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    • 13. 发明授权
    • Aqueous intermediate coating composition and method for forming multilayer coating film
    • 水性中间涂料组合物和形成多层涂膜的方法
    • US07718729B2
    • 2010-05-18
    • US11354111
    • 2006-02-15
    • Hideaki KatsutaShingo SatoSatoru FurusawaTakato Adachi
    • Hideaki KatsutaShingo SatoSatoru FurusawaTakato Adachi
    • B05D7/00B05D1/36C25D5/00
    • C09D133/14B05D1/007B05D7/56
    • The present invention provides an aqueous intermediate coating composition comprising (A) an acrylic emulsion resin having a hydroxy value of 5 to 80 mgKOH/g and an acid value of 1 to 15 mgKOH/g, obtainable by emulsion polymerization of monomer mixture (a) comprising ethyl acrylate, a hydroxy-containing radically polymerizable unsaturated monomer and a carboxy-containing radically polymerizable unsaturated monomer, the ethyl acrylate content of the monomer mixture being 60 wt. % or more; (B) a carboxy-containing resin having a hydroxy value of more than 80 mgKOH/g but not more than 200 mgKOH/g; (C) a curing agent; and (D) a coloring pigment, and having a solids content of 60 wt. % or more. The invention also provides a method for forming a multilayer coating film using said aqueous intermediate coating composition.
    • 本发明提供一种水性中间体涂料组合物,其包含(A)通过单体混合物(a)的乳液聚合可获得羟值为5至80mgKOH / g和酸值为1至15mgKOH / g的丙烯酸乳液树脂, 包含丙烯酸乙酯,含羟基的可自由基聚合的不饱和单体和含羧基的可自由基聚合的不饱和单体,单体混合物的丙烯酸乙酯含量为60wt。 % 或者更多; (B)羟基值大于80mgKOH / g但不超过200mgKOH / g的含羧基树脂; (C)固化剂; 和(D)着色颜料,并且具有60重量%的固体含量。 % 或者更多。 本发明还提供了使用所述水性中间涂料组合物形成多层涂膜的方法。