Patents by Inventor Anja Poschen

Anja Poschen 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).

  • 2-(3-(AMINOMETHYL)-3,5,5-TRIMETHYLCYCLOHEXYL)PROPANE-1,3-DIAMINE, A PROCESS FOR ITS PRODUCTION AND USE
    Publication number: 20190106377
    Abstract: A compound of the structural formula 1 Also disclosed is a process for producing 2-(3-(aminomethyl)-3,5,5-trimethylcyclohexyl)propane-1,3-diamine by A) reacting isophorone nitrile and malononitrile to afford the intermediate 2-(3-cyano-3,5,5-trimethylcyclohexylidene) malononitrile, and B) hydrogenating 2-(3-cyano-3,5,5-trimethylcyclohexylidene)malononitrile in the presence of at least one catalyst. In another embodiment, the hydrogenation in step B) of the process is performed at 20-120° C. and at 20-300 bar.
    Type: Application
    Filed: November 1, 2018
    Publication date: April 11, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Alexander Martin RÜFER, Anne RITTSTEIGER, Jörg-Joachim NITZ, Stephan KOHLSTRUK, Martina ORTELT, Dirk FUCHSMANN, Michael DEMMING, Christine STEMMER, Denise OTT, Anja Poschen
  • 2-(3-(aminomethyl)-3,5,5-trimethylcyclohexyl)propane-1,3-diamine, a process for its production and use
    Patent number: 10252980
    Abstract: A compound of the structural formula 1 as a hardener in epoxy resin composition.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: April 9, 2019
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Alexander Martin Rüfer, Anja Poschen, Anne Rittsteiger, Jörg-Joachim Nitz, Stephan Kohlstruk, Martina Ortelt, Dirk Fuchsmann, Michael Demming, Christine Stemmer, Denise Ott