发明名称 |
CORE MATERIAL FOR VACUUM HEAT INSULATION MATERIAL AND VACUUM HEAT INSULATION MATERIAL |
摘要 |
Description is made of an open cell polystyrene resin foam having a content of organic volatile matters of less than 100 ppm. The open cell foam is suitable as a core material for a sound insulating material or a vacuum heat insulating material. The open cell foam can be produced by melt-kneading a polystyrene resin having a content of organic volatile matters of 100 ppm or higher together with water in an extruder, sucking out the organic volatile matters as an azeotrope with water through a vent, injecting a blowing agent and kneading the injected mixture, and extruding the mixture into a lower pressure area to cause the resin to foam. |
申请公布号 |
EP1327656(B1) |
申请公布日期 |
2008.10.29 |
申请号 |
EP20010965660 |
申请日期 |
2001.09.14 |
申请人 |
JSP CORPORATION |
发明人 |
NAITO, MASATO;GOKURAKU, HIROYUKI;IMANARI, DAISUKE;NISHIYAMA, NORITOSHI |
分类号 |
C08J9/14;B29C44/50;B29C47/00;B29C47/76;C08F6/00;C08F6/10;C08L25/06;F16L59/02;F16L59/065 |
主分类号 |
C08J9/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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