Patents Assigned to Gefinex Polymerschaeume GmbH
  • Method of producing a foamed granulate
    Patent number: 6315931
    Abstract: A method for producing a foamed granulate, wherein a thermoplastic synthetic material is placed in an extruder, the synthetic material is melted, a pressurized expanding agent is fed through one or several injection nozzles, the molten material enriched with the expanding medium is foamed as it exits through a perforated plate arranged at the outlet of the extruder and is granulated by a cutting device arranged behind the perforated plate. Also disclosed is a device for implementing the method and the foamed granulate.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: November 13, 2001
    Assignee: Gefinex Polymerschaeume GmbH
    Inventors: Juergen Bruning, Otto Deseke, Joachim Meyke