Patents by Inventor Gunnar R. Merz

Gunnar R. Merz 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 PREPARING ALKALI CELLULOSE OR A CELLULOSE DERIVATIVE
    Publication number: 20110282050
    Abstract: The throughput of a reactor for producing alkali cellulose and/or a cellulose derivative can be increased by using a granulated cellulose-based material for the preparation of alkali cellulose and/or a cellulose derivative. Cellulose derivatives of essentially the same quality can be produced as in known processes wherein powdered cellulose-based material is used for alkalization and derivatization.
    Type: Application
    Filed: November 30, 2007
    Publication date: November 17, 2011
    Inventors: Gunnar R. Merz, Hans-Peter Schneider, Wolfgang Beer
  • USE OF SPECIAL SCREENS IN THE PREPARATION OF CELLULOSE POWDER
    Publication number: 20090306364
    Abstract: The present invention refers to the use of screens comprising at least two layers of different mesh or pore size in a cellulose powder preparation method as well as to said method, wherein grinding the cellulose pulp and sieving the obtained particles can be carried out on-line.
    Type: Application
    Filed: April 12, 2007
    Publication date: December 10, 2009
    Inventors: Wolfgang Beer, Gunnar R. Merz, Hans-Peter Scheider, Peter Kruse