发明名称 |
Polyamide hollow filaments |
摘要 |
An improved process for preparing polyamide hollow filaments wherein an N,N'-dialkyl polycarbonamide is melt blended with the molten fiber-forming polyamide prior to spinning into filaments. The polycarbonamide substantially decreases the collapsing of the voids which naturally occurs immediately .after spinning and before the filaments are completely cool.
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申请公布号 |
US5370935(A) |
申请公布日期 |
1994.12.06 |
申请号 |
US19940208911 |
申请日期 |
1994.03.11 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
AGARWAL, NIRMAL K.;LONGHI, RAYMOND;RAO, SUNDAR M. |
分类号 |
D01D5/24;D01F6/60;(IPC1-7):D02G3/00;D01D5/253;D01F1/08 |
主分类号 |
D01D5/24 |
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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