发明名称 |
Process and apparatus. |
摘要 |
<p>An improved melt spinning process for preparing polymeric filaments, wherein the freshly-extruded filaments enters an enclosed zone that is maintained at superatmospheric pressure by a controlled flow of air at a low positive pressure, and the filaments leave the zone through a constriction, either a venturi or a tube, assisted by the cocurrent flow of such air at a high controlled velocity.</p> |
申请公布号 |
EP0244217(A2) |
申请公布日期 |
1987.11.04 |
申请号 |
EP19870303795 |
申请日期 |
1987.04.29 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
SZE, BENJAMIN CHIATSE;VASSILATOS, GEORGE |
分类号 |
D01F6/00;D01D5/092;D01D5/098;D01D5/14;D01F1/00;D01F6/06;D01F6/60;D01F6/62;(IPC1-7):D01D5/092 |
主分类号 |
D01F6/00 |
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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