发明名称 |
Spinning process for producing high strength, high modulus, low shrinkage yarns |
摘要 |
A process for spinning an organic synthetic melt spinnable polymer includes the steps of: extruding the polymer through a spinneret; passing the filaments from the spinneret through an elongated zone; maintaining the filaments at a temperature above the glass transition temperature of the polymer within the zone; and thereafter converging the filaments. Alternatively, the process includes the steps of: extruding the polymer through a spinneret; providing an elongated zone having a length of at least 5 meters or means for controlling the temperature within said zone from a predetermined maximum to a predetermined minimum; passing the filaments through the zone; and thereafter converging the filaments.
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申请公布号 |
US5186879(A) |
申请公布日期 |
1993.02.16 |
申请号 |
US19910726150 |
申请日期 |
1991.07.01 |
申请人 |
HOECHST CELANESE CORPORATION |
发明人 |
SIMONS, F. HOLMES;GRIFFITH, RONALD L. |
分类号 |
D01D5/092;D01F6/60;D01F6/62 |
主分类号 |
D01D5/092 |
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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