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    • 49. 发明申请
    • MOISTURE-PERMEABLE WATERPROOF FABRIC AND PROCESS FOR PRODUCING SAME
    • 水分渗透防水织物及其生产方法
    • US20120132363A1
    • 2012-05-31
    • US13318232
    • 2010-04-28
    • Yoshiharu KatoKatsumi Sakamoto
    • Yoshiharu KatoKatsumi Sakamoto
    • B05D3/10C09J5/00
    • D06M23/10B32B7/12B32B27/12B32B27/40B32B2307/54B32B2307/724B32B2307/7265D06M11/76D06M15/564D06M15/70D06M23/00D06M23/08D06M2200/12D06N3/14D06N2205/24D06N2207/06D06N2207/08D06N2209/123D06N2209/128
    • A moisture-permeable waterproof fabric which has a well-balanced combination of moisture permeability and waterproofing properties and has excellent strength, in particular, tensile strength, is provided without increasing environmental burden. A synthetic-polymer solution comprising a synthetic polymer consisting mainly of a polyurethane, fine inorganic particles, and a polar organic solvent is applied to one surface of a fibrous fabric and then brought into contact with a gaseous phase in which waterdrops having an average particle diameter of 1-30 μm have been evenly dispersed, thereby making the synthetic polymer semisolid. The fabric is then immersed in water to completely solidify the polymer and thereby obtain a moisture-permeable waterproof fabric comprising the fibrous fabric and, united to one surface thereof, a microporous film of a single-layer structure comprising the synthetic polymer consisting mainly of a polyurethane (the number of micropores having a pore diameter of 0.1-5 μm is (5-200)×104/mm2 in a vertical cross-section, and the film has a tensile strength of 3-80 MPa, a moisture permeability as measured by the calcium chloride method of 6,000 g/m2·24 hr or higher or a moisture permeability as measured by the potassium acetate method of 6,000 g/m2·24 hr or higher, and a water pressure resistance of 60 kPa or higher).
    • 具有良好的透湿性和防水性的组合的透湿性防水布,具有优异的强度,特别是拉伸强度,而不会增加环境负担。 将包含主要由聚氨酯,无机微粒和极性有机溶剂组成的合成聚合物的合成聚合物溶液施加到纤维织物的一个表面上,然后与气相接触,其中具有平均粒径 均匀分散,从而制成合成聚合物半固体。 然后将织物浸入水中以完全固化聚合物,从而获得包含纤维织物的透湿性防水织物,并且在其一个表面上与单一结构的微孔膜结合,其包含主要由 聚氨酯(垂直截面中孔径为0.1-5μm的微孔数为(5-20​​0)×104 / mm2),该膜的拉伸强度为3-80MPa,测得的透湿度 通过6,000g / m 2·24小时以上的氯化钙法或通过醋酸钾法测定的透水性为6,000g / m 2·24hr以上,耐水压性为60kPa以上)。