公开(公告)号：US12234338B2

公开(公告)日：2025-02-25

申请号：US16311888

申请日：2017-06-21

Applicant: BASF SE

Inventor： Uwe Keppeler ,  Juergen Bartl ,  Juergen Ahlers ,  Christian Daeschlein ,  Peter Gutmann ,  Frank Prissok

IPC: C08J9/18 ,  B29C44/34 ,  B29K77/00 ,  B29K101/12 ,  C08G69/40 ,  C08J9/12 ,  C08J9/14 ,  C08J9/232

Abstract: A process for producing foam particles composed of thermoplastic elastomers having polyamide segments, comprising the steps: (a) production of a suspension of pellets of the thermoplastic elastomer in a suspension medium, (b) addition of a blowing agent, (c) impregnation of the pellets with the blowing agent by heating of the suspension in a pressure vessel to an impregnation temperature IMT at an impregnation pressure IMP, depressurization of the suspension by emptying of the pressure vessel via a depressurization device and work-up of the foam particles obtained, and also foam particles obtainable by the process.