Variable vapor barrier for humidity Control
    2.
    发明申请
    Variable vapor barrier for humidity Control 有权
    湿度可变蒸汽屏障控制

    公开(公告)号:US20080160280A1

    公开(公告)日:2008-07-03

    申请号:US11953700

    申请日:2007-12-10

    Abstract: Disclosed is a multilayer film or sheet, which comprises at least one vapor barrier layer and at least one vapor transmission-adjusting layer wherein the vapor transmission-adjusting layer comprises a neutralized acid copolymer or ionomer thereof, an organic acid, and optionally other polymers, having a ratio of wet cup permeance to dry cup permeance greater than 10. The vapor barrier layer comprises ethylene polymer, propylene polymer, polyvinyl alcohol, polyamide, polyester, ethylene vinyl alcohol copolymer, polyvinylidene chloride, PVC, or combinations of two or more thereof. The film is useful as a variable vapor barrier for moisture control of buildings. Also disclosed are articles comprising the multilayer film.

    Abstract translation: 公开了一种多层膜或片,其包括至少一个蒸气阻挡层和至少一个蒸汽透过调节层,其中蒸气透过调节层包含中和的酸共聚物或离聚物,有机酸和任选的其它聚合物, 具有大于10的湿杯渗透率与干杯渗透率的比率。蒸气阻隔层包括乙烯聚合物,丙烯聚合物,聚乙烯醇,聚酰胺,聚酯,乙烯乙烯醇共聚物,聚偏二氯乙烯,PVC或其两种或更多种的组合 。 该电影可用作建筑物湿度控制的可变蒸气屏障。 还公开了包含多层膜的制品。

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