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. 19, 2016
Filed:
Jul. 11, 2013
Rhodia Operations, Paris, FR;
Bernard Besson, Miribel-les Echets, FR;
Francois Metz, Irigny, FR;
Olivier Buisine, Saint-Genis-Laval, FR;
RHODIA OPERATIONS, Paris, FR;
Abstract
The present invention relates to a method for preparing an aqueous sulfonimide compound of the formula (Rf—SO)(Rf—SO)NH, wherein Rfand Rfare independently selected from the group comprising: a fluorine atom and groups having 1 to 10 carbon atoms selected from the perfluoroalkyl, fluoroalkyl, fluoroalkenyl and fluoroallyl groups, from a mixture M1 including (Rf—SO)(Rf—SO)NH, RfSOH and/or RfSOH, RfSONHand/or RfSONH, characterized in that said method includes an oxidation step of said mixture M1 using an oxidizing agent in order to obtain a mixture M2 including (Rf—SO)(Rf—SO)NH, RfSOH and/or RfSOH and RfSONHand/or RfSONH.