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    • 5. 发明申请
    • Coating line and process for forming a multilayer composite coating on a substrate
    • 用于在基材上形成多层复合涂层的涂布线和工艺
    • US20070278104A9
    • 2007-12-06
    • US10366222
    • 2003-02-13
    • Sean PurdyDennis SimpsonRichard FoukesDavid AikenJames Rowley
    • Sean PurdyDennis SimpsonRichard FoukesDavid AikenJames Rowley
    • C25D5/10C23C28/00
    • B05D7/574B05D7/16C23C28/00
    • A process for forming a multilayer composite coating on a substrate is provided. The process includes forming an electrodeposition coating layer on the substrate by electrodeposition of a curable electrodepositable coating composition over at least a portion of the substrate. Optionally, the coated substrate is heated to a temperature and for a time sufficient to cure the electrodeposition coating layer. A basecoating layer is formed on the electrodeposition coating layer by depositing an aqueous curable basecoating composition directly onto at least a portion of the electrodeposition coating layer. Optionally, the basecoating layer is dehydrated. A top coating layer is formed on the basecoating layer by depositing a curable top coating composition which is substantially pigment-free directly onto at least a portion of the basecoating layer. The top coating layer, the basecoating layer, and, optionally, the electrodeposition coating layer are cured simultaneously.
    • 提供了在基板上形成多层复合涂层的方法。 该方法包括通过在基材的至少一部分上电沉积可固化的可电沉积涂料组合物在基材上形成电沉积涂层。 任选地,将涂覆的基底加热到足以固化电沉积涂层的温度和时间。 通过将水性可固化底涂层组合物直接沉积在电沉积涂层的至少一部分上,在电沉积涂层上形成底涂层。 任选地,底涂层脱水。 通过在基底层的至少一部分上沉积基本上无颜料的可固化顶涂层组合物,在底涂层上形成顶涂层。 同时固化顶涂层,底涂层和任选的电沉积涂层。