发明名称 |
Flash-spun sheet material |
摘要 |
This invention relates to improved sheets of flash-spun plexifilamentary film-fibrils useful in fluid microfiltration and sterile packaging. The sheet material suitable for use in microfiltration of liquids has a permeability that causes a pressure drop of less than 21 kPa at a water flow rate per unit area of 12.55 ml/min/cm2, and that has a filtration efficiency of 99% of dust particulates in the size range of 1 to 2 microns suspended in a stream of distilled water pumped through the sheet material at a pressure differential of 207 kPa. The sheet material suitable for use in sterile packaging that has a Gurley Hill Porosity of less than 15 seconds and a bacteria spore log reduction value of at least 2.5.
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申请公布号 |
US6034008(A) |
申请公布日期 |
2000.03.07 |
申请号 |
US19970966166 |
申请日期 |
1997.11.07 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
LIM, HYUN SUNG;MARSHALL, LARRY R;NOBBEE, WAZIR;WARREN, JENNIFER MARIE |
分类号 |
D01D5/11;D01F6/04;D04H3/16;(IPC1-7):D04H1/00 |
主分类号 |
D01D5/11 |
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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