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:
Feb. 21, 2006
Filed:
Aug. 15, 2003
Kohei Goto, Tokyo, JP;
Mayumi Kakuta, Tokyo, JP;
Fusazumi Masaka, Tokyo, JP;
Kiyonori Kita, Tokyo, JP;
Naoki Mitsuta, Wako, JP;
Masaru Iguchi, Wako, JP;
Hiroshi Soma, Wako, JP;
Nagayuki Kanaoka, Wako, JP;
Kohei Goto, Tokyo, JP;
Mayumi Kakuta, Tokyo, JP;
Fusazumi Masaka, Tokyo, JP;
Kiyonori Kita, Tokyo, JP;
Naoki Mitsuta, Wako, JP;
Masaru Iguchi, Wako, JP;
Hiroshi Soma, Wako, JP;
Nagayuki Kanaoka, Wako, JP;
JSR Corporation, Tokyo, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
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.