| 发明名称 |
Improved yarn extraction process |
| 摘要 |
The salt content of neutralized aromatic polyamide fibers spun from an acid solution downwardly into a spin tube containing the fibers and a coagulating liquid is reduced when a gas is injected into the spin tube 0.25 to 20 cm. downstream from the entrance of the spin tube.
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| 申请公布号 |
US4070431(A) |
申请公布日期 |
1978.01.24 |
| 申请号 |
US19760752913 |
申请日期 |
1976.12.21 |
| 申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
LEWIS, GARY BRETT;MOORE, STEPHEN DONALD |
| 分类号 |
D01D5/06;D01F6/60;(IPC1-7):D01D5/14 |
主分类号 |
D01D5/06 |
| 代理机构 |
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