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:
May. 27, 2025
Filed:
Apr. 03, 2020
Applicant:
Daikin Industries, Ltd., Osaka, JP;
Inventors:
Hitoshi Imamura, Osaka, JP;
Takahisa Aoyama, Osaka, JP;
Hayato Tsuda, Osaka, JP;
Tadaharu Isaka, Osaka, JP;
Assignee:
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 214/26 (2006.01); H01M 50/193 (2021.01); H01M 50/42 (2021.01); H01M 50/426 (2021.01);
U.S. Cl.
CPC ...
C08F 214/262 (2013.01); H01M 50/193 (2021.01); H01M 50/426 (2021.01); C08F 2800/20 (2013.01);
Abstract
A member to be compressed for an electrochemical device, including a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, the copolymer having a content of the fluoroalkyl vinyl ether unit based on all the monomer units of the copolymer of 4.3% by mass or more and less than 5.5% by mass, and having a melt flow rate of 10 to 23 g/10 min.