发明名称 |
PROCESS FOR PRODUCING STYRENE RESIN FOAM |
摘要 |
A method of preparing a polystyrenic foam having improved uniformity of properties across its cross-section involves passing the foam immediately after its extrusion through a molding (or shaping) device which is heated or maintained at an elevated temperature rather than being cooled or uninsulated. It is further preferred to post-expand the resultant foam in hot air. |
申请公布号 |
EP0256754(B1) |
申请公布日期 |
1993.01.20 |
申请号 |
EP19870306899 |
申请日期 |
1987.08.04 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
KADOTA, TAKAO;WAKABAYASHI, MASAYUKI |
分类号 |
B29C47/88;B29C35/04;B29C35/08;B29C35/10;B29C44/50;B29C47/00;B29K25/00;B29K105/04;B29L7/00;C08J9/12 |
主分类号 |
B29C47/88 |
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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