发明名称 |
Level control of dry-jet wet spinning process |
摘要 |
In a process for forming fibers by extruding a spinning dope successively through a layer of inert gas and a tube immersed in a coagulating bath, the tension profile of the yarn passing through the tube is regulated by regulating the pressure of the layer inert gas. In this pressurized quench system, the coagulating liquid is maintained at a predetermined level, despite transient changes in liquid input, by passing both pressurized gas and coagulating liquid through a pipe having an opening at the level to be maintained.
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申请公布号 |
US3996321(A) |
申请公布日期 |
1976.12.07 |
申请号 |
US19740527347 |
申请日期 |
1974.11.26 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
WEINBERGER, CHARLES BRIAN |
分类号 |
D01D5/06;D01D5/14;(IPC1-7):D01D5/14 |
主分类号 |
D01D5/06 |
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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