Patents by Inventor Erich Seider

Erich Seider 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).

  • Polysilane-polycarbosilane copolymer solutions and oxygen-depleted ceramic moulded bodies prepared therefrom with compositions similar to that of SiC
    Patent number: 8604149
    Abstract: The invention relates to a method for producing a polysilane-polycarbosilane copolymer solution. Said method comprises the preparation of a polysilane, obtained by the disproportionation of a methylchlorodisilane or a mixture of methylchlorodisilanes of formula Si2MenC16-n with a Lewis base as the catalyst, a subsequent thermal cross-linking of the polysilane to form an infusible polysilane-polycarbosilane copolymer that is soluble in inert solvents, in addition to the production of said solution by the dissolution of the polysilane-polycarbosilane copolymer in an inert solvent. The invention also relates to a method for producing oxygen-depleted ceramic fibers and other molded bodies with a composition similar to that of SiC. Said method comprises the spinning of the solution to obtain green fibers according to the dry spinning method and the pyrolysis of the dried green fibers in an inert gas atmosphere or a reductive atmosphere.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: December 10, 2013
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Juergen Clade, Erich Seider, Dieter Sporn, Erika Brendler, Thomas Lange, Gerhard Roewer, Dorit Mainhold
  • Stable sediment dispersion, method for production and use thereof
    Patent number: 8318041
    Abstract: The present invention relates to a stable sediment dispersion which can be used above all as electrorheological (ERF) and/or magnetorheological fluid (MRF), a method for production thereof and also use thereof.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: November 27, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Jochen Uebe, Erich Seider, Silvia Gaul, Holger Bose
  • STABLE SEDIMENT DISPERSION, METHOD FOR PRODUCTION AND USE THEREOF
    Publication number: 20090250652
    Abstract: The present invention relates to a stable sediment dispersion which can be used above all as electrorheological (ERF) and/or magnetorheological fluid (MRF), a method for production thereof and also use thereof.
    Type: Application
    Filed: April 20, 2007
    Publication date: October 8, 2009
    Applicant: FRAUNHOFER-GESELLSCHAFT zur Forderung der Angewandten Forschung e.V
    Inventors: Jochen Uebe, Erich Seider, Silvia Gaul, Holger Böse
  • Polysilane-Polycarbosilane Copolymer Solutions and Oxygen-Depleted Ceramic Moulded Bodies Prepared Therefrom with Compositions Similar to that of Sic
    Publication number: 20080207430
    Abstract: The present invention pertains to a method for producing a polysilane-polycarbosilane copolymer solution, which comprises the preparation of a polysilane, obtained by the disproportionation of a methylchlorodisilane or a mixture of methylchlorodisilanes of the formula Si2MenCl6-n with a Lewis base as the catalyst, a subsequent thermal crosslinking of the polysilane to form an infusible polysilane-polycarbosilane copolymer that is soluble in inert solvents, as well as the production of said solution by the dissolution of the polysilane-polycarbosilane copolymer in an inert solvent. In addition, the present invention also pertains to a method for producing oxygen-depleted ceramic fibers and other molded bodies having a composition similar to that of SiC.
    Type: Application
    Filed: May 2, 2005
    Publication date: August 28, 2008
    Inventors: Jurgen Clade, Erich Seider, Dieter Sporn, Erika Brendler, Thomas Lange, Gerhard Roewer, Dorit Meinhold