发明授权
- 专利标题: Preparation of styrene polymer foam particles
- 专利标题(中): 苯乙烯聚合物泡沫颗粒的制备
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申请号: US437662申请日: 1989-11-17
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公开(公告)号: US4990539A公开(公告)日: 1991-02-05
- 发明人: Klaus Hahn , Uwe Guhr , Roland Gellert , Wolf-Dieter Back
- 申请人: Klaus Hahn , Uwe Guhr , Roland Gellert , Wolf-Dieter Back
- 申请人地址: DEX Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX Ludwigshafen
- 优先权: DEX3842305 19881216
- 主分类号: C08J9/16
- IPC分类号: C08J9/16 ; C08J9/12 ; C08J9/228
摘要:
Styrene polymer foam particles of from 10 to 30 kg/m.sup.3 in density are obtained by foaming styrene polymers which, per kg, contain from 0.7 to 3 moles of blowing agent mixture composed of from 60 to 90 mol % of water and from 10 to 40 mol % of the C.sub.4 - or C.sub.5 -hydrocarbon with the aid of microwaves.
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