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    • 10. 发明申请
    • WATER-BASED INTERMEDIATE COATING COMPOSITION AND METHOD FOR FORMING MULTILAYER COATING FILM
    • 基于水的中间涂层组合物和形成多层涂膜的方法
    • US20080131714A1
    • 2008-06-05
    • US12024370
    • 2008-02-01
    • Teruzo ToiYasuhiko Nakae
    • Teruzo ToiYasuhiko Nakae
    • B32B27/28B05D3/02
    • C09D133/066C08L2312/00C08L2312/08C09D143/04Y10T428/31736Y10T428/31786
    • The present invention provides a water-based intermediate coating composition having excellent chipping resistance and water resistance when made into a multilayer coating film, and providing excellent adaptability with a top coating film and a base coating film and excellent finish appearance, and a method for forming a multilayer coating film using the same. A water-based intermediate coating composition comprising a copolymer resin emulsion and a curing agent, the copolymer resin emulsion being obtained by emulsion polymerizing: a monomer (a) comprising at least one monomer selected from (meth)acrylic acid alkyl esters, and further comprising, as is necessary, at least one monomer selected from the group consisting of styrene-based monomers, (meth)acrylonitrile, and (meth)acrylamide; an acid group-containing polymerizable unsaturated monomer (b); a hydroxyl group-containing polymerizable unsaturated monomer (c); and a cross-linkable monomer (d), wherein a glass transition temperature of said resin is in the range of −50° C. to 20° C., an acid value of said resin is in the range of 2 to 60 mg KOH/g, and a hydroxyl value of said resin is in the range of 10 to 120 mg KOH/g.
    • 本发明提供一种水溶性中间涂料组合物,其制成多层涂膜时具有优异的耐崩裂性和耐水性,并且与顶涂膜和底涂层一起提供优异的适应性和优异的外观,以及成型方法 使用其的多层涂膜。 一种包含共聚物树脂乳液和固化剂的水性中间涂料组合物,所述共聚物树脂乳液通过乳液聚合获得:包含至少一种选自(甲基)丙烯酸烷基酯的单体的单体(a),并且还包含 必要时,选自苯乙烯类单体,(甲基)丙烯腈和(甲基)丙烯酰胺中的至少一种单体; 含酸基的可聚合不饱和单体(b); 含羟基的可聚合不饱和单体(c); 和可交联单体(d),其中所述树脂的玻璃化转变温度在-50℃至20℃的范围内,所述树脂的酸值在2至60mg KOH / g,所述树脂的羟基值在10〜120mgKOH / g的范围内。