The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2013
Filed:
Jul. 26, 2010
Satoru Hommura, Chiyoda-ku, JP;
Susumu Saito, Chiyoda-ku, JP;
Tetsuji Shimohira, Chiyoda-ku, JP;
Atsushi Watakabe, Chiyoda-ku, JP;
Satoru Hommura, Chiyoda-ku, JP;
Susumu Saito, Chiyoda-ku, JP;
Tetsuji Shimohira, Chiyoda-ku, JP;
Atsushi Watakabe, Chiyoda-ku, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
An electrolyte material, which comprises a polymer (H) having ion exchange groups converted from precursor groups in a polymer (F) having repeating units (A) having a precursor group represented by the formula (g1) and repeating units (B) based on a perfluoromonomer having a 5-membered ring, and having a density of at most 2.03 g/cm, the polymer (H) having an ion exchange capacity of from 1.3 to 2.3 meq/g dry resin: wherein Qand Qare a perfluoroalkylene group having an etheric oxygen atom, or the like, and Y is F or the like; the electrolyte material being suitable for a catalyst layer of the membrane/electrode assembly; the membrane/electrode assembly being excellent in power generation characteristics under low or no humidity conditions and under high humidity conditions.