Jsr Corporation

Honda Giken Kogyo Kabushiki Kaisha

Other

Honda Motor Co., Ltd.

Ube Industries, Inc.

Hyperion Catalysis International, Inc.

Nomura Research Institute, Ltd.

Kohei Goto

Yoshitaka Yamakawa

Masayuki Takahashi

Igor Rozhanskii

Mayumi Kakuta

Nagayuki Kanaoka

Makoto Higami

Toshiyuki Akiike

Kinji Yamada

Masaru Iguchi

Yoichi Asano

Hiroshi Sohma

Takashi Okada

Yuichi Hashiguchi

Nobuyuki Miyaki

Toshiaki Kadota

Yoshikazu Miyamoto

Junji Kawai

Keiji Konno

Yousuke Konno

Toshihiro Ohtsuki

Fusazumi Masaka

Tadahiro Shiba

Eiji Hayashi

Hiroshi Nakashima

Naoki Mitsuta

Atsushi Shiota

Michinori Nishikawa

Nobuhiro Saito

Takahiko Kurosawa

Masaaki Nanaumi

Makoto Sugiura

Ryoichiro Takahashi

Hiroshi Soma

Hideki Ozawa

Toshihiro Otsuki

Junji Matsuo

Osamu Kakutani

Takumi Miyachi

Yasutake Inoue

Minoru Matsubara

Yuzo Ishida

Yosuke Konno

Teruhiko Umehara

Kiyonori Kita

Rikio Yokota

Matthias Patz

Nobuaki Kozuka

Toru Shiibashi

Akio Saita

Mayumi Shinoda

Hironori Katsura

Kotaro Ozawa

Kimihiko Yoshii

Ryo Kamimura

Kojun Terai

Yuji Naito

Gen Okiyama

Motokazu Takeuchi

Kengo Yaji

A data management system including an AP server and a DB server. The AP server sends business data to the DB server and requests registration. The business data includes combination of parent data and a plurality of pieces of child data with mutual relevance, and each child data has ID of the parent data. In registering business data, the AP server first tries to register each child data, and requests registration of the parent data when a notification of registration completion of all pieces of the child data arrives from the DB server. When the notification of registration completion of any of the child data has not arrived, the AP server cancels the registration of the parent data. In referring to the business data, the AP server sets only child data with related parent data registered therein as a target.

Data management system

A proton conductive membrane displays sufficient proton conductivity even at low humidities and low temperatures. The proton conductive membrane includes:

Proton conducting membrane and process for producing the same

A proton conductive membrane capable of sufficient proton conductivity even at low humidities and low temperatures is provided. The proton conductive membrane includes a copolymer including an ion conductive polymer segment (A) and an ion nonconductive polymer segment (B) , the membrane absorbing water when it is soaked in 90&#xb0; C. water for 30 minutes of which the quantity of water showing freezing temperatures in the range of &#x2212;30 to 0&#xb0; C. is 0.01 to 3.0 g based on 1 g of the copolymer. The copolymer has a structure in which main chain skeletons of the copolymer are covalently bound at aromatic rings thereof through binding groups.

Proton conductive membrane comprising a copolymer

The norbornene derivative of the present invention is represented by the following formula (Im).  According to the present invention, a novel norbornene derivative that is useful as a precursor monomer for preparing a cycloolefin polymer exhibiting excellent transparency, heat resistance and low-water absorption properties and having been freely controlled in the birefringence properties and the wavelength dispersion properties can be provided. According to the present invention, further, a norbornene ring-opened (co)polymer having excellent transparency and heat resistance, exhibiting high solubility in organic solvents and having specific birefringence properties and wavelength dependence, and a process for preparing the ring-opened (co)polymer can be provided.

Norbornene derivative, norbornene polymer produced by ring-opening (co)polymerization, and process for producing the polymer by ring-opening (co)polymerization

Disclosed is a polymer electrolyte having a protonic acid group that is excellent in thermal stability and dimensional stability. The polymer electrolyte includes copolymers having a sulfonic acid group which has a structure represented by the following formula: wherein X is a divalent electron-withdrawing group; Y is an oxygen or a sulfur; Z and Q are each a direct bond, &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;, &#x2014;SO&#x2014;, &#x2014;[C(R')]&#x2014; (g: integer of from 1 to 8), etc.; R, R&#x2032; and Rto Rare each a hydrogen, a fluorine, an alkyl, a fluorine-substituted alkyl, an aryl or a nitrile; m, n, p, q, r, s, t and u are each an integer of from 0 to 4 (with the proviso that p+q&#x2267;1); and A is a group represented by Formula (5) or (5) below: wherein W is a divalent electron-withdrawing group; S is a protonic acid group; i is an integer of from 1 to 5; and j is an integer of from 1 to 7.

Solid polymer electrolyte, proton conductive membrane, electrode electrolyte, electrode paste and membrane-electrode assembly

The present invention provides a sulfonic group-containing polyarylene block copolymer superior to the perfluoroalkylsulfonic acid polymers in cost, conductive properties and proccessability, a process for producing the copolymer, a solid polymer electrolyte and a proton conductive membrane. The sulfonic group-containing polyarylene block copolymer includes a polymer segment with an ion conductive component represented by the formula (A) and at least one polymer segment without an ion conductive component represented by the formulae (B-1), (B-3) and the like and containing an aromatic ring bonded at the meta-positions or ortho-positions: wherein X is a single bond, &#x2014;CO&#x2014;, &#x2014;SO&#x2014; or the like; W is a single bond, &#x2014;CO&#x2014;, &#x2014;SO&#x2014; or the like; Q is a single bond, &#x2014;O&#x2014;, &#x2014;S&#x2014; or the like; J is a single bond, &#x2014;CO&#x2014;, &#x2014;SO&#x2014; or the like; and Rto Rare each a hydrogen atom, a fluorine atom, an alkyl group or the like.

Sulfonic group-containing polyarylene block copolymer, process for production thereof, solid polymer electrolyte and proton conductive membrane

A membrane-electrode assembly for direct methanol type fuel cell and a proton conductive membrane for direct methanol type fuel cell are disclosed. The membrane-electrode assembly comprises a negative electrode and a positive electrode assembled via a proton conductive membrane, the negative electrode being provided with a negative electrode-side separator having a mechanism for feeding a methanol aqueous solution as a fuel, the positive electrode being provided with a positive electrode-side separator having a mechanism for feeding an oxidizing agent gas, and the proton conductive membrane comprising a polymer containing 0.05-99.95 mol % of a repeating constitutional unit represented by the formula (A), and 0.05-99.95 mol % of a repeating constitutional unit represented by the formula (B).

Membrane-electrode assembly for direct methanol type fuel cell and proton conductive membrane

Disclosed is an aromatic sulfonic acid ester derivative represented by the formula (1); in the formula, X is an atom or a group selected from a halogen atom excluding fluorine, &#x2014;OSOCHand &#x2014;OSOCF, A is a divalent electron attractive group, B is a divalent electron donating group or a direct bonding, Ris a hydrocarbon group of 1 to 20 carbon atoms, Ar is an aromatic group having a substituent of &#x2014;SOR(wherein Ris a hydrocarbon group of 1 to 20 carbon atoms), m is an integer of 0 to 10, n is an integer of 0 to 10 and k is an integer of 1 to 4. Also disclosed is a process for producing a polyarylene having a sulfonic acid group, which process comprises the steps of coupling polymerization of an aromatic compound containing the derivative of the formula (1), to prepare a polyarylene and hydrolysis of the polyarylene, and which process has high safety and is easily capable of controlling the amount of sulfonoc acid group introduced into a polymer and the introducing position thereof.

Aromatic sulfonic acid ester derivative, polyarylene, polyarylene having sulfonic acid group and process for producing the same, and polymer solid electrolyte and proton-conductive membrane

A terminal-crosslinkable polyamic acid oligomer having 1) heat resistance indicated by Tg of 300&#xb0; C. or more and a pyrolysis temperature of 500&#xb0; C. or more, 2) toughness, and 3) capability of allowing an increase in concentration. The polyamic acid oligomer is obtained by reacting an aromatic tetracarboxylic dianhydride including 2,2',3,3&#x2032;-biphenyltetracarboxylic dianhydride, an aromatic diamine compound, and a reactive crosslinking agent including an amino group or acid anhydride group and a crosslinkable group in the molecule, and includes a crosslinkable group at the molecular terminal.

Polyamic acid oligomer, polyimide oligomer, solution composition, and fiber-reinforced composite material

The invention provides a proton conductive membrane excellent in heat resistance, which has sulfonic acid as ion exchange groups. The proton conductive membrane comprises a nitrogen-containing compound that can be mixed with water in arbitrary proportions and has a boiling point of not lower than 100. degree. C. and a proton conductive resin which has sulfonic acid ion-exchange groups, wherein the nitrogen-containing compound is contained in an amount of 0.5 to 10 parts by weight based on 100 parts by weight of the proton conductive resin.

Proton conductive membrane having improved thermal stability

A composite polymer electrolyte membrane is formed from a first polymer electrolyte comprising a sulfonated polyarytene polymer and a second polymer electrolyte comprising another hydrocarbon polymer electrolyte. In the first polymer electrolyte, 2-70 mol % constitutes an aromatic compound unit with an electron-attractive group in its principal chain, while 30-98 mol % constitutes an aromatic compound unit without an electron-attractive group in its principal chain. The second polymer electrolyte is a sulfonated polyether or sulfonated polysulfide polymer electrolyte.

Polymer electrolyte membrane and solid polymer electrolyte fuel cell using same

Halogenated aromatic compound, (co)polymer thereof, and proton-conductive membrane comprising same

Halogenated aromatic compound, polymer thereof, and proton-conductive membrane comprising same

A polyarylene copolymer which comprises (A) aromatic compound units having a main chain containing one or more electron-withdrawing groups therein and (B) aromatic compound units having a main chain containing no electron-withdrawing groups therein, and a proton-conductive membrane comprising the polyarylene copolymer having sulfonic acid groups.

Polyarylene copolymers and proton-conductive membrane

Growing community of inventors

Tokyo, Japan

Kohei Goto