Patents Assigned to Evonik Operations GbmH
  • Polyamide powder for selective sintering methods
    Patent number: 11117837
    Abstract: A polyamide powder for selective absorbing sintering, SAS, or selective inhibition sintering, SIS. The polyamide powder has a solution viscosity to ISO 307 of 1.8 to 2 and a rise in the solution viscosity of 0% to 25% when it is subjected to a temperature 20° C. below its melting temperature under air for 20 hours.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: September 14, 2021
    Assignee: Evonik Operations GbmH
    Inventors: Wolfgang Diekmann, Maik Grebe, Franz-Erich Baumann, Sylvia Monsheimer, Beatrice Küting