发明申请
- 专利标题: Open-cell polypropylene particle foams
- 专利标题(中): 开孔聚丙烯颗粒泡沫
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申请号: US10519801申请日: 2003-06-30
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公开(公告)号: US20050236728A1公开(公告)日: 2005-10-27
- 发明人: Christian Maletzko , Franz-Josef Dietzen , Uwe Keppeler , Frank Braun , Klaus Hahn , Isidor de Grave
- 申请人: Christian Maletzko , Franz-Josef Dietzen , Uwe Keppeler , Frank Braun , Klaus Hahn , Isidor de Grave
- 申请人地址: DE Ludwigshafen D-67056
- 专利权人: BASF AKTIENGESELLSCHAFT
- 当前专利权人: BASF AKTIENGESELLSCHAFT
- 当前专利权人地址: DE Ludwigshafen D-67056
- 优先权: DE10230583.8 20020705
- 国际申请: PCT/EP03/06895 WO 20030630
- 主分类号: C08J9/00
- IPC分类号: C08J9/00 ; C08J9/20 ; B29C44/02
摘要:
The invention relates to foam beads of propylene polymers which comprise more than 40% of open cells. They are produced by impregnating propylene polymer minigranules which comprise from 1 to 40% by weight of a cell opener with a volatile blowing agent in aqueous suspension and subsequently decompressing the mixture.
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