Patents by Inventor Gisela Bengtson

Gisela Bengtson 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
  • IMMOBILIZED HOMOGENEOUS CATALYSTS
    Publication number: 20090029849
    Abstract: A catalyst is produced by bonding a homogeneous catalyst to the surface of a catalyst support. A catalyst may include a catalyst support, a spacer molecule bonded to the catalyst support, and a homogeneous catalyst bonded to the spacer molecule. A catalyzed reaction can be carried out by providing reactants in a first phase and providing a catalyst as described herein in the first phase.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 29, 2009
    Applicant: GKSS-Forschunhszentrum Geesthacht GmbH
    Inventors: Katrin Ebert, Detlev Fritsch, Herbert Plenio, Gisela Bengtson
  • 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
  • Membrane for the separation of liquid mixtures by pervaporation
    Patent number: 5254251
    Abstract: A membrane for the separation of liquid mixtures by pervaporation has two surfaces, a first one representing a feed side and a second one representing a permeate side. The membrane is comprised of a swellable elastomeric polymer material and a reinforcing support embedded essentially parallel to the membrane surfaces in the polymer material. The reinforcing support is a woven mesh arranged asymmetrically so that the reinforcing support is adjacent to the permeate side.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: October 19, 1993
    Assignee: GKSS- Forschungszentrum Geesthacht GmbH
    Inventors: Gisela Bengtson, Karl W. Boddeker