Agc Inc.

Canon Kabushiki Kaisha

Asahi Glass Company, Limited

Japan Display Inc.

Hiroyuki Watabe

Susumu Saito

Satoru Hommura

Takeshi Hirai

Toshihiro Tanuma

Seigo Kotera

Hirokazu Wakabayashi

Takumi Okuyama

Yoshitaka Ozeki

Shigeru Aida

Jun Kato

Seiji Uejima

Ichiro Terada

Chikaya Tamitsuji

Daisuke Jomuta

Tatsuya Miyajima

Hiroshi Uyama

Katsuya Fujii

Hirotsugu Oka

Masahiro Kaseda

Chie Matsubara

Mitsuhisa Matsumoto

To provide a liquid composition capable of forming a polymer electrolyte membrane which is excellent in the initial power generation characteristics when made into a membrane electrode assembly, and which is excellent in durability and has few defects. This liquid composition comprises a liquid medium, a sulfonic acid group-containing fluorocarbon polymer and a hardly soluble cerium compound, wherein the ion exchange capacity of the sulfonic acid group-containing fluorocarbon polymer is from 1.36 to 2.50 meq/g dry resin, the average particle size of the hardly soluble cerium compound is from 1 nm to 3,000 nm, and the ratio of the total number of moles of cerium atoms in the hardly soluble cerium compound to the total number of moles of sulfonic acid groups in the sulfonic acid group-containing fluorocarbon polymer is from 0.001 to 0.3.

Liquid composition, polymer electrolyte membrane, membrane electrode assembly and polymer electrolyte fuel cell

According to one embodiment, a detection device includes a substrate, a photoelectric conversion element provided on the substrate and including a semiconductor layer, a transistor provided to correspond to the photoelectric conversion element, and a green color filter provided above the photoelectric conversion element.

Detection device and display device

To provide a sulfonic acid group-containing polymer which is capable of forming a low hydrogen permeable membrane, which shows a high ion exchange capacity, and which shows a proper softening temperature. The sulfonic acid group-containing polymer has units u1 represented by the following formula u1, units u2 represented by the following formula u2, and units u3 based on tetrafluoroethylene, in the formula u1, Rand Rare each independently a Cperfluoroalkylene group, and Zis a hydrogen ion, a metal ion, or an ammonium ion,—[CF—CF(CFO—R)]—  Formula u2in the formula u2, Ris a perfluoroalkyl group which may contain a SOZgroup and/or an etheric oxygen atom.

Sulfonic acid group-containing polymer, fluorosulfonyl group-containing polymer, and liquid composition

The present invention provides a fluoropolymer containing fluorosulfonyl groups capable of forming a polymer electrolyte membrane with high conductivity and hot water resistance, a method for its production, a fluoropolymer containing acid-form sulfonic acid groups and a method for its production, a polymer electrolyte membrane, a membrane-electrode assembly and a polymer electrolyte fuel cell. The method for producing a fluoropolymer containing fluorosulfonyl groups of the present invention comprises copolymerizing a monomer m1 (CF═CFCFO-Q-SOF) and TFE in a reactor at a temperature of from 150 to 200° C. in the presence of a radical polymerization initiator, wherein the radical polymerization initiator is continuously or sequentially added into the reactor so that the concentration of the radical polymerization initiator is kept to at most 2.5 mass ppm of the initial feed of the monomer m1 present in the reactor before initiation of the copolymerization during the copolymerization, and the molar ratio of the total feed of the monomer m1 to the total feed of tetrafluoroethylene is from 1.5 to 20.

Fluorosulfonyl group-containing fluoropolymer and method for producing same, sulfonic acid group-containing fluoropolymer and method for producing same, solid polymer electrolyte membrane, membrane electrode assembly, and solid polymer fuel cell

To provide a method for producing a fluorinated polymer, in which it is possible to efficiently and easily control the molecular weight to be proper when polymerizing a perfluoromonomer having a dioxolane ring containing a polymerizable double bond in the ring skeleton, and in which the obtainable fluorinated polymer is less susceptible to a decrease in molecular weight even when contacted with a base. A method for producing a fluorinated polymer, comprising polymerizing a raw-material mixture which contains at least one of a monomer composition M11 which comprises a perfluoromonomer represented by the formula m11 and a fluorinated monomer m11H having at least some of fluorine atoms of said perfluoromonomer substituted by hydrogen atoms, and a monomer composition M12 which comprises a perfluoromonomer represented by formula m12 and a fluorinated monomer m12H having at least some of fluorine atoms of said perfluoromonomer substituted by hydrogen atoms, wherein the total amount of the fluorinated monomer mil H and the fluorinated monomer m12H is from 10 to 1,100 ppm to the total amount of the monomer composition M11 and the monomer composition M12.

Method for producing fluorinated polymer and method for producing fluorinated ion exchange polymer

An acid-type sulfonic acid group-containing polymer containing perfluoromonomer units, no monomer units having a halogen atom other than a fluorine atom, and acid type sulfonic acid groups, whose hydrogen gas permeability coefficient under the conditions of a temperature of 80° C. and a relative humidity of 10% is at most 2.5×10cm·cm/(s·cm·cmHg), and whose mass reduction rate when immersed in hot water at 120° C. for 24 hours is at most 15 mass %. Liquid composition, membrane electrode assembly, polymer electrolyte fuel cell, and ion exchange membrane utilizing the acid-type sulfonic acid group-containing polymer.

Acid-type sulfonic acid group-containing polymer, liquid composition, polymer electrolyte membrane, membrane electrode assembly, polymer electrolyte fuel cell and ion exchange membrane for water electrolysis

To provide a method for fractionating a liquid composition, which is excellent in separability of the liquid composition. This method for fractionating a liquid composition comprises discharging, from a discharge port of a filling nozzle, a liquid composition containing a solvent and a polymer having ion exchange groups, and fractionating a predetermined amount of the liquid composition, characterized in that the temperature of the liquid composition is controlled so that the average tan &#x3b4;1 of the liquid composition when discharged from the discharge port of the filling nozzle becomes to be at most 1.00.

Method for fractionating liquid composition

An apparatus connected to a first display apparatus of head mounted type including two or more displays and to a second display apparatus includes a determination unit configured to determine an image to be displayed on a display that corresponds to a dominant eye of a wearer wearing the first display apparatus among the two or more displays of the first display apparatus based on information about the dominant eye of the wearer of the first display apparatus and a control unit configured to perform control to display the determined image on the second display apparatus.

Apparatus configured to display shared information on plurality of display apparatuses and method thereof

To provide a liquid composition with which a catalyst layer and a polymer electrolyte membrane will hardly be broken at the time of their formation and a method for producing the liquid composition; and a method for producing a membrane/electrode assembly by which a catalyst layer and a polymer electrolyte membrane will hardly be broken at the time of their formation. A liquid composition comprising a polymer having ion exchange groups, water and an organic solvent, wherein

Liquid composition, method for producing it, and method for producing membrane/electrode assembly

There is provided an information processing apparatus that displays an image on a display unit mounted with a position sensor, and includes a selection unit configured to select one of a sensor coordinate system of the position sensor and a coordinate system different from the sensor coordinate system, an acquisition unit configured to acquire information about a position output from the position sensor, in the coordinate system selected by the selection unit, and a control unit configured to display an image based on the information about the position acquired by the acquisition unit, on the display unit.

Information processing apparatus, information processing method, and storage medium

To provide a polymer capable of forming a polymer electrolyte membrane that is resistant to breakage even when being repeatedly subjected to humidification and drying or a catalyst layer that is resistant to formation of cracks; a polymer electrolyte membrane employing said polymer; and a membrane/electrode assembly for a polymer electrolyte fuel cell. A polymer comprising units (u1) having two ion-exchange groups and units (u2) of e.g. a perfluoro(alkyl vinyl ether), wherein the molar ratio (u2)/((u1)+(u2)) is more than 0.30 and at most 0.70. A membrane/electrode assemblycomprising an anodehaving a catalyst layerand a gas diffusion layer, a cathodehaving a catalyst layerand a gas diffusion layer, and a polymer electrolyte membranedisposed between the anodeand the cathodein a state of being contact with the catalyst layers, wherein either one or each of the catalyst layersand the polymer electrolyte membranecontains the aforementioned polymer.

Polymer, polymer electrolyte membrane and membrane/electrode assembly

To provide a membrane/electrode assembly excellent in the power generation characteristics in a wide temperature range and a wide humidity range; an electrolyte material suitable for a catalyst layer of the membrane/electrode assembly; and a liquid composition suitable for forming a catalyst layer of the membrane/electrode assembly. To use an electrolyte material which is formed of a polymer (H) obtained by converting precursor groups in a polymer (F) having structural units (A) based on a perfluoromonomer having a precursor group represented by the formula (g1), structural units (B) represented by the formula (u2), and structural units (C) based on tetrafluoroethylene, wherein the proportion of the structural units (A) is from 8 to 19 mol %, the proportion of the structural units (B) is from 65 to 80 mol %, and the proportion of the structural units (C) is from 1 to 27 mol %, to ion exchange groups. 

Electrolyte material, liquid composition and membrane/electrode assembly for polymer electrolyte fuel cell

To provide methods for producing a liquid composition, a coating liquid for a catalyst layer and a membrane electrode assembly, capable of making cracking less likely to occur at the time of forming a solid polymer electrolyte membrane or a catalyst layer. A copolymer having a structural unit represented by &#x2014;[CF&#x2014;CF{(OCFCFX)O(CF)SOH}]&#x2014; (wherein X: F or CF, m: 1 to 3, p: 0 or 1, and n: an integer of 1 to 12) and a structural unit derived from tetrafluoroethylene, is dispersed in a medium containing water and a hydrocarbon-type alcohol (but not including a fluorinated solvent) to prepare a dispersion wherein the concentration of the copolymer is from 13 to 26 mass %, and the dispersion and a fluorinated solvent are mixed so that the sum of the concentration of the copolymer and the concentration of the fluorinated solvent becomes to be from 17 to 35 mass %, to prepare a liquid composition.

Methods for producing liquid composition, coating liquid for catalyst layer and membrane electrode assembly

A process for producing a liquid composition, which includes holding a fluorinated polymer having &#x2014;SOF groups at from 140 to 160&#xb0; C. for at least 45 minutes, cooling it to less than 110&#xb0; C. at a rate of at least 50&#xb0; C./min, converting the &#x2014;SOF groups in the fluorinated polymer to ion exchange groups to obtain a fluorinated polymer having ion exchange groups, and mixing the fluorinated polymer having ion exchange groups and a liquid medium.

Process for producing liquid composition and process for producing catalyst layer-forming coating liquid

A process for producing a liquid composition, which includes holding a fluorinated polymer having &#x2014;SOF groups at from 110 to 130&#xb0; C. for at least 45 minutes, cooling it to less than 110&#xb0; C., converting the &#x2014;SOF groups in the fluorinated polymer to ion exchange groups to obtain a fluorinated polymer having ion exchange groups, and mixing the fluorinated polymer having ion exchange groups and a liquid medium.

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Chiyoda-ku, Japan

Hiroyuki Watabe