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    • 9. 发明申请
    • FUEL CELL GAS DIFFUSION LAYER
    • 燃料电池气体扩散层
    • WO2005034271A3
    • 2005-10-27
    • PCT/US2004028750
    • 2004-09-03
    • 3M INNOVATIVE PROPERTIES CO
    • MEKALA DAVID RSTEGINK DAVID WDAVID MOSES MFRISK JOSEPH W
    • H01M8/02H01M8/10
    • H01M8/0239H01M8/023H01M8/0234H01M8/0243H01M8/0245H01M2008/1095Y02P70/56Y10T428/3154
    • The present invention provides a fuel cell gas diffusion layer comprising a hydrophilic surface layer having a thickness of no more than 1 micron, and, thereunder, a hydrophobic second layer comprising a fluoropolymer having a thickness of at least 5 microns. Additionally, the present invention provides a method of making a fuel cell gas diffusion layer comprising the steps of a) providing a carbon fiber construction; b) coating at least the upper surface of the carbon fiber construction with composition which comprises a fluoropolymer; and c) exposing the upper surface to at least one plasma, such as a silane plasma, so as to generate a hydrophilic surface layer having a thickness of no more than 1 micron. The present invention also provides a method additionally comprising the step of partially covering the upper surface with a mask having windows according to a pattern, such that the hydrophilic surface layer is applied according to the pattern. The present invention also provides a method wherein the carbon fiber construction is provided as a roll good and the step of exposing said upper surface to at least one plasma is performed in continuous roll-to-roll fashion.
    • 本发明提供了一种燃料电池气体扩散层,其包括厚度不超过1微米的亲水性表面层和其下的疏水性第二层,所述疏水性第二层包含厚度至少为5微米的含氟聚合物。 此外,本发明提供了一种制造燃料电池气体扩散层的方法,包括以下步骤:a)提供碳纤维结构; b)用包含含氟聚合物的组合物至少涂覆碳纤维结构的上表面; 和c)将所述上表面暴露于至少一种等离子体,例如硅烷等离子体,以便产生厚度不超过1微米的亲水表面层。 本发明还提供了一种方法,其另外包括用根据图案的具有窗口的掩模部分地覆盖上表面的步骤,使得亲水表面层根据图案施加。 本发明还提供了一种方法,其中将碳纤维结构作为卷材提供,并且使所述上表面暴露于至少一种等离子体的步骤以连续的卷对卷方式进行。
    • 10. 发明申请
    • MOISTURE BARRIER FILM ARTICLES AND METHODS OF MAKING
    • 水分阻挡膜制品和制造方法
    • WO2017091428A3
    • 2017-07-13
    • PCT/US2016062395
    • 2016-11-17
    • 3M INNOVATIVE PROPERTIES CO
    • KANUGA KARNAV DDAVID MOSES M
    • B32B27/32B32B9/00G02B27/00
    • H04L29/06H01L31/0203H01L51/448
    • A barrier film article comprising a polymeric substrate, a coating layer, and a barrier layer. The coating layer is disposed over a major face of the polymeric layer, and includes EAA copolymer. The barrier layer is disposed over the coating layer opposite the polymeric substrate, and includes silicon and oxygen. In some non-limiting embodiments, the barrier layer may be a diamond-like carbon (DLC) or a diamond-like glass (DLG). The barrier film articles are well suited for use with various electrical devices, for example as the backsheet of a PV module. The barrier film articles of the present disclosure can optionally provide a significant barrier to moisture vapor, for example exhibiting a MVTR of less than about 2.5 g/m2/day.
    • 一种阻隔膜制品,其包含聚合物基材,涂层和阻隔层。 涂层设置在聚合物层的主面上,并且包括EAA共聚物。 阻挡层设置在与聚合物基底相对的涂层上方,并且包括硅和氧。 在一些非限制性实施例中,阻挡层可以是类钻碳(DLC)或类金刚石玻璃(DLG)。 阻挡膜制品非常适合用于各种电气设备,例如作为PV模块的背板。 本公开的阻挡膜制品可以任选地提供对湿气的显着屏障,例如展现小于约2.5g / m 2 /天的MVTR。