Patents by Inventor Dominik Söthje

Dominik Söthje 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).

  • Chemically decomposable epoxide resin system
    Patent number: 10556984
    Abstract: The invention relates to a chemically degradable cured epoxy resin system containing one or more epoxide resins and one or more curing agents, characterized in that the curing agent contains at least one cyanate, with which the epoxy resin reacts to form an epoxy resin polymer containing cyanurates. The cured epoxy resin system can be recycled by chemically decomposing the cured component epoxy resin system by aminolysis with reactive NH2— or other amino groups and/or alcoholysis with mono-, di-, or poly functional alcohols.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: February 11, 2020
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
    Inventors: Christian Dreyer, Monika Bauer, Dominik Söthje
  • Process for recycling materials containing benzoxazine resin, especially fiber composite plastics containing benzoxazine resin
    Patent number: 10501600
    Abstract: The present invention relates to a process for chemically degrading materials containing benzoxazine resin, in particular benzoxazine resins, benzoxazine resin pre-polymers and benzoxazine resin-containing plastics, that enables a high quality recycling process for used up benzoxazine resin-containing materials, in particular the separation of composite materials, such as duromer-based fiber composite plastics containing a benzoxazine resin matrix, and reuse of the benzoxazine-containing materials.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: December 10, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Dominik Soethje, Christian Dreyer, Monika Bauer
  • Chemically Decomposable Epoxide Resin System
    Publication number: 20190177471
    Abstract: The invention relates to a chemically degradable cured epoxy resin system containing one or more epoxide resins and one or more curing agents, characterized in that the curing agent contains at least one cyanate, with which the epoxy resin reacts to form an epoxy resin polymer containing cyanurates. The cured epoxy resin system can be recycled by chemically decomposing the cured component epoxy resin system by aminolysis with reactive NH2— or other amino groups and/or alcoholysis with mono-, di-, or poly functional alcohols.
    Type: Application
    Filed: February 13, 2019
    Publication date: June 13, 2019
    Inventors: Christian Dreyer, Monika Bauer, Dominik Söthje
  • PROCESS FOR RECYCLING MATERIALS CONTAINING BENZOXAZINE RESIN, ESPECIALLY FIBER COMPOSITE PLASTICS CONTAINING BENZOXAZINE RESIN
    Publication number: 20180208737
    Abstract: The invention relates to a process for breaking down materials containing benzoxazine resin that is characterized in that the material containing benzoxazine resin is reacted by aminolysis with an agent containing at least one reactive NH2 and/or NH group. The process enables the material containing benzoxazine resin to be reused; after the breaking-down, volatile products are removed, preferably under reduced pressure and/or at elevated temperature, and the material is mixed with one or more substances that react with the resultant breakdown products to form a polymer network.
    Type: Application
    Filed: July 14, 2016
    Publication date: July 26, 2018
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Dominik Soethje, Christian Dreyer, Monika Bauer
  • Chemically Decomposable Epoxide Resin System
    Publication number: 20160347902
    Abstract: The invention relates to a chemically degradable cured epoxy resin system containing one or more epoxide resins and one or more curing agents, characterized in that the curing agent contains at least one cyanate, with which the epoxy resin reacts to form an epoxy resin polymer containing cyanurates.
    Type: Application
    Filed: January 6, 2015
    Publication date: December 1, 2016
    Inventors: Christian Dreyer, Monika Bauer, Dominik Söthje