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.

Date of Patent:
Jul. 05, 2016

Filed:

Aug. 24, 2007
Applicants:

Yasunari Maekawa, Ibaraki, JP;

Shin Hasegawa, Ibaraki, JP;

Yasuyuki Suzuki, Ibaraki, JP;

Inventors:

Yasunari Maekawa, Ibaraki, JP;

Shin Hasegawa, Ibaraki, JP;

Yasuyuki Suzuki, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/10 (2016.01); C08J 5/22 (2006.01); C08F 283/04 (2006.01); C08F 273/00 (2006.01); C08F 283/06 (2006.01); C08F 289/00 (2006.01); C08F 291/00 (2006.01); C08J 7/16 (2006.01); C08L 51/08 (2006.01); H01B 1/12 (2006.01); H01M 8/02 (2016.01);
U.S. Cl.
CPC ...
C08F 283/04 (2013.01); C08F 273/00 (2013.01); C08F 283/06 (2013.01); C08F 289/00 (2013.01); C08F 291/00 (2013.01); C08J 5/2268 (2013.01); C08J 7/16 (2013.01); C08L 51/08 (2013.01); H01B 1/122 (2013.01); H01M 8/0221 (2013.01); H01M 8/103 (2013.01); H01M 8/1025 (2013.01); H01M 8/1027 (2013.01); H01M 8/1032 (2013.01); H01M 8/1072 (2013.01); H01M 8/1088 (2013.01); C08J 2387/00 (2013.01); H01M 2300/0082 (2013.01); Y02E 60/521 (2013.01); Y02P 70/56 (2015.11);
Abstract

Provision of, and a method for production of, a polymer electrolyte membrane, which is characterized by introducing a vinyl monomer into an aromatic polymer membrane substrate, typified by polyether ether ketone, polyether imide, or polysulfone, as graft chains by graft polymerization, and then chemically converting some of the graft chains or/and part of the aromatic polymer chain into sulfonic groups.


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