- 专利标题: PRODUCTION OF HIGH TEMPERATURE POLYMER BASED PELLETS BY UNDERWATER PELLETIZATION AT ELEVATED WATER TEMPERATURE TO PRODUCE (RIGID) BEAD FOAMS
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申请号: US18041771申请日: 2021-07-15
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公开(公告)号: US20230311365A1公开(公告)日: 2023-10-05
- 发明人: Christian Traßl , Melanie Niepert , Florian Hopf , Denis Holleyn , Mona Ganglauf
- 申请人: Evonik Operations GmbH
- 申请人地址: DE Essen
- 专利权人: Evonik Operations GmbH
- 当前专利权人: Evonik Operations GmbH
- 当前专利权人地址: DE Essen
- 优先权: EP 191446.2 2020.08.18
- 国际申请: PCT/EP2021/069689 2021.07.15
- 进入国家日期: 2023-02-15
- 主分类号: B29B9/06
- IPC分类号: B29B9/06 ; C08J9/18 ; C08J9/00 ; C08J9/12
摘要:
A process can be used for producing (rigid) particle foams from polymer compositions containing at least one polymer having a glass transition temperature according to ISO 11357-2 of at least 180° C. with an underwater pelletization system.
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