Aqueous primer coating composition, process for formation of coating film using said composition, and coated article
    1.
    发明申请
    Aqueous primer coating composition, process for formation of coating film using said composition, and coated article 审中-公开
    水性底漆涂料组合物,使用所述组合物形成涂膜的方法和涂布制品

    公开(公告)号:US20050222324A1

    公开(公告)日:2005-10-06

    申请号:US11151149

    申请日:2005-06-12

    摘要: The present invention provides: an aqueous primer coating composition, which can form a coating film excellent in the humidity-resisting adhesion and the gasohol resistance, and which can enhance the productivity in the coating steps; a process for formation of a coating film using this composition; and a coated article. The aqueous primer coating composition comprises an acid-anhydride-modified chlorinated polyolefin emulsion resin (A), an aqueous urethane dispersion (B), an aqueous epoxy resin (C), and an organic strong base and/or its salt (D); wherein: relative to the total nonvolatile content of the (A), (B), and (C), the nonvolatile content of the (A) is in the range of 20 to 60 weight %, that of the (B) is in the range of 10 to 40 weight %, and that of the (C) is in the range of 20 to 60 weight %, and further, the (D) is in the range of 1 to 5 weight %. The process for formation of a coating film comprises the steps of: coating a substrate with this aqueous primer coating composition; and thereafter drying the resultant primer coating film in such a manner that its nonvolatile content will not be less than 60 weight %; and thereafter overcoating the primer coating film with a base paint and a clear paint; and thereafter baking the resultant three-layered coating film onto the substrate.

    摘要翻译: 本发明提供一种水性底漆涂料组合物,其可以形成耐湿粘合性和耐醇醇性优异的涂膜,并且可以提高涂布步骤的生产率; 使用该组合物形成涂膜的方法; 和涂层制品。 水性底漆涂料组合物包含酸酐改性的氯化聚烯烃乳液树脂(A),水性聚氨酯分散体(B),水性环氧树脂(C)和有机强碱和/或其盐(D); 其中:相对于(A),(B)和(C)的全部不挥发物含量,(A)的不挥发物含量在20〜60重量%的范围内,(B) 10〜40重量%的范围,(C)的范围在20〜60重量%的范围内,(D)在1〜5重量%的范围。 形成涂膜的方法包括以下步骤:用该水性底漆涂料组合物涂布基材; 然后以不挥发成分不低于60重量%的方式干燥得到的底漆涂膜; 然后用底漆和透明漆涂覆底漆涂膜; 然后将所得的三层涂膜烘烤到基材上。

    Water-borne primer coating composition and method of forming coating film
    2.
    发明授权
    Water-borne primer coating composition and method of forming coating film 有权
    水性底漆涂料组合物及其形成方法

    公开(公告)号:US08282727B2

    公开(公告)日:2012-10-09

    申请号:US11830462

    申请日:2007-07-30

    IPC分类号: B05D7/14

    摘要: A water-borne primer coating composition including a water-borne non-chlorinated polyolefin resin (A), a water-borne polyurethane resin (B), a water-borne epoxy resin (C) and an internally crosslinked acrylic particle emulsion (D), wherein the content of resin (A) is 15 to 60%, the content of resin (B) is 10 to 50%, the content of resin (C) is 20 to 50%, and the content of emulsion (D) is 5 to 20%, all by weight on the solid equivalent basis in 100% by weight of the total amount of resin (A), resin (B), resin (C) and emulsion (D), and resin (A) is a polypropylene resin having crystallinity of 35 to 55% and a weight average molecular weight of 50000 to 200000. The composition can achieve an adhesion property to a substrate, gasohol resistance, inhibition of peeling of a multilayer coating film in washing by high pressure cleaning and moisture resistance.

    摘要翻译: 包含水性非氯化聚烯烃树脂(A),水性聚氨酯树脂(B),水性环氧树脂(C)和内部交联的丙烯酸类颗粒乳液(D)的水性底漆涂料组合物, ,其中树脂(A)的含量为15〜60%,树脂(B)的含量为10〜50%,树脂(C)的含量为20〜50%,乳液(D)的含量为 5重量%至20重量%,以树脂(A),树脂(B),树脂(C)和乳液(D)的总量为100重量%的固体当量计,树脂(A)为 结晶度为35〜55%,重均分子量为50000〜200000的聚丙烯树脂。该组合物可以实现对基材的粘合性,耐醇油性,通过高压清洗和湿气抑制洗涤中多层涂膜的剥离 抵抗性。