Jsr Corporation

Honda Motor Co., Ltd.

Other

Makoto Higami

Yoshitaka Yamakawa

Kohei Goto

Ryoichiro Takahashi

Igor Rozhanskii

Nagayuki Kanaoka

Hiroshi Shinkai

Kaoru Fukuda

Masayuki Takahashi

Keiichi Bessho

Hisao Ono

Yoichi Asano

Toshiaki Kadota

Osamu Kakutani

Katsuhiro Ishikawa

Gen Okiyama

Provided is a varnish which contains a solvent and an electrode electrolyte for a solid polymer fuel cell electrolyte, which contains a polymer with a structure having a main chain including a polyphenylene, a side chain including a sulfonic acid group and a repeating structural unit as a side chain including a nitrogen-containing heterocyclic group.

Varnish for a solid polymer fuel cell

The present invention provides an electrode paste which comprises catalyst particles, a solvent and an varnish which comprises a solvent and an electrode electrolyte for a solid polymer fuel cell electrolyte, wherein the electrode electrolyte comprises a polymer with a structure having a main chain including a polyphenylene, a side chain including a sulfonic acid group and a repeating structural unit represented by formula (C) as a side chain including a nitrogen-containing heterocyclic group; wherein the structural variables are defined herein.

Polyphenylene-containing electrode paste

A nitrogen-containing aromatic compound is represented by Formula (1). A polymer is obtained by polymerizing the compound. wherein X is an atom or a group selected from halogen atoms other than fluorine and &#x2014;OSORb (wherein Rb is an alkyl group, a fluorine-substituted alkyl group or an aryl group); Y is at least one structure selected from the group consisting of &#x2014;CO&#x2014;, &#x2014;SO&#x2014;, &#x2014;SO&#x2014;, &#x2014;CONH&#x2014;, &#x2014;COO&#x2014;, &#x2014;(CF)&#x2014; (wherein l is an integer of 1 to 10) and &#x2014;C(CF)&#x2014;; Z is at least one structure selected from the group consisting of a direct bond, &#x2014;O&#x2014; and &#x2014;S&#x2014;; Ris a nitrogen-containing heterocyclic group; q is an integer of 1 to 5; and p is an integer of 0 to 4.

Nitrogenated aromatic compound, process for production of the same, polymer, and proton conductive membrane

A polyarylene having a structural unit shown by the following formula (1) is disclosed. wherein X and Y indicate a divalent organic group or a single bond, Z shows an oxygen atom or a sulfur atom, R represents at least one atom or group selected from the group consisting of a hydrogen atom, a fluorine atom, an alkyl group, and a fluorine-substituted alkyl group, a is an integer of 1 to 20, n is an integer of 1 to 5, and p is an integer of 0 to 10.

Polyarylene, process for producing the same, solid polyelectrolyte, and proton-conductive film

Provided are a sulfonated polymer capable of high hot water resistance even if it has an increased amount of the sulfonic groups introduced therein, and a solid polymer electrolyte containing the sulfonated polymer that has high proton conductivity and excellent generating performance. The sulfonated polymer has repeating units represented by the formula (1'): wherein B's are each independently an oxygen or a sulfur atom, Rto Rmay be the same or different and are selected from a hydrogen atom, a fluorine atom, a nitrile group and an alkyl group, n is an integer of 2 or greater, and Q is a structure represented by the formula (q): wherein A is independently a divalent atom or organic group or a direct bond, and Rto Rmay be the same or different and are selected from a hydrogen atom, a fluorine atom, an alkyl group and an aromatic group.

Sulfonated polymer having nitrile-containing hydrophobic block and solid polymer electrolyte

A catalyst paste composition for making electrodes has a uniform dispersion condition of a carbon black supporting a hydrogen reduction catalyst and is excellent in storage stability. The catalyst paste composition comprises a carbon black supporting a hydrogen reduction catalyst, an electrolyte, a water-soluble sulfonated polymer and a solvent.

Catalyst paste composition for electrode

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

Monomer containing electron-withdrawing group and electron-donative group, and copolymer and proton-conductive membrane comprising same

The method for the production of multilayers comprises: applying a coating solution (I) which comprises a dissolved or dispersed proton-conductive polymer and a solvent (Is) containing water in amounts from 25 to 60 wt % and an organic solvent in amounts from 75 down to 40 wt %, on an electrode, applying a coating solution (II) which comprises a dissolved or dispersed proton-conductive polymer and a solvent (IIs) containing water in amounts from 0 to less than 25 wt % and an organic solvent in amounts above 75 wt %, on the wet first coating without any drying of the first coating; and drying the coatings to form an electrolyte membrane. The methods can provide multilayers capable of satisfactory power generation properties as an electrode structure by forming an electrolyte membrane on an electrode without causing any penetration of electrolyte into the electrode.

Method for the production of multilayers

Provided are a cleaning agent for semiconductor parts, which can decrease a load on the environment and has a high cleaning effect on CMP (chemical mechanical polishing) abrasive particles, metallic impurities and other impurities left on the semiconductor parts such as semiconductor substrates after the CMP, comprising a (co)polymer having at least one kind of group selected from the group consisting of sulfonic acid (salt) groups and carboxylic acid (salt) groups, the cleaning agent further containing a phosphonic acid (salt) group-containing (co)polymer, a phosphonic acid compound or a surfactant as needed; and a method for cleaning semiconductor parts with the above cleaning agent.

Growing community of inventors

Chuo-ku, Japan

Makoto Higami