Nichias Corporation

Atsushi Murakami

Kazuo Nishimoto

Takahiro Niwa

Hitoshi Yamada

Motonori Kondoh

Haruko Sasaki

Hiroto Sugai

Takumi Arisawa

Hideyuki Shishitani

Takayoshi Shimizu

Shuuchirou Wada

Shuuichirou Wada

A fuel cell separator is produced by forming a fuel cell separator resin composition including, as essential components, (A) an epoxy resin; (B) a curing agent; (C) a curing accelerator; and (D) a carbon material, in which the content of the (D) is 50 to 85% by mass based on the total amount of the composition, in which the (D) includes high crystalline artificial graphite having an average particle size of 100 &#x3bc;m or more and less than 150 &#x3bc;m in an amount of 5 to 100% by mass based on the total amount of the (D), and in which the content of the (C) is 0.1 to 20 parts by weight per 100 parts by weight of the (B). The resin composition is excellent in electric conductivity and fluidity and contains little impurities, and can provide a fuel cell separator which is excellent in electric conductivity and dimensional accuracy, and has no fear of causing deterioration in performance of a solid electrolyte.

Resin composition for fuel cell separator, process for producing same, and fuel cell separator

The present invention provides a separator for fuel cell, which is a molded article including a resin and a conductive filler, wherein a contact angle of water on a surface of the separator for fuel cell is from 20 to 85&#xb0;, and a process for producing the separator for fuel cell.

Process for producing a fuel cell separator

A shape memory foam member is disclosed. A coefficient of water absorption of the shape memory foam member is in the range between 0.01 g/cm and 0.2 g/cm in a non-compressed state. The shape memory foam member is compressed with heating; cooled with keeping the shape memory foam member in the compressed state; and released from the compressive pressure on the shape memory foam member after cooling. The original shape of the shape memory foam member is substantially recovered by heating.

Shape memory foam member and method of producing the same

A sound absorbing structure comprising at least one porous member including a plurality of holes, and the holes are at least one kind of through holes and non-through holes. It is preferable that a plurality of porous members are stacked. It is also preferable that the holes of porous members are formed as diameter-varied holes, and an area of opening of each diameter-varied hole formed in the surface opposite to a sound source is largest and the area of opening of each the diameter-varied hole is reduced in a direction of the thickness of the porous member. Moreover, it is also preferable that the sound absorbing structure further comprises a coating film formed on at least a surface of the porous member which is opposite to a sound source wherein the holes penetrates the coating film and the porous member.

Sound absorbing structure

A sound absorbing structure including a film with through holes formed is laminated on a porous member having communicating voids on the side facing a sound source. At least one of the through holes has an opening area of 19 mm or more, and the total of the opening area accounts for 1 to 70% with respect to the area of a film formation surface on the porous member. A soundproof cover including the sound absorbing structure disposed on the inner surface of a cover main body are also provided.

Disclosed is a rubber composition for fluorocarbons and/or refrigerating machine oil use, which comprises at least one of a nitrile group-containing rubber, a chloroprene rubber, and an ethylene propylene rubber as a base and at least one of an epoxy compound selected from the group consisting of a monofunctional epoxy compound, a glycidyl ether type epoxy compound and a glycidyl ether type epoxy compound and a compound represented by formula: ##STR1## wherein R.sup.1 represents a hydrogen atom or an alkyl group, R.sup.2 represents an alkyl group or a phenyl group, R.sup.3 represents an alkyl group, an alkoxy group or an alkenyloxy group, and n is 1 or 2.

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Hamamatsu, Japan

Atsushi Murakami