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 above and other properties of the present invention are achieved by a sheet material suitable for use in microfiltration of liquids having a permeability that causes a pressure drop of less than 4 psid at a flow rate of 10 gal/hr, and that has a filtration efficiency of 99% of dust particulates in the size range of 1 to 2 microns at a pressure differential of 30 psid. The invention also relates to a sheet material suitable for use in sterile packaging that has a Gurley Hill Porosity of less than 15 seconds and a spore log reduction value of at least 2.5. <IMAGE> |
申请公布号 |
EP0918890(A2) |
申请公布日期 |
1999.06.02 |
申请号 |
EP19970938642 |
申请日期 |
1997.08.19 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MARSHALL, LARRY, R.;STEIN, PENNY, SIMPSON |
分类号 |
A41D31/00;D01D5/11;D01F6/04;D04H1/54;D04H3/16 |
主分类号 |
A41D31/00 |
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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