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:
Aug. 14, 2012
Filed:
Aug. 03, 2010
Masaru Yoshida, Takasaki, JP;
Tetsuya Yamaki, Takasaki, JP;
Masaharu Asano, Takasaki, JP;
Yousuke Morita, Takasaki, JP;
Soji Nishiyama, Ibaraki, JP;
Toshimitsu Tachibana, Ibaraki, JP;
Yozo Nagai, Ibaraki, JP;
Masaru Yoshida, Takasaki, JP;
Tetsuya Yamaki, Takasaki, JP;
Masaharu Asano, Takasaki, JP;
Yousuke Morita, Takasaki, JP;
Soji Nishiyama, Ibaraki, JP;
Toshimitsu Tachibana, Ibaraki, JP;
Yozo Nagai, Ibaraki, JP;
Japan Atomic Energy Agency, Ibaraki, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
Polymer ion-exchange membranes having outstanding electrical conductivity, water retention and oxidation resistance are produced by the steps of uniformly mixing an organic high-molecular weight resin with functional inorganics having the abilities to promote graft polymerization of polymerizable monomers, adsorb water and conduct protons, irradiating the resulting functional inorganics/polymer membrane to initiate graft polymerization or graft copolymerization of polymerizable monomers having functional groups, and then introducing sulfonic acid groups into the graft chains.