Patents by Inventor Gunter Hauber

Gunter Hauber 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).

  • Separators for electrochemical cells comprising polymer particles
    Patent number: 8999602
    Abstract: The present invention relates to separators for electrochemical cells comprising (A) at least one layer comprising (a) crosslinked polyvinylpyrrolidone in the form of particles, (b) at least one binder, and (c) optionally a base structure, where the mass ratio of the crosslinked polyvinylpyrrolidone in the form of particles (a) to the sum of the mass of the binders (b) in the layer (A) has a value in the range from 99.9:0.1 to 50:50. The present invention further relates to the use of inventive separators and to apparatuses, especially electrochemical cells, comprising inventive separators.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: April 7, 2015
    Assignees: BASF SE, Carl Freudenberg KG
    Inventors: Oliver Gronwald, Klaus Leitner, Nicole Janssen, Christoph J. Weber, Michael Roth, Gunter Hauber, Sandra Falusi, Sigrid Geiger, Margitta Berg
  • SEPARATORS FOR ELECTROCHEMICAL CELLS COMPRISING POLYMER PARTICLES
    Publication number: 20130224631
    Abstract: The present invention relates to separators for electrochemical cells comprising (A) at least one layer comprising (a) crosslinked polyvinylpyrrolidone in the form of particles, (b) at least one binder, and (c) optionally a base structure, where the mass ratio of the crosslinked polyvinylpyrrolidone in the form of particles (a) to the sum of the mass of the binders (b) in the layer (A) has a value in the range from 99.9:0.1 to 50:50. The present invention further relates to the use of inventive separators and to apparatuses, especially electrochemical cells, comprising inventive separators.
    Type: Application
    Filed: February 25, 2013
    Publication date: August 29, 2013
    Inventors: Oliver GRONWALD, Klaus Leitner, Nicole Janssen, Christoph J. Weber, Michael Roth, Gunter Hauber, Sandra Falusi, Sigrid Geiger, Margitta Berg