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:
Apr. 07, 2026
Filed:
Oct. 02, 2020
Sagami Chemical Research Institute, Ayase, JP;
Tosoh Corporation, Shunan, JP;
Tosoh Finechem Corporation, Shunan, JP;
SAGAMI CHEMICAL RESEARCH INSTITUTE, Ayase, JP;
TOSOH CORPORATION, Shunan, JP;
TOSOH FINECHEM CORPORATION, Shunan, JP;
Abstract
Provided is a method of producing perfluoro(2,4-dimethyl-2-fluoroformyl-1,3-dioxolane, the method having a dimer reaction step of reacting a trifluoropyruvic acid fluoride dimer with hexafluoropropylene oxide in an organic solvent in the presence of one or more fluorides selected from the group consisting of potassium fluoride and sodium fluoride to obtain perfluoro(dimethyl-2-oxo-1,4-dioxane).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile