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:
Oct. 27, 2015
Filed:
Mar. 09, 2010
Applicants:
Kazuyoshi Ichihara, Osaka, JP;
Hideki Nakaya, Osaka, JP;
Mai Hirai, Osaka, JP;
Yasuhide Senba, Osaka, JP;
Inventors:
Kazuyoshi Ichihara, Osaka, JP;
Hideki Nakaya, Osaka, JP;
Mai Hirai, Osaka, JP;
Yasuhide Senba, Osaka, JP;
Assignee:
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 303/08 (2006.01); C07D 301/03 (2006.01); C07D 303/48 (2006.01);
U.S. Cl.
CPC ...
C07D 301/03 (2013.01); C07D 303/08 (2013.01); C07D 303/48 (2013.01);
Abstract
The present invention provides a novel method for producing hexafluoropropylene oxide, which can attain a high HFPO selectivity without using a phase transfer catalyst. Hexafluoropropylene (HFP), a water-soluble and aprotic organic solvent, and an aqueous solution of an oxidizing agent are introduced into a small space, thereby bringing into contact with each other and reacting hexafluoropropylene with the oxidizing agent to obtain hexafluoropropylene oxide (HFPO).