发明名称 |
PROCESSO DE SEPARAÇÃO DO SOLVENTE |
摘要 |
<p>A process for stripping chemically bonded spinning solvent from a solution-spun nonwoven web comprising the steps of providing a nonwoven web comprising solvent-laden polymeric fibers having average fiber diameters of less than about 1 micrometer, and transporting the nonwoven web through a solvent stripping zone wherein infrared radiation irradiates the nonwoven web and a solvent stripping fluid impinges on the nonwoven web in order to reduce the solvent concentration of the fibers to less than about 10,000 ppmw.</p> |
申请公布号 |
BRPI0719414(A2) |
申请公布日期 |
2014.02.11 |
申请号 |
BR2007PI19414 |
申请日期 |
2007.12.17 |
申请人 |
E.I DU PONT DE NEMOURS AND COMPANY |
发明人 |
JOSEPH BRIAN HOVANEC;SIMON FRISK |
分类号 |
F26B3/30;F26B13/10;F26B21/14 |
主分类号 |
F26B3/30 |
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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