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:
Jul. 23, 2013
Filed:
Jul. 02, 2012
Junko Haga, Tokyo, JP;
Yasuhiko Matsuoka, Tokyo, JP;
Junko Haga, Tokyo, JP;
Yasuhiko Matsuoka, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
To provide a method for recovering an anionic fluorinated emulsifier, capable of easily and efficiently recovering an anionic fluorinated emulsifier adsorbed on a basic ion exchange resin. A basic ion exchange resin is brought into contact with a mixture of an aqueous inorganic acid solution and a non-aqueous fluorinated medium, or the basic ion exchange resin is brought into contact with an aqueous inorganic acid solution and then brought into contact with a non-aqueous fluorinated medium, then a phase of the non-aqueous fluorinated medium is recovered, and an acid of the anionic fluorinated emulsifier is recovered from the phase of the non-aqueous fluorinated medium.