Patents by Inventor Michael Bernd Fricke

Michael Bernd Fricke 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).

  • ACRYLIC ACID, WATER-ABSORBENT POLYMER STRUCTURES BASED ON RENEWABLE RESOURCES AND METHOD FOR PRODUCING SAID STRUCTURES
    Publication number: 20090134357
    Abstract: The present invention relates to a process for production of acrylic acid, comprising at least the following steps: a. dehydrating glycerine to a dehydration product comprising acrolein; b. gas phase oxidation of the dehydration product comprising acrolein to obtain a monomer gas comprising an acrylic acid; c. bringing into contact the monomer gas with a quench means to obtain a quench phase comprising acrylic acid; and d. processing the quench phase comprising acrylic acid to obtain a monomer phase comprising acrylic acid. The present invention may also relate to a process for preparation of polymers by radical polymerization of acrylic acid, the water-absorbing polymers obtainable by this process, water-absorbing polymers based to at least 25 wt % upon partially neutralized acrylic acid, a composite, a device for preparation of acrylic acid, a process for preparation of acrylic acid, and the acrylic acid obtainable by this process.
    Type: Application
    Filed: February 28, 2006
    Publication date: May 28, 2009
    Inventors: Gunther Bub, Jurgen Mosler, Andreas Sabbagh, Franz-Felix Kuppinger, Stefan Nordhoff, Guido Stochniol, Jorg Sauer, Udo Knippenberg, Franck Furno, Gunter Latoschinski, Michael Bernd Fricke, Horst-Werner Zanthoff