Patents by Inventor Rendert Wiersma

Rendert Wiersma 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).

  • Publication number: 20050192363
    Abstract: Process for the preparation of an alkoxylated alcohol composition comprising one or more alkoxylated alcohols wherein the process comprises the steps of: (a) reacting carbon monoxide with hydrogen under Fischer-Tropsch reaction conditions in the presence of a Fischer-Tropsch catalyst; (b) separating from the product of step (a) at least one hydrocarbon fraction comprising paraffins having from 9 to 17 carbon atoms and olefins having from 9 to 17 carbon atoms, the hydrocarbon fraction additionally comprising at least a portion of alcohols; (c) contacting one or more of the hydrocarbon fractions obtained in step (b) with an alkylene oxide; and (d) recovering an alkoxylated alcohol composition from the reaction product of step (c).
    Type: Application
    Filed: December 9, 2004
    Publication date: September 1, 2005
    Inventors: Hendrik Dirkzwager, Laurent Fenouil, Rendert Wiersma
  • Publication number: 20050014979
    Abstract: A process for preparing an alkoxylate composition by the reaction of an active hydrogen containing organic compound with an alkylene oxide using a double metal cyanide complex catalyst.
    Type: Application
    Filed: June 29, 2004
    Publication date: January 20, 2005
    Inventors: Michiel Eleveld, Jan Meurs, Rendert Wiersma, Arie Zon, Kirk Raney