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    • 68. 发明授权
    • Roofing materials having engineered coatings
    • 具有工程涂层的屋顶材料
    • US08211528B2
    • 2012-07-03
    • US12431218
    • 2009-04-28
    • David P. AschenbeckCarla A. MillerDavid B. Ollett
    • David P. AschenbeckCarla A. MillerDavid B. Ollett
    • B32B11/02D06N5/00E04D5/12
    • E04D5/12D06N5/00E04D5/02Y02A30/255Y02B80/34Y10T428/24372Y10T428/2438Y10T428/24413Y10T428/24421Y10T428/2443Y10T428/249921Y10T428/269Y10T442/2164Y10T442/2221Y10T442/2992
    • An asphalt-based roofing material includes a coating having a top portion containing a mixture of asphalt and igneous and/or metamorphic rock particles, while the mat portion of the coating contains a mixture of asphalt and a filler which contains less than 10% igneous and/or metamorphic rock particles. In other embodiments, the top portion but not the bottom portion of the coating meets or exceeds a pliability standard, passes a weathering performance test, or has a high solar reflectance. In another embodiment relating to a laminated roofing material, the top portion but not the bottom portion has viscoelastic properties effective to prevent the coating from sticking to an adjacent shingle in a bundle. The invention also relates to a continuous process of applying first and second coatings to a mat for manufacturing a roofing material. In a first coating operation, a first asphalt-based coating is continuously applied to a first surface of the mat so that the first coating saturates the mat and forms a layer on the first surface. In a second coating operation, a second asphalt-based coating is continuously applied to a second surface of the mat so that the second coating forms a layer on the second surface. The second coating has different properties from the first coating.
    • 沥青基屋顶材料包括具有顶部部分的涂层,该顶部含有沥青和火成岩和/或变质岩石颗粒的混合物,而涂层的垫部分含有沥青和填料的混合物,其中含有少于10%的火成岩和 /或变质岩石颗粒。 在其它实施方案中,涂层的顶部而不是底部满足或超过柔韧性标准,通过耐候性能测试或具有高的太阳反射率。 在涉及层压屋顶材料的另一个实施例中,顶部部分而不是底部部分具有有效的粘弹性,以防止涂层粘附到相邻的瓦楞板中。 本发明还涉及将第一和第二涂层施加到用于制造屋顶材料的垫的连续方法。 在第一涂覆操作中,将第一沥青基涂层连续施加到垫的第一表面,使得第一涂层使垫饱和并在第一表面上形成层。 在第二涂覆操作中,将第二沥青基涂层连续地施加到垫的第二表面,使得第二涂层在第二表面上形成层。 第二涂层具有与第一涂层不同的性质。