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:
Apr. 19, 2016
Filed:
Oct. 04, 2013
Applicant:
Archer Daniels Midland Company, Decatur, IL (US);
Inventors:
Erik Hagberg, Decatur, IL (US);
Erin M. Rockafellow, Decatur, IL (US);
Brennan Smith, Decatur, IL (US);
Kenneth F. Stensrud, Decatur, IL (US);
Assignee:
Archer Daniels Midland Company, Decatur, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 493/04 (2006.01); A61K 31/34 (2006.01);
U.S. Cl.
CPC ...
C07D 493/04 (2013.01); A61K 31/34 (2013.01);
Abstract
A process is provided for making isohexides such as isosorbide with reduced color and/or improved color stability on storage, wherein ionic species in the crude dehydration product mixture are chromatographically substantially separated from the remainder of the crude product mixture, then the remainder is refined to yield a finished product for further use or sale.