 to 30.0 kPa&#xb7;s/m and the ratio between the average value and the standard deviation of air flow resistance is 0.6 or less.

Composite membrane support and composite membrane using the same

Disclosed is an electromagnetic shielding sheet that has a smaller increase in the thickness of a base after the formation of a metal coating film when compared with conventional electromagnetic shielding sheets, and which has excellent electromagnetic wave shielding properties despite a small amount of adhered metal. According to the present invention, the electromagnetic shielding sheet can endure metal working processes and has high electromagnetic wave shielding properties, resulting in a thin, very flexible fabric sheet. Specifically disclosed is an electromagnetic shielding sheet which is composed of a laminated non-woven fabric that has at least a first layer and a second layer, and which is characterized in that the first layer is a layer of thermoplastic synthetic fibers having a fiber diameter of 6 &#x3bc;m to 50 &#x3bc;m, the second layer is a layer of ultrafine fibers having a fiber diameter of 0.1 &#x3bc;m to 5.0 &#x3bc;m, and a metal is adhered to at least one surface of the sheet.

Electromagnetic shielding sheet

There is provided a high performance solid electrolytic capacitor that can be manufactured stably. The present invention provides the solid electrolytic capacitor comprising an anode foil and a cathode foil, and a separator arranged between the anode foil and the cathode foil, wherein the anode foil, the cathode foil, and the separator are wound around, so that the separator is intervened between the anode foil and the cathode foil, the anode foil has a dielectric oxide film layer, the separator comprises a solid electrolyte and a nonwoven fabric holding the solid electrolyte, the nonwoven fabric composing the separator is a laminated nonwoven fabric having at least two layers of the nonwoven fabric layers, and the laminated nonwoven fabric comprises a nonwoven fabric layer (layer I) composed of ultra fine fiber having a fiber diameter of 0.1 to 4 &#x3bc;m, and a nonwoven fabric layer (layer II) composed of a thermoplastic resin fiber having a fiber diameter of 6 to 30 &#x3bc;m.

Solid electrolytic capacitor

A thermally adhesive laminated nonwoven fabric that is a laminated nonwoven fabric in which nonwoven fabrics of the following (a) layer, (b) layer and (c) layer are integrated by heat contact bonding:

Thermally adhesive laminated nonwoven fabric

Growing community of inventors

Tokyo, Japan

Ikuo Ueno