MOISTURE BARRIER FABRIC AND METHODS OF MAKING SAME
    8.
    发明申请
    MOISTURE BARRIER FABRIC AND METHODS OF MAKING SAME 审中-公开
    水分障碍织物及其制备方法

    公开(公告)号:WO2002070810A2

    公开(公告)日:2002-09-12

    申请号:PCT/US2002/000646

    申请日:2002-01-08

    Abstract: The invention relates to a method for preparing a moisture barrier fabric comprising needling the fabric in a direction substantially opposite to the advance direction of the fabric with barbed needles to increase the density of the fabric by entangling the fibers thereof, open-width washing of the needled facecloth fabric with a detergent and sodium carbonate to further increase fabric density by allowing the fabric to neck down or bulk at a substantially random rate, coating one side of the fabric with at least one coating of a latex formulation for use in forming the backcoating of the moisture barrier fabric, comprising a (meth)acrylic acid urethane copolymer having a curing temperature of approximately 250 to 275 °F, and immersing the dry moisture barrier fabric, including the latex backing, into a bath of fluorochemical and a solution containing about 10 to about 15 wt% polyurethane, and removing excess fluorochemical from the treated fabric.

    Abstract translation: 本发明涉及一种防潮织物的制备方法,其包括用与倒钩针相反的织物的方向与织物的前进方向基本相反的方向针刺织物,以通过缠绕其纤维来增加织物的密度, 用洗涤剂和碳酸钠进行针刺的面巾织物,以通过使织物以大致随机的速度颈缩或卷曲来进一步增加织物密度,用至少一层胶乳制剂涂覆织物的一面,用于形成背涂层 的防湿织物,其包含具有约250至275°F的固化温度的(甲基)丙烯酸氨基甲酸酯共聚物,并将包含胶乳背衬的干燥防潮织物浸入含氟化合物的浴中和含有约 10至约15重量%的聚氨酯,并从处理的织物中除去过量的含氟化合物。

    SEMIPERMEABLE COATING FOR BUILDING MATERIALS
    9.
    发明申请
    SEMIPERMEABLE COATING FOR BUILDING MATERIALS 审中-公开
    可开发的建筑材料涂料

    公开(公告)号:WO01056779A1

    公开(公告)日:2001-08-09

    申请号:PCT/US2001/003234

    申请日:2001-02-01

    Abstract: The present invention provides coating materials (14), insulation-containing building material products bearing the materials and methods for applying the coatings to the building material products. The coating materials (14) possess one-way "breathability" c haracteristics with respect to water and aqueous solutions. That is, the coatings are essentially impermeable to liquid water and permeable to water vapor. Vapor from water insulation coated by the material may thus pass through the coating, whereas liquid water is effectively prevented from passing through the coating and entering the insulation.

    Abstract translation: 本发明提供了涂覆材料(14),其含有建筑材料产品的绝缘材料产品,以及将涂料施加到建筑材料产品上的材料和方法。 涂料(14)对水和水溶液具有单向“透气性”特性。 也就是说,涂层基本上是不透液体水和透水蒸气的。 因此,由该材料涂覆的绝缘体的蒸汽可以通过涂层,而液态水被有效地防止穿过涂层并进入绝缘体。

    PROCESS FOR COATING A PERFORATED SUBSTRATE
    10.
    发明申请
    PROCESS FOR COATING A PERFORATED SUBSTRATE 审中-公开
    涂覆执行基材的方法

    公开(公告)号:WO00065143A1

    公开(公告)日:2000-11-02

    申请号:PCT/GB2000/001415

    申请日:2000-04-13

    Abstract: A process for coating a perforated substrate with a gel (e.g. a polymerised acrylate hydrogel or a xerogel) without substantial occlusion of the perforations comprises (i) forming a layer of a liquid pregel mixture, comprising one or more monomers, on a web coated with a silicone, polyethylene, Teflon (R) or other coating having a surface energy less than the surface energy of the liquid pregel mixture; (ii) contacting the perforated substrate with the liquid pregel mixture; and (iii) curing the liquid pregel mixture. Preferably at least part of the curing takes place while the liquid pregel mixture is in contact with both the perforated substrate and the web. The process is especially applicable to the manufacture of attachment tabs for wigs and toupees, wound dressings, patches for transdermal drug delivery, therapeutic patches or biomedical skin electrodes.

    Abstract translation: 使用凝胶(例如,聚合的丙烯酸酯水凝胶或干凝胶)涂覆多孔基材的方法而没有实质上阻塞穿孔的步骤包括(i)在涂覆有纤维网的网上形成一层包含一种或多种单体的液体预凝胶混合物层 硅氧烷,聚乙烯,特氟隆或其表面能低于液体预凝胶混合物的表面能的其他涂层; (ii)使穿孔基材与液体预凝胶混合物接触; 和(iii)固化液体预凝胶混合物。 优选地,当液体预凝胶混合物与多孔基材和网状物接触时,至少部分固化发生。 该方法特别适用于制造用于假发和硬币,伤口敷料,透皮药物递送贴剂,治疗贴剂或生物医学皮肤电极的附接片。

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