Pipes for conveying drinking water
    2.
    发明授权
    Pipes for conveying drinking water 失效
    用于输送饮用水的管道

    公开(公告)号:US06413602B2

    公开(公告)日:2002-07-02

    申请号:US09274034

    申请日:1999-03-22

    IPC分类号: B32B108

    摘要: The invention relates to pipes for conveying drinking water, including a main layer made of polyolefin covered on the outside with a layer of a thermoplastic polymer which is impervious to hydrocarbons, such as, for example, polyamides, polyvinylidene fluoride, ethyl/vinyl alcohol copolymers or polyesters. These pipes are particularly useful for pipes buried in soils that may be contaminated with hydrocarbons.

    摘要翻译: 本发明涉及用于输送饮用水的管道,包括由聚烯烃覆盖的聚烯烃制成的主层,所述聚烯烃覆盖在不渗透烃类的热塑性聚合物层上,例如聚酰胺,聚偏二氟乙烯,乙基/乙烯醇共聚物 或聚酯。 这些管道特别适用于埋在可能被碳氢化合物污染的土壤中的管道。