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. 17, 2016
Filed:
Feb. 19, 2013
Stichting Dienst Landbouwkundig Onderzoek, PB Wageningen, NL;
Erik Hagberg, Decatur, IL (US);
Kevin Martin, Mt. Zion, IL (US);
Jerome Le Notre, BH Wageningen, NL;
Daniel Stephan van Es, PB Wageningen, NL;
Jacobus van Haveren, PB Wageningen, NL;
Jan van Ee, PB Wageningen, NL;
Archer Daniels Midland Company, Decatur, IL (US);
Abstract
Disclosed is a process for the preparation of isoidide from isosorbide. An aqueous solution of isosorbide is subjected to epimerization in the presence of hydrogen under the influence of a catalyst comprising ruthenium on a support, preferably a carbon support. The process of the invention can be conducted using a relatively low hydrogen pressure, and leads to a desired distribution of epimers, favoring isoidide over isomannide and isosorbide.