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:
Jun. 08, 2010
Filed:
Dec. 27, 2007
Applicants:
Barry Jones, Martinez, GA (US);
Joel Swinson, Evans, GA (US);
Paul Mazzell, Aiken, SC (US);
Inventors:
Assignee:
Halocarbon Products Corporation, North Augusta, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for purifying crude fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether (sevoflurane). The crude sevoflurane is repeatedly washed with water under conditions and for a time sufficient to reduce the level of 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) to no more than 200 ppm or no more than 100 ppm.