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    • 3. 发明授权
    • Method of forming a treated fiber and a treated fiber formed therefrom
    • 形成经处理的纤维和由其形成的处理过的纤维的方法
    • US06350399B1
    • 2002-02-26
    • US09471056
    • 1999-12-22
    • Michael Charles CookDebra Jean McDowallDana Elizabeth StanoMichael David PowersSamuel Edward Marmon
    • Michael Charles CookDebra Jean McDowallDana Elizabeth StanoMichael David PowersSamuel Edward Marmon
    • D01D508
    • D01D1/065D01F1/10D01F6/04D01F6/06
    • The present disclosure is directed to a method of forming a treated fiber. A molten polymer is delivered to a fiber spinning assembly adapted to form and distribute polymer streams. At least one treatment is applied in a liquid state to at least one region on the surface of at least one molten polymer stream within the fiber spinning assembly. A substantial portion of the treatment remains on the surface of the resulting fiber within the treated region. One or more regions on the surface of the molten polymer may be treated with one or multiple treatments. The degree of coverage may vary from little coverage to complete coverage of the fiber surface. The treated regions may be in contact with one another or may be separate and distinct. A nonwoven web may be produced with selectively treated fiber regions by designing one or more fiber spinning assemblies to treat selected fibers or to apply multiple treatments. The regions of the nonwoven web may vary in treatment type, amount, or degree of coverage.
    • 本公开涉及一种形成经处理的纤维的方法。 将熔融的聚合物输送到适于形成和分布聚合物流的纤维纺丝组件。 至少一种处理以液态施加到纤维纺丝组件内至少一个熔融聚合物流的表面上的至少一个区域。 处理区域内的所得纤维的表面上仍存在很大部分的处理。 可以用一次或多次处理来处理熔融聚合物表面上的一个或多个区域。 覆盖程度可以从纤维表面的覆盖范围到完全覆盖范围变化。 经处理的区域可以彼此接触或者可以是分开的和不同的。 可以通过设计一个或多个纤维纺丝组件来处理所选择的纤维或施加多次处理,可以通过选择性处理的纤维区域来生产非织造纤维网。 非织造纤维网的区域可以在治疗类型,数量或覆盖程度上变化。
    • 9. 发明授权
    • Sterilization wrap, applications therefor, and method of sterilizing
    • 灭菌包装,其应用和灭菌方法
    • US06537932B1
    • 2003-03-25
    • US09168281
    • 1998-10-08
    • Steven Wayne FittingMichael David PowersRoger Bradshaw Quincy, III
    • Steven Wayne FittingMichael David PowersRoger Bradshaw Quincy, III
    • B32B2702
    • A61L2/208A61L2/14A61L2/26A61L2202/181A61L2202/24Y10T442/2418Y10T442/2451
    • A method of preparing a sterilized nonwoven web, which method includes providing a nonwoven web; coating the nonwoven web with from about 0.005 to about 3 percent by weight, based on the weight of the web, of an antistatic agent; and exposing the coated nonwoven web to an oxidizing gas plasma. The antistatic agent is adapted to be free of a malodor after exposure of the coated nonwoven web to the oxidizing gas plasma. The antistatic agent may be further adapted to provide a sterilized nonwoven web having a hydrohead value as measured by Method 5514 of Federal Test Method Standard No. 191A which is at least 50 percent of the hydrohead value of the coated nonwoven web before exposure to the oxidizing gas plasma. The antistatic agent also may be adapted to provide a sterilized nonwoven web having a surface resistivity in ohms which is lower than the surface resistivity in ohms of the coated nonwoven web before exposure of the coated nonwoven web to the oxidizing gas plasma. The antistatic agent may be an alkali metal or ammonium salt of either a mono- or di-C3-alkyl phosphate in which the C3-alkyl moiety is an alkyl group containing three carbon atoms optionally substituted with hydroxy groups or a &bgr;-carbon substituted alkyl phosphate, a di(&bgr;-carbon substituted alkyl) phosphate, or a mixture of two or more of the foregoing. The invention also provides a fibrous sheet-like material, such as a barrier fabric, a sterilization wrap, a surgical garment, and medical procedure packs.
    • 一种制备无菌非织造纤维网的方法,该方法包括提供非织造纤维网; 基于纤维网的重量,以约0.005至约3重量%的抗静电剂涂布非织造纤维网; 并将涂覆的非织造纤维网暴露于氧化性气体等离子体。 抗静电剂适于在将涂布的非织造纤维网暴露于氧化气体等离子体之后没有恶臭。 抗静电剂可以进一步适于提供具有通过联邦测试方法标准号191A的方法5514测量的无水头骨值的无菌非织造纤维网,其是在暴露于氧化之前涂覆的非织造纤维网的水压头值的至少50% 气体等离子体 抗静电剂还可以适于提供具有欧姆表面电阻率的无菌非织造纤维网,其低于在涂布的非织造纤维网暴露于氧化性气体等离子体之前的涂布的非织造纤维网的表面电阻率。 抗静电剂可以是其中C3-烷基部分是任选被羟基取代的三个碳原子的烷基或β-碳取代烷基的单 - 或二-C3-烷基磷酸酯的碱金属或铵盐 磷酸酯,二(β-碳取代烷基)磷酸酯,或上述两种或更多种的混合物。 本发明还提供了一种纤维片状材料,例如阻隔织物,灭菌包装,外科服装和医疗手术包装。