Patents by Inventor Astrid John-Müller

Astrid John-Müller 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).

  • Treating powder coating paint waste material for recycling, methods for same, and use thereof
    Patent number: 11603446
    Abstract: A method for recycling powdered paint waste is provided in which, the powdered paint waste is being treated with the aid of a reactant in such a way that its adhesion to surfaces and especially to metal surfaces is reduced or eliminated. The treatment of the powdered paint waste allows the powdered paint waste to be additionally processed under the influence of heat and to use it as a starting material in various recycling processes or in other processes.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: March 14, 2023
    Assignee: TECHNISCHE UNIVERSITAT BERLIN
    Inventors: Konstanze Schäfer, Astrid John-Müller
  • INERTIZATION OF MATERIAL SURFACES BY FUNCTIONALIZED PERFLUORINATED MOLECULES
    Publication number: 20220176405
    Abstract: A method for rendering material surfaces inert is provided. Exemplary surfaces include ceramic, metal or plastic surfaces. The method is accomplished with functionalized perfluorinated compounds for the formation of hyperhydrophobic structures on the surfaces to create inert surfaces. The inert surfaces produced or can be produced in this way have an extremely low surface energy, are resistant to deposits of substances or cells and have a very low coefficient of friction. Practical uses of the inert surfaces are also provided.
    Type: Application
    Filed: July 30, 2019
    Publication date: June 9, 2022
    Applicant: Technische Universität Berlin
    Inventors: Konstanze Schäfer, Astrid John-Müller, Stefanie Maike Krämer
  • TREATING POWDER COATING PAINT WASTE MATERIAL FOR RECYCLING, METHODS FOR SAME, AND USE THEREOF
    Publication number: 20210047492
    Abstract: A method for recycling powdered paint waste is provided in which, the powdered paint waste is being treated with the aid of a reactant in such a way that its adhesion to surfaces and especially to metal surfaces is reduced or eliminated. The treatment of the powdered paint waste allows the powdered paint waste to be additionally processed under the influence of heat and to use it as a starting material in various recycling processes or in other processes.
    Type: Application
    Filed: March 4, 2019
    Publication date: February 18, 2021
    Applicant: Technische Universität Berlin
    Inventors: Konstanze Schäfer, Astrid John-Müller