Patents by Inventor Heinz-Dieter Ebert

Heinz-Dieter Ebert 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).

  • Ballast and process for the production of ballast
    Patent number: 8715778
    Abstract: The present invention relates to ballast which have a high stability and a long service life and to a process for the production of ballast. These ballast are suitable for railway track laying and road construction and dike systems used for example in costal protection. These ballast comprise ballast stones and polyurethane foams based on a reaction mixture of selected polyisocyanates and selected compounds with isocyanate-reactive groups.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: May 6, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Andreas Hoffmann, Heinz-Dieter Ebert, Bert Klesczewski
  • Gel masses based on polyurethane, their production and use
    Patent number: 8232364
    Abstract: The present invention relates to improved gel masses prepared from a reaction mixture of NCO prepolymers and selected compounds containing groups reactive towards isocyanate groups. This invention is also directed to a process for the production of these gel masses and to the production of pressure-distributing elements comprising these gel masses.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: July 31, 2012
    Assignee: TechnoGel GmbH
    Inventors: Andreas Hoffman, Heinz-Dieter Ebert, Matteo Mason
  • Ballast and process for the production of ballast
    Publication number: 20070172590
    Abstract: The present invention relates to ballast which have a high stability and a long service life and to a process for the production of ballast. These ballast are suitable for railway track laying and road construction and dike systems used for example in costal protection. These ballast comprise ballast stones and polyurethane foams based on a reaction mixture of selected polyisocyanates and selected compounds with isocyanate-reactive groups.
    Type: Application
    Filed: January 17, 2007
    Publication date: July 26, 2007
    Inventors: Andreas Hoffmann, Heinz-Dieter Ebert, Bert Klesczewski
  • Gel masses based on polyurethane, their production and use
    Publication number: 20070066788
    Abstract: The present invention relates to improved gel masses prepared from a reaction mixture of NCO prepolymers and selected compounds containing groups reactive towards isocyanate groups. This invention is also directed to a process for the production of these gel masses and to the production of pressure-distributing elements comprising these gel masses.
    Type: Application
    Filed: September 7, 2006
    Publication date: March 22, 2007
    Inventors: Andreas Hoffmann, Heinz-Dieter Ebert
  • Gel compounds, their production and use
    Patent number: 5362834
    Abstract: Improved gel compounds based on reaction products of polyols and polyisocyanates are characterized in that the polyol component consists of a mixture of a) one or more polyols having hydroxyl values below 112 and b) one or more polyols having hydroxyl values of 112 to 600 and in that the isocyanate index of the reaction mixture is in the range from 15 to 70. They may be used as pressure-distributing elements.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: November 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dietmar Schapel, Heinz-Dieter Ebert, Hartwig Grammes