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:
Aug. 24, 2010
Filed:
Dec. 28, 2005
Koichi Murata, Yokohama, JP;
Takashi Okazoe, Yokohama, JP;
Eisuke Murotani, Yokohama, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
The present invention provides a process for producing a fluorinated sulfonyl fluoride useful as e.g. a material for an ion exchange resin, and a novel chemical substance useful as an intermediate in the production process. That is, to provide a process comprising oxidizing Y—S—R-E-Rby means of an oxidizing agent essentially containing a halogen atom to obtain XSO—R-E-R, and in a case that X is a fluorine atom, reacting the compound with fluorine in a liquid phase as it is, and in a case that X is a halogen atom other than a fluorine atom, converting X into a fluorine atom, and then reacting the obtained compound with fluorine in a liquid phase to obtain FSO—R-E-R, and then decomposing it to obtain FSO—R—COF (wherein Ris a bivalent organic group such as an alkylene group, Ris a monovalent organic group such as a perfluoroalkyl group, E is —CHOCO—, Y is a monovalent organic group such as a cyano group or the like, X is a halogen atom, Ris a bivalent organic group having Rfluorinated or the like, Ris the same group as Ror the like, and Eis —CFOCO—).