发明名称 |
METHOD AND SPINNING APPARATUS HAVING A MULTIPLE-TEMPERATURE CONTROL ARRANGEMENT THEREIN |
摘要 |
<p>A method and apparatus for spinning filaments of a polymeric material includes a first temperature control arrangement for heating a spin pack to a first predetermined reference temperature greater than the predetermined polymer inlet temperature such that the temperature across a polymer filter holder and the spinneret plate in the spin pack is substantially uniform, whereby the temperature of the filaments emanating from the spinneret plate is substantially uniform. A plate assembly having at least one polymer flow passage therein is disposed between the outlet of the pump and the inlet of the spin pack. A second temperature control arrangement for independently controlling the temperature of the plate assembly to a second predetermined reference temperature is provided. The second predetermined reference temperature is selectable to a temperature above, equal to, or below the predetermined polymer inlet temperature, whereby the temperature of polymer conveyed through the polymer flow passage in the plate assembly is selectably controllable to a predetermined polymer temperature lying within a predetermined range of the second predetermined reference temperature.</p> |
申请公布号 |
EP0961843(A1) |
申请公布日期 |
1999.12.08 |
申请号 |
EP19980903788 |
申请日期 |
1998.01.29 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
KRAUSS, LELAND, LUPER;MCCABE, DUNCAN, DOUGLAS;JOHNSTONE, ROBERT, CARTER;BOGER, ROBERT, CARL |
分类号 |
D01D1/04;D01D1/09;D01D4/00;(IPC1-7):D01D1/09;D01D4/02 |
主分类号 |
D01D1/04 |
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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