Nichias Corporation

Toyota Jidosha Kabushiki Kaisha

Katsuya Kusuno

Yasuyuki Asai

Chisato Kato

Atsushi Omura

Kazuo Nishimoto

Hitoshi Yamada

Naohiro Takeshita

Tetsuo Ohinata

Kazuki Morimoto

Toru Segawa

Shuichiro Wada

A rubber gasket to be disposed in a compressed state between separators of a fuel cell includes a sealing portion having a sectional shape of a two-projection structure with a first projection having a curved slope of a first curvature radius (D), and a second projection provided on the first projection and having a second curvature radius (H). A pedestal portion extends in a horizontal direction with a predetermined thickness continuously from a foot portion of the curved slope of the first projection and has a flat bottom surface.

Rubber gasket for separator of fuel cell

The present invention provides a resin composition which can contain a large amount of a filler, has excellent moldability, can provide a molded product having both high electrical conductivity and mechanical strength, and is especially useful for a fuel cell separator and a sealing material. The resin composition comprises A) 100 parts by weight of a resin composed of 0 to 99 parts by weight of an epoxy resin and 1 to 100 parts by weight of a polyimide resin, with the proviso that the total amount of the epoxy resin and the polyimide resin is 100 parts by weight, and B) 40 to 900 parts by weight of at least one filler selected from the group consisting of graphite, ketjen black, acetylene black, furnace carbon black and thermal carbon black.

Resin composition

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Shizuoka, Japan

Katsuya Kusuno