Patents by Inventor Torsten Jahn

Torsten Jahn 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).

  • PMI foams with improved mechanical properties, in particular with increased elongation at tear
    Patent number: 9212269
    Abstract: The invention relates to compounds for producing polymethacrylimide foam materials (PMI foams) with particularly good mechanical properties, in particular with a particularly advantageous elongation at tear. The invention further relates to methods for producing, processing, and using said foam materials. In particular, the invention relates to novel materials, the propensity of which to form tears is clearly reduced in comparison to the prior art. This is tantamount to an elongation at tear that is higher in comparison to the prior art.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 15, 2015
    Assignee: Evonik Roehm GmbH
    Inventors: Kay Bernhard, Mathias Hempler, Werner Geyer, Thomas Barthel, Torsten Jahn
  • Thermostable microporous polymethacrylimide foams
    Patent number: 8722751
    Abstract: The invention relates to compositions for producing polymethacrylimide foams having reduced pore size. The inventive method allows production of a microporous foam with an especially homogeneous pore size distribution without having to use insoluble nucleation agents.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: May 13, 2014
    Assignee: Evonik Rohm GmbH
    Inventors: Jonas Scherble, Werner Geyer, Hermann Seibert, Leonhard Maier, Torsten Jahn, Thomas Barthel
  • PMI FOAMS WITH IMPROVED MECHANICAL PROPERTIES, IN PARTICULAR WITH INCREASED ELONGATION AT TEAR
    Publication number: 20130108817
    Abstract: The invention relates to compounds for producing polymethacrylimide foam materials (PMI foams) with particularly good mechanical properties, in particular with a particularly advantageous elongation at tear. The invention further relates to methods for producing, processing, and using said foam materials. In particular, the invention relates to novel materials, the propensity of which to form tears is clearly reduced in comparison to the prior art. This is tantamount to an elongation at tear that is higher in comparison to the prior art.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 2, 2013
    Applicant: Evonik Roehm GmbH
    Inventors: Kay Bernhard, Mathias Hempler, Werner Geyer, Thomas Barthel, Torsten Jahn
  • Thermostable microporous polymethacrylimide foams
    Publication number: 20070077442
    Abstract: The invention relates to compositions for producing polymethacrylimide foams having reduced pore size.
    Type: Application
    Filed: July 23, 2004
    Publication date: April 5, 2007
    Inventors: Jonas Scherble, Werner Geyer, Hermann Seibert, Leonhard Maier, Torsten Jahn, Thomas Barthel
  • Production of non-planar membranes for electroacoustic convertes
    Publication number: 20040247152
    Abstract: The present invention relates to a process for producing a shaped diaphragm for electroacoustic transducers which comprises a core layer comprising poly(meth)acrylimide foam and at least one covering layer, which is characterized in that
    Type: Application
    Filed: January 23, 2004
    Publication date: December 9, 2004
    Inventors: Horst Greb, Roland Geduldig, Michael Deitrich, Torsten Jahn