Patents by Inventor Petra Merten

Petra Merten 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).

  • Process for producing a polymer membrane, and polymer membrane
    Patent number: 8276764
    Abstract: The invention relates to a process for producing a polymer membrane, the polymer membrane being produced from a solution, in particular a casting solution, comprising at least one first polymer. The invention further relates to a polymer membrane. The process of the invention is distinguished by the fact that a water-soluble second polymer and/or oligomer that forms phases in the solution is part of the solution. The polymer membrane of the invention, preferably produced by the process of the invention, has an oil flow rate, in particular of a refined edible oil, of greater than 200 l/m2 h bar at 60° C.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: October 2, 2012
    Assignee: Helmholtz-Zentrum Geesthacht Zentrum fur Material-und Kustenforschung GmbH
    Inventors: Detlev Fritsch, Gisela Bengtson, Katrin Ebert, Joachim Koll, Petra Merten
  • Process for producing a polymer membrane, and polymer membrane
    Publication number: 20080004457
    Abstract: The invention relates to a process for producing a polymer membrane, the polymer membrane being produced from a solution, in particular a casting solution, comprising at least one first polymer. The invention further relates to a polymer membrane. The process of the invention is distinguished by the fact that a water-soluble second polymer and/or oligomer that forms phases in the solution is part of the solution. The polymer membrane of the invention, preferably produced by the process of the invention, has an oil flow rate, in particular of a refined edible oil, of greater than 200 l/m2 h bar at 60° c.
    Type: Application
    Filed: September 6, 2007
    Publication date: January 3, 2008
    Applicant: GKSS-Forschungszentrum Geesthacht GmbH
    Inventors: Detlev Fritsch, Gisela Bengtson, Katrin Ebert, Joachim Koll, Petra Merten