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:
Feb. 28, 2006
Filed:
May. 23, 2003
Akinari Sugiyama, Settsu, JP;
Tatsuya Ohtsuka, Settsu, JP;
Kazuyoshi Ichihara, Settsu, JP;
Toshiya Mantani, Settsu, JP;
Akinari Sugiyama, Settsu, JP;
Tatsuya Ohtsuka, Settsu, JP;
Kazuyoshi Ichihara, Settsu, JP;
Toshiya Mantani, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
The present invention provides a process for producing a fluorinated fluorosulfonylalkyl vinyl ether represented by general formula (2):CF═CFO(CFCF(CF)O)CFCFSOF  (2)wherein n is an integer from 0 to 10, comprising fluorinating a perfluorovinylether sulfonate with SFand HF, the perfluorovinylether sulfonate being represented by general formula (1):CF═CFO(CFCF(CF)O)CFCFSOM  (1)wherein M is Ma or Mb, provided that Ma is an alkali metal and Mb is an alkaline earth metal; and n is as defined above. According to the process of the invention, the fluorinated fluorosulfonylalkyl vinyl ether can be produced in high yield in an industrially advantageous manner.