Patents by Inventor Gerrit Wienhoefer

Gerrit Wienhoefer 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).

  • Processing Base-Catalysed Alkoxylation Products
    Publication number: 20190106369
    Abstract: A method of processing of base-catalysed alkoxylation products using sulphonic acid-containing ion exchangers is described, comprising providing a mixture comprising the alkali-catalysed alkoxylation product to be processed, alcohol having 1 to 4 carbon atoms and water, treating this mixture with a sulphonic acid-containing cation exchanger at >40° C. and removal of the alkoxylation product from the mixture thus treated.
    Type: Application
    Filed: March 6, 2017
    Publication date: April 11, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Frank Schubert, Wilfried Knott, Andrea Villa, Volker Zellmer, Gerrit Wienhoefer