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:
May. 05, 2009
Filed:
Dec. 21, 2005
Applicants:
F. Glenn Gallagher, Wilmington, DE (US);
Robert Dicosimo, Chadds Ford, PA (US);
Inventors:
F. Glenn Gallagher, Wilmington, DE (US);
Robert DiCosimo, Chadds Ford, PA (US);
Assignee:
E.I. DuPont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/00 (2006.01); C07C 69/66 (2006.01); C07C 69/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for obtaining a carboxylic acid ester from an aqueous solution of the corresponding carboxylic acid ammonium salt using alcoholysis. The recovered carboxylic acid ester may be subsequently hydrolyzed to produce the corresponding carboxylic acid.