发明申请
US20090039537A1 Method for the Production of Expandable Styrol Polymers Having Improved Expandability
审中-公开
具有改进的膨胀性的可膨胀型苯乙烯聚合物的生产方法
- 专利标题： Method for the Production of Expandable Styrol Polymers Having Improved Expandability
- 专利标题（中）： 具有改进的膨胀性的可膨胀型苯乙烯聚合物的生产方法
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申请号： US11632354申请日： 2005-07-08
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公开(公告)号： US20090039537A1公开(公告)日： 2009-02-12
- 发明人: Klaus Hahn , Gerd Ehrmann , Joachim Ruch , Markus Allmendinger , Bernhard Schmied , Jan Holoch
- 申请人： Klaus Hahn , Gerd Ehrmann , Joachim Ruch , Markus Allmendinger , Bernhard Schmied , Jan Holoch
- 申请人地址： DE Ludwigshafen
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DE Ludwigshafen
- 优先权： DE102004034527.9 20040715
- 国际申请： PCT/EP2005/007397 WO 20050708
- 主分类号： B29B9/10
- IPC分类号： B29B9/10
摘要：
A process for producing expandable styrene polymers (EPS) having improved expandability, wherein from 0.1 to 1% by weight, based on the styrene polymer, of a free-radical former is metered into a styrene polymer melt containing blowing agent at a melt temperature in the range from 150 to 220° C. and the melt is extruded through a die plate with subsequent underwater pelletization.