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:
Jan. 19, 2010
Filed:
Oct. 16, 2003
Kota Kitamura, Otsu, JP;
Yoshimitsu Sakaguchi, Otsu, JP;
Shigenori Nagahara, Otsu, JP;
Shiro Hamamoto, Otsu, JP;
Naohiko Takimoto, Yokohama, JP;
Hideki Sugihara, Otsu, JP;
Satoshi Takase, Otsu, JP;
Tooru Kitagawa, Otsu, JP;
Miyako Noshiro, Osaka, JP;
Kota Kitamura, Otsu, JP;
Yoshimitsu Sakaguchi, Otsu, JP;
Shigenori Nagahara, Otsu, JP;
Shiro Hamamoto, Otsu, JP;
Naohiko Takimoto, Yokohama, JP;
Hideki Sugihara, Otsu, JP;
Satoshi Takase, Otsu, JP;
Tooru Kitagawa, Otsu, JP;
Miyako Noshiro, Osaka, JP;
Toyo Boseki Kabushiki Kaisha, Osaka-Shi, JP;
Abstract
A composite ion exchange membrane having a high swelling resistance and being superior in mechanical strength and ion conductivity can be provided by means of an composite ion exchange membrane including an ion exchange resin composition and a support membrane having a continuous pore penetrating the support membrane, wherein the support membrane is one which accepts the ion exchange resin composition within the pore, and wherein the ion exchange resin composition is one which contains an ion exchange resin containing, as a main component, an aromatic polyether and/or its derivative, the aromatic polyether being obtained by mixing a compound having a specific structure, an aromatic dihalogenated compound and a bisphenol compound with a carbonate and/or a bicarbonate of an alkali metal and polymerizing the mixture in an organic solvent.