Patents by Inventor Michael Rothmann

Michael Rothmann 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).

  • Patent number: 9644073
    Abstract: A method for producing a polysilane includes a disproportionation reaction of a methylchlorodisilane mixture to form chlorine-containing oligosilane, a substitution reaction of the chlorine atoms contained in the oligosilane by the reaction with a primary amine and a cross-linking reaction of the oligosilanes using a chain former to form polysilanes. The obtained polysilanes are infusible and are very suitable for being spun to form green fibers and processed to form silicon carbide fibers and fiber composites. The method is characterized in that it can be carried out cost-effectively and quickly and with very high yields.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: May 9, 2017
    Assignee: BJS Ceramics GmbH
    Inventors: Norman Grabe, Michael Rothmann
  • Publication number: 20150274897
    Abstract: A method for producing a polysilane includes a disproportionation reaction of a methylchlorodisilane mixture to form chlorine-containing oligosilane, a substitution reaction of the chlorine atoms contained in the oligosilane by the reaction with a primary amine and a cross-linking reaction of the oligosilanes using a chain former to form polysilanes. The obtained polysilanes are infusible and are very suitable for being spun to form green fibers and processed to form silicon carbide fibers and fiber composites. The method is characterized in that it can be carried out cost-effectively and quickly and with very high yields.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 1, 2015
    Inventors: NORMAN GRABE, MICHAEL ROTHMANN
  • Publication number: 20100308308
    Abstract: The present invention relates to an organic light-emitting diode comprising at least one tris(diphenylamino)triazine compound with at least one alkoxy or aryloxy radical, to a light-emitting layer comprising at least one tris(diphenylamino)triazine compound with at least one alkoxy or aryloxy radical, to the use of the aforementioned compounds as a matrix material, hole/exciton blocker material, electron/exciton blocker material, hole injection material, electron injection material, hole conductor material and/or electron conductor material, and to a device selected from the group consisting of stationary visual display units, mobile visual display units and illumination units comprising at least one inventive organic light-emitting diode.
    Type: Application
    Filed: October 15, 2008
    Publication date: December 9, 2010
    Applicant: BASF SE
    Inventors: Evelyn Fuchs, Nicolle Langer, Christian Lennartz, Peter Strohriegl, Michael Rothmann
  • Publication number: 20100258790
    Abstract: The present invention relates to an organic light-emitting diode comprising at least one diphenylaminobis(phenoxy)triazine or at least one bis(diphenylamino)phenoxytriazine compound, to a light-emitting layer comprising at least one diphenylamino-bis(phenoxy)triazine or at least one bis(diphenylamino)phenoxytriazine compound, to the use of the aforementioned compounds as a matrix material, hole/exciton blocker material, electron/exciton blocker material, hole injection material, electron injection material, hole conductor material and/or electron conductor material, and to a device selected from the group consisting of stationary visual display units, mobile visual display units and illumination units comprising at least one inventive organic light-emitting diode.
    Type: Application
    Filed: October 21, 2008
    Publication date: October 14, 2010
    Applicant: BASF SE
    Inventors: Evelyn Fuchs, Nicolle Langer, Christian Lennartz, Peter Strohriegl, Michael Rothmann