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:
Mar. 25, 2014
Filed:
Oct. 18, 2012
Daikin Industries, Ltd., Osaka, JP;
Asahi Kasei E-materials Corporation, Tokyo, JP;
Eiji Honda, Yokohama, JP;
Hideki Iijima, Fuji, JP;
Yasuhiro Hashimoto, Fuji, JP;
Tadashi Ino, Settsu, JP;
Tadaharu Isaka, Settsu, JP;
Masahiro Kondo, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Asahi Kasei E-Materials Corporation, Tokyo, JP;
Abstract
The present invention provides a method for producing a stabilized fluoropolymer which comprises producing the stabilized fluoropolymer by subjecting a treatment target substance containing a sulfonic-acid-derived-group-containing fluoropolymer to a fluorination treatment, wherein the sulfonic-acid-derived-group-containing fluoropolymer is a fluoropolymer containing —SOM (in which M represents H, NRRRRor M; R, R, Rand Rare the same or different and each represents H or an alkyl group containing 1 to 4 carbon atoms; and Mrepresents an L-valent metal), and the treatment target substance has a moisture content of not higher than 500 ppm by mass.