Patents by Inventor Hans-Martin Mugrauer

Hans-Martin Mugrauer 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).

  • MEMBRANE SEPARATION METHOD FOR SEPARATING HIGH BOILER DURING THE PRODUCTION OF 1,3-DIOXOLANE-2-ONES
    Publication number: 20110009645
    Abstract: The present invention relates to a process for the continuous preparation of a 1,3-dioxolan-2-one wherein a discharge from the reaction zone is subjected to a fractionation by means of a semipermeable membrane in order to separate off polymeric by-products.
    Type: Application
    Filed: February 27, 2009
    Publication date: January 13, 2011
    Applicant: BASF SE
    Inventors: Stefan Birnbach, Hans Klink, Hans-Martin Mugrauer, Hartwig Voss
  • Method for separating alkali metal ions from alkoxylates
    Patent number: 6827858
    Abstract: Alkali metal ions are separated off from alkoxylates containing alkali metal ions by a process comprising: a) dilution of the alkali metal-containing alkoxylate with an inert solvent, b) treatment of the alkali metal-containing solution of the alkoxylate with a cationic exchanger in order to obtain a substantially alkali metal-free solution of the alkoxylate, and c) removal of the solvent from the substantially alkali metal-free solution of the alkoxylate in order to obtain a substantially alkali metal-free and substantially solvent-free alkoxylate.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: December 7, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Bader, Hans-Heinrich Bechtolsheimer, Armin Brucker, Toni Dockner, Gabriele Iffland, Hans Klink, Stefan Martin, Jürgen Mohr, Hans-Martin Mugrauer
  • Method for separating alkali metal ions from alkoxylates
    Publication number: 20030150814
    Abstract: Alkali metal ions are separated off from alkoxylates containing alkali metal ions by a process comprising:
    Type: Application
    Filed: November 14, 2002
    Publication date: August 14, 2003
    Inventors: Joachim Bader, Hans-Heinrich Bechtolsheimer, Armin Brucker, Toni Dockner, Gabriele Iffland, Hans Klink, Stefan Martin, Jurgen Mohr, Hans-Martin Mugrauer