FLUOROPOLYMER COMPOSITIONS WITH IMPROVED MECHANICAL DAMPENING

    公开(公告)号:US20180355205A1

    公开(公告)日:2018-12-13

    申请号:US15778407

    申请日:2016-11-16

    Applicant: Arkema Inc.

    Abstract: The invention relates to an aqueous fluoropolymer hybrid composition having superior weathering resistance while maintaining excellent mechanical properties in coatings, paints, caulks and adhesives. The composition is comprised of: a) a vinylidene fluoride polymer, such as KYNAR® polymers from Arkema, b) a first vinyl polymer immiscible with the vinylidene fluoride polymer and having a Tg of less than 0° C., and c) a second vinyl polymer of a different composition, also having a Tg of less than 0° C., and containing groups capable of crosslinking. The invention also relates to waterborne coatings or paints containing the aqueous fluoropolymer hybrid composition, and an article, object, or structure coated with the fluoropolymer hybrid composition on at least one surface, either in a factory or in the field, to confer protection and decorative properties. Free films made from the waterborne compositions of the invention have a dynamic mechanical analysis loss tangent, tan (δ), of greater than 0.22 at a temperature of 0° C.

    WEATHERABLE COMPOSITE FOR FLEXIBLE THIN FILM PHOTOVOLTAIC AND LIGHT EMITTING DIODE DEVICES
    4.
    发明申请
    WEATHERABLE COMPOSITE FOR FLEXIBLE THIN FILM PHOTOVOLTAIC AND LIGHT EMITTING DIODE DEVICES 审中-公开
    柔性薄膜光伏和发光二极管装置的耐候复合材料

    公开(公告)号:US20150303336A1

    公开(公告)日:2015-10-22

    申请号:US14376859

    申请日:2013-02-07

    Applicant: Arkema Inc.

    CPC classification number: H01L31/048 H01L31/0322 H01L31/049 Y02E10/50

    Abstract: The invention provides a weatherable composite including a moisture barrier system having a moisture vapor transmission rate at or below 1×10−2 g/m2/day, at least one weatherable layer or coating, and a substrate that is disposed between the moisture barrier system and the weatherable layer or coating. The weatherable composite may be adhered to one or both sides (e.g., front and back) of a photovoltaic thin-film cell or organic light emitting diode such that the weatherable layer(s) or coating side(s) of the weatherable composite is exposed to the environment. The weatherable composite protects the device from both moisture and UV exposure.

    Abstract translation: 本发明提供了一种耐候性复合材料,其包括具有等于或低于1×10-2g / m 2 /天的水蒸气透过率的防潮系统,至少一个耐候层或涂层,以及设置在防潮系统 和耐候层或涂层。 耐候性复合材料可以粘附到光伏薄膜电池或有机发光二极管的一侧或两侧(例如,前面和后面),使得耐候性复合材料的耐候层或涂层侧暴露 到环境。 耐候性复合材料保护设备免受湿气和紫外线的侵害。

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