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:
Sep. 16, 2014
Filed:
Jun. 11, 2009
Applicants:
Michiru Kagawa, Settsu, JP;
Aoi Nakazono, Settsu, JP;
Akiyoshi Yamauchi, Settsu, JP;
Meiten Koh, Settsu, JP;
Inventors:
Michiru Kagawa, Settsu, JP;
Aoi Nakazono, Settsu, JP;
Akiyoshi Yamauchi, Settsu, JP;
Meiten Koh, Settsu, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/42 (2006.01); C07C 41/06 (2006.01); C07B 41/04 (2006.01);
U.S. Cl.
CPC ...
C07B 41/04 (2013.01); C07C 41/06 (2013.01);
Abstract
There is provided a method of preparing a high purity fluorine-containing ether which inhibits a side reaction generating an unsaturated bond and assures low cost and simple steps. When preparing the fluorine-containing ether by allowing a fluorine-containing alkyl alcohol to react with a fluorinated olefin in the presence of a basic compound, a reaction is terminated at a stage before a conversion ratio of the fluorine-containing alkyl alcohol reaches 75%.