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    • 3. 发明授权
    • Low permeability airbag cushions having extremely low silicone-based coating levels
    • 低透气性安全气垫具有极低的硅酮涂层含量
    • US06734124B2
    • 2004-05-11
    • US10335828
    • 2003-01-02
    • Michael D. HurstEdwin Hersey
    • Michael D. HurstEdwin Hersey
    • B32B2702
    • B60R21/235B60R2021/23509B60R2021/23514B60R2021/23519B60R2021/23523Y10T428/1307Y10T428/1314Y10T428/1321Y10T428/1362Y10T442/2139Y10T442/2811Y10T442/2893Y10T442/2902
    • Coated inflatable fabrics and more particularly concerns airbag cushions to which very low add-on amounts of silicone-based coating have been applied and which exhibit extremely low air permeability are provided. The inventive inflatable fabrics are primarily for use in automotive restraint cushions that require low permeability characteristics (such as side curtain airbags). Traditionally, heavy, and thus expensive, coatings of compounds such as neoprene, silicones, and the like, have been utilized to provide such required low permeability. The inventive fabric utilizes an inexpensive, very thin, substantially uniform silicone coating to provide such necessarily low permeability levels. Thus, the inventive coating comprises at least a single layer comprising a majority of silicone-based material, wherein the total thickness of the single layer is at most about 3.0 ounces per square yard as applied to a target fabric surface. The inventive airbag exhibits a characteristically long leak-down rate as compared to other coated airbags.
    • 涂覆的充气织物更具体地涉及已经应用了非常低的添加量的硅氧烷基涂层并且显示出非常低的透气性的安全气囊。 本发明的充气织物主要用于需要低渗透特性的汽车约束垫(例如侧帘安全气囊)中。 传统上,已经使用诸如氯丁橡胶,硅氧烷等化合物的重且因此昂贵的涂层来提供这种所需的低渗透性。 本发明的织物使用廉价的,非常薄的,基本均匀的硅氧烷涂层来提供这种必要的低渗透性水平。 因此,本发明的涂层包括至少一个包含大多数基于硅氧烷的材料的单层,其中当施加到目标织物表面时,单层的总厚度为至多约3.0盎司/平方码。 与其他涂覆的安全气囊相比,本发明的气囊具有特征性的长的泄漏率。
    • 4. 发明授权
    • Coating selective zones of thin webs to change the pervious character thereof
    • 选择薄网的选择区以改变其透视特性
    • US06183847B2
    • 2001-02-06
    • US09182665
    • 1998-10-30
    • Moshe Goldwasser
    • Moshe Goldwasser
    • B32B2702
    • D06B1/14A61F13/00991A61F13/51305A61F2013/51061A61F2013/51066B05C1/12B05C1/165B32B5/26D04H1/425D04H1/4291D04H1/4374D06B11/0066D06M23/16Y10T428/24802Y10T442/659Y10T442/671Y10T442/68Y10T442/681
    • The process and apparatus of the present invention involves treating a well-integrated woven or non-woven web of hydrophobic fibers to make selected areas hydrophilic. It also can be used to make a web of hydrophilic fibers selectively hydrophobic. It uses a plurality of selectively adjustable covers on an applicator roll rotating in a bath of liquid to place the liquid material on selected areas of the web as the web moves over the roll. In a preferred embodiment the web is non-woven and the fibers are hydrophobic in nature, e.g., dry-laid or melt-blown polypropylene or polyethylene fibers or spun-bonded hydrophobic filaments. A woven web made of cotton or other hydrophilic fibers may also be used if the end result is to create partially hydrophobic areas on a hydrophilic web. The areas of liquid are positioned on the web only where desired so as to eliminate the excessive cost of unwanted and unnecessary coating material. If the web is hydrophobic, the liquid makes that area hydrophilic. If the web is hydrophilic, the liquid makes that area hydrophobic. Enhanced liquid containment and transport is obtained when at least one discontinuous fine fiber layer is utilized in the web and the fine fiber layer has a melt-blown content greater than zero but less than 1.5 gsm.
    • 本发明的方法和设备包括处理疏水纤维的良好整合的织造或非织造纤维网,以使选择的区域成为亲水性的。 它也可用于使亲水性纤维的纤维网选择性疏水。 它使用在液体浴中旋转的施加器辊上的多个可选择性调节的盖子,以在纸幅移动到卷筒上时将液体材料放置在幅材的选定区域上。 在优选的实施方案中,纤维网是非织造的,并且纤维在本质上是疏水的,例如干法成网或熔喷的聚丙烯或聚乙烯纤维或纺粘的疏水长丝。 如果最终的结果是在亲水网上产生部分疏水的区域,也可以使用由棉或其它亲水纤维制成的编织网。 液体的区域仅在需要时位于网状物上,以便消除不需要的和不必要的涂层材料的过多成本。 如果纤维网是疏水性的,则液体使得该区域具有亲水性。 如果纤维网是亲水性的,则液体使得该区域是疏水性的。 当在纤维网中使用至少一个不连续的细纤维层时,获得增强的液体容纳和运输,并且细纤维层具有大于零但小于1.5gsm的熔喷成分。