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:
Jan. 14, 2014
Filed:
Sep. 22, 2006
Applicants:
Mark B. Shiflett, New Castle, DE (US);
Akimichi Yokozeki, New Castle, JP;
Inventors:
Mark B. Shiflett, New Castle, DE (US);
Akimichi Yokozeki, New Castle, JP;
Assignee:
E I du Pont Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/40 (2006.01); B01D 3/34 (2006.01); B01D 3/36 (2006.01); C07C 17/386 (2006.01); C07C 19/08 (2006.01); C07B 63/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for separating close-boiling and azeotropic components of mixtures, wherein said mixtures contain at least one hydrofluorocarbon compound, using at least one ionic liquid.