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. 29, 2010
Filed:
Sep. 18, 2008
Masahiro Ito, Yokohama, JP;
Kunio Watanabe, Yokohama, JP;
Takashi Okazoe, Yokohama, JP;
Isamu Kaneko, Yokohama, JP;
Daisuke Shirakawa, Yokohama, JP;
Masahiro Ito, Yokohama, JP;
Kunio Watanabe, Yokohama, JP;
Takashi Okazoe, Yokohama, JP;
Isamu Kaneko, Yokohama, JP;
Daisuke Shirakawa, Yokohama, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
The present invention provides a process whereby fluorine atom-containing sulfonyl fluoride compound(s) useful as e.g. materials for ion-exchange membranes, can be produced efficiently and at low cost without structural limitations while solving the difficulties in production. Namely, the present invention provides a process which comprises reacting XSOR-E(1) with R-E(2) to form XSOR-E-R(3), then reacting (3) with fluorine in a liquid phase to form FSOR-E-R(4), and further, decomposing the compound to obtain FSOR-E(5), wherein Ris a bivalent organic group, Eis a monovalent reactive group, Ris a monovalent organic group, Eis a monovalent reactive group which is reactive with E, E is a bivalent connecting group formed by the reaction of Ewith E, Ris a bivalent organic group formed by the fluorination of R, etc., Ris the same group as R, etc., Eis a bivalent connecting group formed by the fluorination of E, etc., Eis a monovalent group formed by the decomposition of E, and X is a halogen atom.