公开(公告)号：US20190203009A1

公开(公告)日：2019-07-04

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 ,  C08J9/14 ,  C08J9/12 ,  C08J9/232 ,  C08G69/40

CPC classification number: C08J9/18 ,  B29C44/3453 ,  B29C44/3461 ,  B29K2077/00 ,  B29K2101/12 ,  B29K2995/0063 ,  C08G69/40 ,  C08J9/122 ,  C08J9/141 ,  C08J9/232 ,  C08J2201/032 ,  C08J2201/034 ,  C08J2300/22 ,  C08J2300/26 ,  C08J2377/00 ,  C08J2377/06

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.