Roofing shingle
    66.
    发明授权
    Roofing shingle 失效
    屋顶瓦

    公开(公告)号:US4405680A

    公开(公告)日:1983-09-20

    申请号:US452595

    申请日:1982-12-23

    申请人: David R. Hansen

    发明人: David R. Hansen

    IPC分类号: D06N5/00 E04D5/10 B32B15/00

    摘要: This invention relates to a roofing shingle having improved low temperature flexibility comprising a flexibilized mat prepared by impregnating a glass fiber web with the blend of an unblown asphalt and a monoalkenyl arene-conjugated diene block copolymer, wherein the flexibilized mat is coated with a blend of an air-blown bitumen and a filler.

    摘要翻译: 本发明涉及一种具有改进的低温柔韧性的屋顶瓦,包括通过用未吹制沥青和单烯基芳烃 - 共轭二烯嵌段共聚物的共混物浸渍玻璃纤维网而制备的柔性毡,其中该柔性毡被涂覆有 吹气沥青和填料。