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:
May. 21, 2013
Filed:
Jun. 06, 2006
Kota Kitamura, Otsu, JP;
Yoshimitsu Sakaguchi, Otsu, JP;
Hiroki Yamaguchi, Otsu, JP;
Masahiro Yamashita, Otsu, JP;
Kousuke Sasai, Otsu, JP;
Kota Kitamura, Otsu, JP;
Yoshimitsu Sakaguchi, Otsu, JP;
Hiroki Yamaguchi, Otsu, JP;
Masahiro Yamashita, Otsu, JP;
Kousuke Sasai, Otsu, JP;
Toyo Boseki Kabushiki Kaisha, Osaka-Shi, JP;
Abstract
The present invention relates to a sulfonic acid group-containing polymer excellent in ion conductivity and durability, a method for producing the same, a resin composition containing the sulfonic acid group-containing polymer, a polymer electrolyte membrane, a polymer electrolyte membrane/electrode assembly, and a fuel cell. The sulfonic acid group-containing polymer of the present invention, in a first embodiment, includes a constituent represented by the following chemical formula 1: wherein X represents hydrogen or a monovalent cation species; Y represents a sulfone group or a ketone group; and n represents an arbitrary integer not less than 2.