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:
Nov. 12, 2019
Filed:
Jun. 29, 2016
University of Yamanashi, Kofu-shi, Yamanashi, JP;
Takahata Precision Co., Ltd., Fuefuki-shi, Yamanashi, JP;
Kenji Miyatake, Kofu, JP;
Makoto Uchida, Kofu, JP;
Jyunpei Miyake, Kofu, JP;
Takashi Mochizuki, Kofu, JP;
Hideaki Ono, Kofu, JP;
Manai Shimada, Fuefuki, JP;
Naoki Yokota, Fuefuki, JP;
Natsumi Yoshimura, Fuefuki, JP;
UNIVERSITY OF YAMANASHI, Kofu-shi, JP;
TAKAHATA PRECISION CO., LTD., Fuefuki-shi, JP;
Abstract
The present invention provides a cation exchange resin, and a cation exchange membrane and an electrolyte membrane for a fuel cell using the same. The cation exchange resin comprises a divalent hydrophobic unit; and a divalent hydrophilic unit having divalent hydrophilic groups which are repeated via carbon-carbon bond. The divalent hydrophilic groups being composed of one aromatic ring, or being composed of a plurality of aromatic rings which are bonded to each other via a divalent hydrocarbon group, a divalent silicon-containing group, a divalent nitrogen-containing group, a divalent phosphorus-containing group, a divalent oxygen-containing group, a divalent sulfur-containing group, or carbon-carbon bond, and at least one of the aromatic rings having a cation exchange group; wherein the hydrophobic unit and the hydrophilic unit are bonded to each other via carbon-carbon bond.