Kaneka Corporation

Yasuo Fushiki

Naoki Hase

Hiroyuki Tsuji

Kenji Kobayashi

Hiroyuki Furutani

Takashi Kikuchi

Kosuke Kataoka

Susumu Fukuda

Hiroshi Ogoshi

Kazuyoshi Mimura

Shinji Matsukubo

A method for manufacturing a heat resistant flexible laminate effectively enabling avoidance of not only visual defects but occurrence of dimensional changes, and a heat resistant flexible laminate are provided. In a process for laminating a heat resistant adhesive material and a metallic foil by thermal lamination, a film-like protective material is disposed between a pressurized surface and the metallic foil at the time of thermal lamination. At this time, coefficients of linear expansion in a temperature range of 200 degree C. to 300 degree C. of the heat resistant adhesive material and the protective material are within a range of a coefficient of linear expansion of the metallic foil &#xb1;10 ppm/degrees C. Thereby, occurrence of visual defects is not only effectively avoidable, but excellent dimensional change after etching may be exhibited.

Process for producing heat-resistant flexible laminate and heat-resistant flexible laminate produced thereby

The present invention provides a method for producing a laminate suitable for a flexible circuit board which is free from visual defects such as wrinkles and curls that appear when a plurality of laminating materials containing a thermally fusible laminating material are formed by thermally laminating these materials each other using a thermal-press forming device, which comprises the steps of: arranging a heat resistant protective material between a pressing surface and the laminating materials, laminating the materials by thermal pressure at not lower than 200&#xb0; C., wherein the bonded laminating materials are in contact with the protective material, cooling the bonded laminating materials, and peeling off the protective material from the bonded laminating materials, whereby the laminate with less nonuniformity in pressurization, a uniform surface, and a good inter-layer adhesion, and the method and device for producing the laminate can be provided, more particularly, the thermal pressure and forming is performed by a thermal-press forming device having at least a pair of metal rolls.

Method and device for manufacturing laminated plate

A developing roller ( ) comprising an elastic layer ( ) wound round a conductive shaft ( ) and one or more resin layers ( ) laminated on the elastic layer. The elastic layer ( ) has a JIS A hardness of not greater than 50 degrees. At least the outermost layer of the one or more resin layers ( ) contains fine particles and the surface roughness (R ) of the outermost layer is regulated to be within the range of 3 to 15 &mgr;m. A resin composition containing an &mdash;NHCO&mdash; bound or a resin composition containing &mdash;ROCO &mdash; and &mdash;SiOSi&mdash; repeating units and an &mdash;NHCO&mdash; bond can be used for the outermost layer.

Roller for electrophotographic systems having surface roughness adjusted by fine particles

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Kyoto, Japan

Yasuo Fushiki