发明名称 |
PROCESS FOR MANUFACTURING HIGHLY PRESSURE-RESISTANT SLABS OF CELLULAR MATERIAL FROM STYRENE POLYMERS |
摘要 |
<p>PCT No. PCT/EP93/01320 Sec. 371 Date Nov. 22, 1994 Sec. 102(e) Date Nov. 22, 1994 PCT Filed May 26, 1993 PCT Pub. No. WO93/24560 PCT Pub. Date Dec. 9, 1993.Process for the production of foam boards having a minimum thickness of 20 mm and a cross-sectional area of at least 50 cm2 by extruding a mixture of the styrene polymer, from 1 to 10% by weight, based on the styrene polymer, of a blowing agent, wherein the blowing agent contains at least one ether from the group consisting of dimethyl ether, methyl ethyl ether and methyl vinyl ether.</p> |
申请公布号 |
EP0643739(B1) |
申请公布日期 |
1997.04.02 |
申请号 |
EP19930912794 |
申请日期 |
1993.05.26 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
ALICKE, GERHARD;WEILBACHER, MANFRED;WOLFF, BERNARDO;HEINEN, HARTMUT;DIETZEN, FRANZ-JOSEF;WEBER, REINHOLD;HAHN, MANFRED |
分类号 |
C08J9/12;C08J9/14;(IPC1-7):C08J9/14 |
主分类号 |
C08J9/12 |
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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