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    • 15. 发明授权
    • Method of making conductive, water and/or alcohol repellent nonwoven
fabric and resulting product
    • 制造导电,水和/或酒精拒斥性无纺布和所得产品的方法
    • US5151321A
    • 1992-09-29
    • US20284
    • 1987-03-02
    • William G. ReevesMichael D. PowersMichael P. MathisLeonard E. Duello
    • William G. ReevesMichael D. PowersMichael P. MathisLeonard E. Duello
    • A61B19/08A61L31/10B05D1/18D06M23/00
    • D06M23/005A61B46/40A61L31/10B05D1/185B82Y30/00B82Y40/00D04H3/005D06M2101/20Y10T442/2164Y10T442/2918Y10T442/68Y10T442/681
    • Improved treatment, composition and method of obtaining a naturally hydrophobic nonwoven web with desired conductivity and/or water repellency, and alcohol repellency. To obtain conductivity, the web is contacted with a composition containing an oxygen or nitrogen rich compound such as ethers, acids or alcohols and especially polymers thereof such as polyethers, and polyacids having an affinity for the substrate. In a further preferred embodiment alcohol repellency is obtained by subsequent or simultaneous contact of the treated web under appropriate pH conditions with a fluorocarbon-containing composition. The result is a conductive material satisfying anti-static requirements for surgical room use and still maintaining desirable water and alcohol repellent properties. Preferred embodiments include treatment with compounds having both moieties as part of the molecule producing a combination of both desired effects. Materials produced in accordance with the invention find applications where ever it is necessary that conductivity eliminate static and that water repellency be achieved. In particular, the materials are useful for surgical applications as gowns, drapes, and the like. Specific examples of treatment compositions include sulfonated polystyrene as a polyacid and ethylene oxide condensates as polyethers, for example. For repellency of fluids having lower surface tension than water, certain fluorocarbons or silicones may be used.
    • 获得具有所需导电性和/或防水性的天然疏水性非织造纤维网的改进的处理,组合物和方法以及拒酒性。 为了获得电导率,将该网与含有富含氧气或富氮化合物如醚,酸或醇的组合物,特别是其聚合物如聚醚和与底物具有亲和性的多元酸接触。 在另一个优选的实施方案中,通过在适当的pH条件下与含碳氟化合物的组合物接触或同时接触经处理的纤维网获得醇排斥性。 其结果是满足手术室使用的抗静电要求的导电材料,并且仍然保持理想的防水和拒油性能。 优选的实施方案包括用具有两个部分作为分子的一部分的化合物进行处理,产生所需效果的组合。 根据本发明生产的材料可以应用于需要导电性消除静电并且达到防水性的必要条件。 特别地,这些材料可用于手术应用,如长袍,帷幕等。 处理组合物的具体实例包括例如作为多元酸的磺化聚苯乙烯和作为聚醚的环氧乙烷缩合物。 对于具有比水低的表面张力的流体的排斥性,可以使用某些碳氟化合物或硅氧烷。