Abstract: The present invention provides a method for manufacturing a cellulose nanofiber, characterized by comprising the step of fibrillating cellulose in a polyester based resin, preferably in a polyester based resin having an ester group concentration of 6.0 mmol/g or more and a cellulose nanofiber produced by the manufacturing method concerned. In addition, the present invention provides a masterbatch composition containing the cellulose nanofibers and the polyester based resin. Furthermore, the present invention provides a resin composition containing the masterbatch composition and a diluent resin and a processed product thereof.

Abstract: The present invention relates to modified cellulose nanofibers obtained by neutralizing cationic groups of cationic cellulose nanofibers with an anionic additives. Moreover, the present invention relates to a resin composition containing the aforementioned modified cellulose nanofibers and a molding resin, and to a molded body obtained by molding the resin composition. Furthermore, the present invention relates to a production method of modified cellulose nanofibers comprising neutralizing cationic groups of cationic cellulose nanofibers with an anionic additives.

Abstract: The present invention provides a method for manufacturing a cellulose nanofiber, characterized by comprising the step of fibrillating cellulose in a polyester based resin, preferably in a polyester based resin having an ester group concentration of 6.0 mmol/g or more and a cellulose nanofiber produced by the manufacturing method concerned. In addition, the present invention provides a masterbatch composition containing the cellulose nanofibers and the polyester based resin. Furthermore, the present invention provides a resin composition containing the masterbatch composition and a diluent resin and a processed product thereof.

Abstract: A modified microfibrillated cellulose, a resin composition and a resin composite material that contain the modified microfibrillated cellulose are provided. In a modified microfibrillated cellulose according to the present invention, a hydrolyzable-silyl-group-containing resin (A) bonds to or adheres to a cellulose surface and a silicon atom content is 0.01 to 0.5 atomic percent. A resin composition containing 0.1% to 10% by weight of the modified microfibrillated cellulose is also provided.

Abstract: A modified microfibrillated cellulose, a resin composition and a resin composite material that contain the modified microfibrillated cellulose are provided. In a modified microfibrillated cellulose according to the present invention, a hydrolyzable-silyl-group-containing resin (A) bonds to or adheres to a cellulose surface and a silicon atom content is 0.01 to 0.5 atomic percent. A resin composition containing 0.1% to 10% by weight of the modified microfibrillated cellulose is also provided.

Abstract: The present invention provides a separator for a fuel cell comprising a resin and a conductive material as constituting components, and sulfonic acid groups imparted to at least one portion at the surface of gas channels by a treatment using a sulfuric acid-containing gas, wherein the resin and the sulfonic acid groups, which are on the surface of the gas channels, are bonded, and a ratio of sulfur atoms in the sulfonic acid groups at the surface of the gas channels as determined by energy-dispersive X-ray spectroscopy is in a range from 0.1 to 4.0 at %, and a method for producing the separator. The separator for a fuel cell of the present invention is excellent in the wettability to water, since sulfonic acid groups are imparted to the resin at the surface of gas channels in the sulfuric acid-containing gas.

Abstract: The present invention offers sheet molding material for obtaining a thin fuel cell bipolar plate with excellent conductivity and thickness precision, production method thereof, and a fuel cell bipolar plate made by molding the sheet molding material. It relates to sheet molding material for a fuel cell bipolar plate and production method thereof, wherein the sheet molding material has carbon particle layer on at least one surface of the resin sheet, and the percentage of particles of carbon layer in the sheet molding material is 70% to 90% by weight.

Abstract: An object of the present invention is to provide a conductive resin composition which does not cause problems with regard to moldability such as occurrence of separation between a resin component and a conductive filler, voids and warp on molding, and is excellent in filling of a resin into a mold, and is also capable of being used for various electrical and electronic materials, including a separator for a fuel cell having excellent properties.

Abstract: A fuel cell bipolar plate has a front surface and a rear surface opposite to each other, and flash and a receding portion. The flash is provided on the front surface at an outer peripheral portion of the bipolar plate and projects in a direction crossing the front surface. The receding portion is provided on the rear surface at an outer peripheral portion of the bipolar plate in a geometry capable of accommodating flash.

Abstract: A curable resin composition, which is a solid resin at ordinary temperatures obtained by reacting an epoxy resin with a (meth)acrylic anhydride, contains an unsaturated resin having a (meth)acryloyl group (A) which has a double bond equivalent weight of 200 to 500, an ester number of 100 to 300, and a hydroxyl number of no more than 130, an ethylenically unsaturated monomer (B), and a radical polymerization initiator (C).

Abstract: A fuel cell bipolar plate that while retaining its mechanical strength, has its electrical conductivity enhanced; a process for producing the same; and a fuel cell including the bipolar plate.

Abstract: The present invention provides a separator for a fuel cell comprising a resin and a conductive material as constituting components, and sulfonic acid groups imparted to at least one portion at the surface of gas channels by a treatment using a sulfuric acid-containing gas, wherein the resin and the sulfonic acid groups, which are on the surface of the gas channels, are bonded, and a ratio of sulfur atoms in the sulfonic acid groups at the surface of the gas channels as determined by energy-dispersive X-ray spectroscopy is in a range from 0.1 to 4.0 at %, and a method for producing the separator. The separator for a fuel cell of the present invention is excellent in the wettability to water, since sulfonic acid groups are imparted to the resin at the surface of gas channels in the sulfuric acid-containing gas.

Abstract: A fuel cell bipolar plate has a front surface and a rear surface opposite to each other, and flash and a receding portion. The flash is provided on the front surface at an outer peripheral portion of the bipolar plate and projects in a direction crossing the front surface. The receding portions is provided on the rear surface at an outer peripheral portion of the bipolar plate in a geometry capable of accommodating flash.

Abstract: A fuel cell bipolar plate that while retaining its mechanical strength, has its electrical conductivity enhanced; a process for producing the same; and a fuel cell including the bipolar plate.

Abstract: An address translating program enables a server to identify the addresses of clients without the need for any special processing on the side of the server. When a computer receives a request packet, which has a source address translated into the address of a proxy server, output from a client to a server, via the proxy server, the computer analyzes contents of the request packet to acquire the address of the client. Then, the computer translates the source address of the request packet into the acquired address of the client and transmits the request packet to the server. Then, when the computer receives a response packet in response to the request packet from the server, the computer translates a destination address of the response packet from the address of the client into the address of the proxy server, and transmits the response packet to the proxy server.

Abstract: The present invention offers sheet molding material for obtaining a thin fuel cell bipolar plate with excellent conductivity and thickness precision, production method thereof, and a fuel cell bipolar plate made by molding the sheet molding material. It relates to sheet molding material for a fuel cell bipolar plate and production method thereof, wherein the sheet molding material has carbon particle layer on at least one surface of the resin sheet, and the percentage of particles of carbon layer in the sheet molding material is 70% to 90% by weight.

Abstract: A curable resin composition, which is a solid resin at ordinary temperatures obtained by reacting an epoxy resin with a (meth)acrylic anhydride, contains an unsaturated resin having a (meth)acryloyl group (A) which has a double bond equivalent weight of 200 to 500, an ester number of 100 to 300, and a hydroxyl number of no more than 130, an ethylenically unsaturated monomer (B), and a radical polymerization initiator (C).

Abstract: A method for manufacturing fuel cell bipolar plates involves heating and softening a nonwoven fabric including an electrically conductive powder and thermoplastic resin fibers of 0.1 to 20 ?m diameter, and shaping the softened nonwoven fabric.

Abstract: An object of the present invention is to provide a conductive resin composition which does not cause problems with regard to moldability such as occurrence of separation between a resin component and a conductive filler, voids and warp on molding, and is excellent in filling of a resin into a mold, and is also capable of being used for various electrical and electronic materials, including a separator for a fuel cell having excellent properties.

Abstract: A terminal device and a control server device are connected with each other via a switch. The switch is connected to a network. The switch includes a communication processing unit that accepts connection propriety information and controls the connection of the terminal device to the network using the connection propriety information. The connection propriety information is information about whether the terminal device is allowed to be connected to the network and it is generated by the control server device based on security countermeasure level data of the terminal device.