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    • 4. 发明申请
    • ANTI-FOG FILM ASSEMBLIES, METHOD OF MANUFACTURE, AND ARTICLES MADE THEREOF
    • 防雾膜组件,制造方法及其制品
    • WO2007040941A1
    • 2007-04-12
    • PCT/US2006/035725
    • 2006-09-13
    • GENERAL ELECTRIC COMPANYBOROWIEC, MatthewLAURIN, Michael, M.VIGNOVIC, David, M.
    • BOROWIEC, MatthewLAURIN, Michael, M.VIGNOVIC, David, M.
    • C08J7/04C08L75/04
    • C08J7/047A47F3/0434C08G18/10C08G2290/00C08J2475/00Y10T428/24802C08G18/48
    • A repositionable and substantially transparent multi-layer anti-fog film assembly (110) comprising a film (130) and an anti-fog layer (120) formed from a polyurethane-film forming composition comprising a surfactant having an isocyanate-reactive moiety and a hydrophobic region and a hydrophilic region effective to provide the layer with anti-fog properties at temperatures that alternate between -23 °C and 65°C. Specifically, those compositions which incorporate into the polyurethane backbone a surfactant having a hydroxyl group and distinct hydrophilic and hydrophobic regions to alter surface energy as well as incorporating hydrophilic groups to increase the hydrophilicity of the polyurethane without substantially compromising its scratch resistance and chemical resistance. Optionally, an anti-fog film assembly (110) comprises an adhesive layer (140). The anti-fog film assembly (110) to be applied with any of a variety of substantially transparent substrates (390) to provide condensation-resistant articles (300) including refrigerator doors (400) and panels (490).
    • 一种可重新定位且基本上透明的多层防雾膜组件(110),其包括由包含具有异氰酸酯反应性部分的表面活性剂和聚氨酯成膜组合物形成的聚氨酯成膜组合物形成的膜(130)和防雾层(120) 疏水区域和亲水区域,有效地在-23℃和65℃之间的温度下提供具有防雾性能的层。 具体而言,将具有羟基和不同的亲水和疏水区域的表面活性剂掺入到聚氨酯主链中的那些组合物,以改变表面能,以及引入亲水基团以增加聚氨酯的亲水性,而不会显着损害其抗划伤性和耐化学性。 任选地,防雾膜组件(110)包括粘合剂层(140)。 防雾膜组件(110)被施加到各种基本上透明的基板(390)中的任何一个以提供包括冰箱门(400)和面板(490)的防冷凝制品(300)。