发明名称 |
Process for the processing of a thermoplastic polycondensation polymer. |
摘要 |
<p>The invention relates to a process for the processing of a thermoplastic polycondensation polymer by supplying the polymer in finely distributed form to a vented extruder in which the polymer is devolatilized and melted. The polymer to be processed is transported below the melting temperature of the polymer over a considerable length of the screw from the inlet of the extruder, with constant evacuation of volatile components by means of a vacuum exhausting device at a vacuum of less than 10 mbar and the polymer is compressed and melted over the remaining length of the screw and then leaves the extruder as an end product or a semimanufacture.</p> |
申请公布号 |
EP0336520(A1) |
申请公布日期 |
1989.10.11 |
申请号 |
EP19890200869 |
申请日期 |
1989.04.06 |
申请人 |
STAMICARBON B.V. |
发明人 |
BURLET, RUDOLF JOHANNES HUBERTUS;LEMMENS, JOZEF MARIA HUBERTUS |
分类号 |
B29C47/00;B29B17/00;B29C47/10;B29C47/38;B29C47/76 |
主分类号 |
B29C47/00 |
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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