Patents by Inventor Daniel Stephan Van Es

Daniel Stephan Van Es has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of making isoidide
    Patent number: 9340552
    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.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: May 17, 2016
    Assignee: Archer Daniels Midland Company
    Inventors: Erik Hagberg, Kevin Martin, Jerome Le Notre, Daniel Stephan van Es, Jacobus van Haveren, Jan van Ee
  • METHOD OF MAKING ISOIDIDE
    Publication number: 20140371472
    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.
    Type: Application
    Filed: February 19, 2013
    Publication date: December 18, 2014
    Inventors: Erik Hagberg, Kevin Martin, Jerome Le Notre, Daniel Stephan van Es, Jacobus van Haveren, Jan van EE
  • Synthesis of anhydroglycitol esters of improved colour
    Publication number: 20030114635
    Abstract: Diesters of dianhydroglycitols can be prepared by esterification of dianhydroglycitols, anhydroglycitols and/or glycitols with alkylcarboxylic or arylcarboxylic acids in the presence of an acid catalyst, the acid catalyst being a macroporous acid ion exchange resin. If glycitols or monoanhydroglycitols are used as the starting material, the reaction temperature is initially of the order of 120° C. and after the dehydration is approximately 140° C.
    Type: Application
    Filed: October 30, 2002
    Publication date: June 19, 2003
    Inventors: Daniel Stephan Van Es, Augustinus Emmanuel Frissen, Hendrikus Luitjes
  • Use of halogenated sulfonates as a stabilizer booster in PVC
    Publication number: 20030065072
    Abstract: The invention relates to a process to make stabilized PVC wherein use is made of at least one compound of the formula 1
    Type: Application
    Filed: August 6, 2002
    Publication date: April 3, 2003
    Inventors: Daniel Stephan Van Es, Jacco Van Haveren, Augustinus Emmanuel Frissen, Johannes Cornelis Van Der Kolk, Gerard Hubert Frans Schmets, Hendrik Willem Huisman, Heather Blue Harvey