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:
Dec. 10, 2024
Filed:
Aug. 20, 2021
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Assignee:
AGC Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 14/26 (2006.01); C08F 8/12 (2006.01); H01M 8/1004 (2016.01); H01M 8/18 (2006.01); H01M 50/414 (2021.01); H01M 50/449 (2021.01); H01M 50/497 (2021.01);
U.S. Cl.
CPC ...
C08F 14/26 (2013.01); C08F 8/12 (2013.01); H01M 8/1004 (2013.01); H01M 8/188 (2013.01); H01M 50/414 (2021.01); H01M 50/449 (2021.01); H01M 50/497 (2021.01);
Abstract
To provide a sulfonic acid group-containing polymer which is capable of forming a low hydrogen permeable membrane, which shows a high ion exchange capacity, and which shows a proper softening temperature. The sulfonic acid group-containing polymer has units u1 represented by the following formula u1, units u2 represented by the following formula u2, and units u3 based on tetrafluoroethylene, in the formula u1, Rand Rare each independently a Cperfluoroalkylene group, and Zis a hydrogen ion, a metal ion, or an ammonium ion,—[CF—CF(CFO—R)]— Formula u2in the formula u2, Ris a perfluoroalkyl group which may contain a SOZgroup and/or an etheric oxygen atom.