Patents by Inventor Dominik Sothje

Dominik Sothje 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).

  • Method of recycling phenol resin-containing materials, especially phenol resin-based fiber composite materials
    Patent number: 10633507
    Abstract: The present invention relates to a method for degradation of a phenolic resin-containing material, characterized in that the phenolic resin-containing material is subjected to an aminolysis with a reagent containing at least one amino group, as well as a method for synthesis and degradation of a phenolic resin-containing material, characterized in that the phenolic resin-containing material is created by curing the starting components at a temperature of less than 140° C. and is subjected to aminolysis with a reagent containing at least one amino group for the purpose of degradation.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: April 28, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Dominik Sothje, Christian Dreyer, Monika Bauer, Jurgen Lang
  • 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
  • METHOD OF RECYCLING PHENOL RESIN-CONTAINING MATERIALS, ESPECIALLY PHENOL RESIN-BASED FIBRE COMPOSITE MATERIALS
    Publication number: 20190241713
    Abstract: The present invention relates to a method for degradation of a phenolic resin-containing material, characterized in that the phenolic resin-containing material is subjected to an aminolysis with a reagent containing at least one amino group, as well as a method for synthesis and degradation of a phenolic resin-containing material, characterized in that the phenolic resin-containing material is created by curing the starting components at a temperature of less than 140° C. and is subjected to aminolysis with a reagent containing at least one amino group for the purpose of degradation. In addition the inventors have discovered a method for producing a novolak that can be partially or completely degraded by aminolysis, comprising the steps: (a) reacting a phenolic component with an aldehyde in the presence of (i) an acid, (ii) an amine curing agent and (iii) a triglyceride or a triglyceride mixture, and (b) curing the resin obtained according to (a) at a temperature of ?180° C., preferably ?140° C.
    Type: Application
    Filed: November 9, 2016
    Publication date: August 8, 2019
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Dominik Sothje, Christian Dreyer, Monika Bauer, Jurgen Lang
  • 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
  • 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