Patents by Inventor Andreas SCHEDL

Andreas SCHEDL 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).

  • Patent number: 11999686
    Abstract: The invention relates to an improved process for providing purified styrenic monomers, such as styrene, from styrene-containing polymer waste. Styrene-containing waste is depolymerized in a suitable reactor, and the depolymerization products are condensed and separated in a three-step distillation process.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: June 4, 2024
    Assignee: INEOS STYROLUTION GROUP GMBH
    Inventors: Norbert Niessner, Bianca Wilhelmus, Hannes Kerschbaumer, Michiel Verswyvel, Petra Inghelbrecht, Thomas W. Cochran, KyungHo Shon, Mohammed Abboud, Ricardo Cuetos, Hans-Dieter Schwaben, Jens Kathmann, Thad Urquhart, Timothy A. Brown, Tim Wong, Walter De Vet, Hans-Werner Schmidt, Andreas Schedl, Tristan Kolb
  • Publication number: 20230383088
    Abstract: The invention relates to a process for depolymerization of polymer compositions with decomposition of halogen-containing organic compounds, wherein the polymer composition contains at least one styrene-containing polymer and at least one halogen-containing organic compound. The addition of one or more inorganic basic compounds in the depolymerization simultaneously promotes the decomposition of the halogen-containing organic compound and favors the depolymerization.
    Type: Application
    Filed: October 14, 2021
    Publication date: November 30, 2023
    Inventors: Norbert NIESSNER, Bianca WILHELMUS, Hannes KERSCHBAUMER, Hans-Werner SCHMIDT, Tristan KOLB, Andreas SCHEDL
  • Publication number: 20220081372
    Abstract: The invention relates to an improved process for providing purified styrenic monomers, such as styrene, from styrene-containing polymer waste. Styrene-containing waste is depolymerized in a suitable reactor, and the depolymerization products are condensed and separated in a three-step distillation process.
    Type: Application
    Filed: January 7, 2020
    Publication date: March 17, 2022
    Inventors: Norbert NIESSNER, Bianca WILHELMUS, Hannes KERSCHBAUMER, Michiel VERSWYVEL, Petra INGHELBRECHT, Thomas W. COCHRAN, KyungHo SHON, Mohammed ABBOUD, Ricardo CUETOS, Hans-Dieter SCHWABEN, Jens KATHMANN, Thad URQUHART, Timothy A. BROWN, Tim WONG, Walter DE VET, Hans-Werner SCHMIDT, Andreas SCHEDL, Tristan KOLB