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:
Sep. 15, 2026
Filed:
Apr. 28, 2021
Daikin Industries, Ltd., Osaka, JP;
Akinori Tani, Osaka, JP;
Junpei Terada, Osaka, JP;
Takaya Yamada, Osaka, JP;
Kae Fujiwara, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
A composite containing a fluorine-containing copolymer, an alkali metal salt, and an ionic liquid. The fluorine-containing copolymer essentially contains: a structural unit represented by formula (1): —[CRR—CRR]— wherein Rto Rare each independently H, F, Cl, CF, or OR, where Ris an organic group having 1 to 8 carbon atoms, provided that at least one of Rto Ris F; and a structural unit represented by formula (2): —[CRR—CRR]— wherein Rto Rare each independently H, F, an alkyl group having 1 to 3 carbon atoms, a functional group containing a heteroatom other than the fluorine atom, or a group containing the functional group. At least one of Rto Ris a functional group containing a heteroatom other than the fluorine atom or a group containing the functional group, and the composite has a volatile content of 0.1 mass % or less.