Patents by Inventor Stefan Friebel

Stefan Friebel 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).

  • Functionalized Polymers
    Publication number: 20210292453
    Abstract: The invention relates to a functionalized polymer to which at least one Diels-Alder adduct is covalently bonded, said Diels-Alder adduct containing a furan and a maleimide component and the furan or the maleimide component having a functional organyl group the molar mass of which is less than 800 g/mol.
    Type: Application
    Filed: July 10, 2019
    Publication date: September 23, 2021
    Inventors: Steven Eschig, Stefan Friebel, Philipp Schmidt
  • Use of amine-modified siloxanes as protecting agents for coatings and workpieces
    Patent number: 8357431
    Abstract: The present invention relates to the use of certain amine-modified siloxanes, exhibiting at least one molecular unit with an amine-modified radical and at least one molecular unit with a hydrophilic radical, as protecting agents. These protecting agents are suitable for protecting materials, such as wood and other substances based on cellulose and/or lignin, but also other materials, such as plastics, minerals, and metals, from infestation by and spread of harmful microorganisms, such as fungi. The present invention further relates to a method of enhancing surfaces and workpieces, comprising the application and/or incorporation of the protecting agent of the invention to the surfaces and/or into the workpieces.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: January 22, 2013
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Stefan Friebel, Claudia Philipp
  • Composition for a fire-protection agent for materials and fire-protection method
    Patent number: 7828995
    Abstract: The invention relates to novel compositions for fire-protection agents for materials, to a method for treating materials for protection against fire, and to the use of the compositions as fire-protection agents. More precisely, the invention relates to compositions for a fire-protection agent, such as a fire-protection paint, for materials, characterized in that ceramizing additives and volume-builders are contained as ingredients.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: November 9, 2010
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Dirk Kruse, Sebastian Simon, Klaus Menke, Stefan Friebel, Volker Gettwert
  • USE OF AMINE-MODIFIED SILOXANES AS PROTECTING AGENTS FOR COATINGS AND WORKPIECES
    Publication number: 20090304932
    Abstract: The present invention relates to the use of certain amine-modified siloxanes, exhibiting at least one molecular unit with an amine-modified radical and at least one molecular unit with a hydrophilic radical, as protecting agents. These protecting agents are suitable for protecting materials, such as wood and other substances based on cellulose and/or lignin, but also other materials, such as plastics, minerals, and metals, from infestation by and spread of harmful microorganisms, such as fungi. The present invention further relates to a method of enhancing surfaces and workpieces, comprising the application and/or incorporation of the protecting agent of the invention to the surfaces and/or into the workpieces.
    Type: Application
    Filed: May 15, 2007
    Publication date: December 10, 2009
    Inventors: Stefan Friebel, Claudia Philipp
  • Composition for a fire-protection agent for materials and fire-protection method
    Publication number: 20070051271
    Abstract: The invention relates to novel compositions for fire-protection agents for materials, to a method for treating materials for protection against fire, and to the use of the compositions as fire-protection agents. More precisely, the invention relates to compositions for a fire-protection agent, such as a fire-protection paint, for materials, characterized in that ceramizing additives and volume-builders are contained as ingredients.
    Type: Application
    Filed: October 1, 2004
    Publication date: March 8, 2007
    Inventors: Dirk Kruse, Sebastian Simon, Klaus Menke, Stefan Friebel, Volker Gettwert