Patents by Inventor Jan Lippuner

Jan Lippuner 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).

  • Process to recycle expandable plastic materials and an expandable or expanded plastic material obtainable thereby
    Patent number: 11000979
    Abstract: A process is disclosed to recycle and/or formulate expandable plastic materials using a system (1) comprising: an extruder unit (10), a mixer-heat exchanger unit (20), said process comprising the steps of: melting in the extruder unit (10), cooling in the mixer-heat exchanger unit (20), and controlling the melt pressure by means of a melt pump unit (50), followed by granulation, extrusion, or injection molding, wherein a first expansion agent (81) is not degassed during a melt processing in the system (1) such that it is substantially contained in the granulated expandable plastic material (130) or used to form either the extruded, formed and expanded plastic material (140) or the molded expanded plastic article (150). The present invention also relates to a granulated expandable plastic material (130), an extruded, formed and expanded plastic material (140), and a molded expanded plastic article (150) obtainable by said process.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: May 11, 2021
    Assignee: Sulzer Management AG
    Inventors: Sian Frances Fennessey, Philip Nising, Jörg Weber, Jan Lippuner
  • A Process to Recycle Expandable Plastic Materials and an Expandable or Expanded Plastic Material Obtainable Thereby
    Publication number: 20160375616
    Abstract: A process is disclosed to recycle and/or formulate expandable plastic materials using a system (1) comprising: an extruder unit (10), a mixer-heat exchanger unit (20), said process comprising the steps of: melting in the extruder unit (10), cooling in the mixer-heat exchanger unit (20), and controlling the melt pressure by means of a melt pump unit (50), followed by granulation, extrusion, or injection molding, wherein a first expansion agent (81) is not degassed during a melt processing in the system (1) such that it is substantially contained in the granulated expandable plastic material (130) or used to form either the extruded, formed and expanded plastic material (140) or the molded expanded plastic article (150). The present invention also relates to a granulated expandable plastic material (130), an extruded, formed and expanded plastic material (140), and a molded expanded plastic article (150) obtainable by said process.
    Type: Application
    Filed: November 6, 2014
    Publication date: December 29, 2016
    Applicant: Sulzer Chemtech AG
    Inventors: Sian Frances Fennessey, Philip Nising, Jörg Weber, Jan Lippuner