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. 11, 2008
Filed:
Nov. 24, 2004
Mayumi Kakuta, Tokyo, JP;
Toshihiro Otsuki, Tokyo, JP;
Nagayuki Kanaoka, Wako, JP;
Masaaki Nanaumi, Wako, JP;
Yoichi Asano, Wako, JP;
Ryoichiro Takahashi, Wako, JP;
Mayumi Kakuta, Tokyo, JP;
Toshihiro Otsuki, Tokyo, JP;
Nagayuki Kanaoka, Wako, JP;
Masaaki Nanaumi, Wako, JP;
Yoichi Asano, Wako, JP;
Ryoichiro Takahashi, Wako, JP;
JSR Corporation, Tokyo, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a proton conductive membrane having capabilities of self-generating water and maintaining water, excellent ion conductivity and excellent effect of inhibiting crossover and usable for solid polymer electrolyte type fuel cells and also provides a proton conductive composition used for preparing the proton conductive membrane. The proton conductive composition comprises 100 parts by weight of a polyarylene having a sulfonic group and 0.01 to 80 parts by weight of at least one metal catalyst selected from the group consisting of platinum, gold, palladium, rhodium, iridium and ruthenium, or comprises 100 parts by weight of a polyarylene having a sulfonic group, 0.01 to 80 parts by weight of the metal catalyst, and 0.01 to 50 parts by weight of metal oxide fine particles and/or fibers in total.