Fluoropolymer coatings comprising aziridine compounds

    公开(公告)号:US10208223B2

    公开(公告)日:2019-02-19

    申请号:US15953120

    申请日:2018-04-13

    Abstract: A fluoropolymer coating composition is described comprising an aqueous liquid medium, fluoropolymer particles dispersed in the aqueous liquid medium, and at least one aziridine compound. The aziridine compound comprises at least two aziridine groups (i.e. polyaziridine) or at least one aziridine group and at least one alkoxy silane group.In another embodiment, an article is described comprising a substrate wherein a surface of the substrate comprises a coating comprising fluoropolymer particles; and a reaction product of at least one aziridine compound comprising at least two aziridine groups or at least one aziridine group and at least one alkoxy silane group. The coating can be utilized as a primer for bonding a non-fluorinated substrate to a fluoropolymer film and/or the coating can be used as an (e.g. outer exposed) surface layer. In some embodiments, the article may be the (e.g. backside) film of a photovoltaic module.

    BACKSHEET FILM WITH IMPROVED HYDROLYTIC STABILITY
    17.
    发明申请
    BACKSHEET FILM WITH IMPROVED HYDROLYTIC STABILITY 审中-公开
    具有改进的水解稳定性的背胶膜

    公开(公告)号:US20150040977A1

    公开(公告)日:2015-02-12

    申请号:US14388038

    申请日:2013-02-08

    Abstract: This disclosure generally relates to films capable of use in photovoltaic modules, to films, to methods of use and manufacture of these films, and to photovoltaic cells and/or modules including these films. One exemplary embodiment of such a film is a barrier layer having a moisture vapor transmission rate of less than 3.0 g/m2-day, wherein the barrier layer includes a polyethylene terephthalate having an apparent crystal size of less than 65 angstroms. Another exemplary embodiment of such a film is a multilayer film for use as a backsheet in a photovoltaic module including: a first layer including a fluoropolymer; a second layer including a polyethylene terephthalate having an apparent crystal size of less than 65 angstroms; and a third layer including an olefinic polymer. The first layer and the third layer are bonded to opposing major surfaces of the second layer.

    Abstract translation: 本公开一般涉及能够用于光伏模块,薄膜,这些薄膜的使用和制造方法以及包括这些薄膜的光伏电池和/或模块的薄膜。 这种膜的一个示例性实施方案是具有小于3.0g / m 2·天的湿气透过率的阻挡层,其中阻挡层包括具有小于65埃的表观晶体尺寸的聚对苯二甲酸乙二醇酯。 这种膜的另一个示例性实施方案是用作光伏模块中的底片的多层膜,包括:包含含氟聚合物的第一层; 第二层包括具有小于65埃的表观晶体尺寸的聚对苯二甲酸乙二醇酯; 和包含烯烃聚合物的第三层。 第一层和第三层结合到第二层的相对的主表面。

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