Powder coating compositions and their use
    1.
    发明授权
    Powder coating compositions and their use 失效
    粉末涂料组合物及其用途

    公开(公告)号:US5635548A

    公开(公告)日:1997-06-03

    申请号:US432119

    申请日:1995-06-12

    摘要: A power coating composition comprises at least one film-forming polymeric material and has dry-blended therewith two or more dry-blended additives selected from solid, particulate, inorganic, water-insoluble materials which may be ceramic or mineral materials and/or may be oxides, mixed oxides, hydrated oxides, hydroxides, oxide-hydroxides or oxysalts of metals and metalloids, at least 95% by volume of the powder coating composition having a particle size not exceeding 50 microns.

    摘要翻译: PCT No.PCT / GB93 / 02288 Sec。 371日期:1995年6月12日 102(e)日期1995年6月12日PCT 1993年11月5日PCT公布。 公开号WO94 / 11446 日期1994年5月26日权力涂料组合物包含至少一种成膜聚合物材料,并与其干混两种或多种选自固体,颗粒,无机,水不溶性材料的干混添加剂,其可以是陶瓷或矿物材料, /或可以是金属和准金属的氧化物,混合氧化物,水合氧化物,氢氧化物,氧化物 - 氢氧化物或氧化物,至少95体积%的粉末涂料组合物具有不超过50微米的粒度。

    Fluidized bed powder coating process utilizing tribostatic charging
    3.
    发明授权
    Fluidized bed powder coating process utilizing tribostatic charging 有权
    流化床粉末涂布工艺利用静电充电

    公开(公告)号:US06280798B1

    公开(公告)日:2001-08-28

    申请号:US09555884

    申请日:2000-07-24

    IPC分类号: B05D124

    摘要: A process for forming a coating on a conductive substrate, which comprises establishing a fluidized bed of a powder coating composition, in which the mechanism for particle charging is tribostatic charging immersing the substrate wholly or partly within the said fluidized bed, applying a voltage to the substrate for at least part of the period of immersion, whereby particles of the powder coating composition adhere to the substrate, withdrawing the substrate from the fluidized bed and forming the adherent particles into a continuous coating over at least part of the substrate. The process enables the coating of substrate areas which, because of the Faraday cage effect, are inaccessible in conventional electrostatic coating processes, and also enables the formation of thinner coatings than are obtainable by conventional fluidized-bed processes.

    摘要翻译: 一种用于在导电基材上形成涂层的方法,其包括建立粉末涂料组合物的流化床,其中用于颗粒装料的机理是摩擦力充电,将基材全部或部分浸入所述流化床内,向所述流化床施加电压 底物,至少部分浸渍期间,由此粉末涂料组合物的颗粒粘附到基材上,从基板上取出基材,并将粘合颗粒形成至少部分基材上的连续涂层。该方法使得 由于法拉第笼式效应,在常规静电涂布工艺中不可接触的基底区域的涂层,并且还能够形成比通过常规流化床方法可获得的更薄的涂层。