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:
Apr. 29, 2014
Filed:
Mar. 02, 2012
Tetsuji Hirano, Yamaguchi, JP;
Nobuharu Hisano, Yamaguchi, JP;
Tatsuya Arai, Yamaguchi, JP;
Masayuki Kinouchi, Yamaguchi, JP;
Tetsuji Hirano, Yamaguchi, JP;
Nobuharu Hisano, Yamaguchi, JP;
Tatsuya Arai, Yamaguchi, JP;
Masayuki Kinouchi, Yamaguchi, JP;
Ube Industries, Ltd., Yamaguchi, JP;
Abstract
A method of producing a sulfonated polyarylether block copolymer is provided. The method includes producing a sulfonated polyarylether block copolymer containing a hydrophobic segment having a structural unit represented by formula (5) and a hydrophilic segment having a structural unit having a sulfonic acid groups or derivative thereof incorporated into a structure represented by formula (6). A hydrophilic segment prepolymer having a sulfonic acid group in a potassium salt form and a hydrophobic segment prepolymer are block copolymerized. A proton conductor that includes the sulfonated polyarylether block copolymer is also provided.