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    • 5. 发明申请
    • PAINT COMPOSITIONS, A METHOD OF FINISH-PAINTING AND PAINTED OBJECTS
    • 涂料组合物,涂漆和涂漆物品的方法
    • US20110152440A1
    • 2011-06-23
    • US12674534
    • 2008-08-22
    • Hitoshi TaniguchiHiroyuki TakagiEishi TsukamotoAndreas PoppeBjörn FeldmannJulia MelzerSabine HoltschulteKarl-Heinz Joost
    • Hitoshi TaniguchiHiroyuki TakagiEishi TsukamotoAndreas PoppeBjörn FeldmannJulia MelzerSabine HoltschulteKarl-Heinz Joost
    • C09D133/08
    • C09D133/066C08K5/29C08L33/066C08L101/02C08L2666/04
    • [Problem] To provide a paint composition which forms paint films which are excellent in terms of car-wash scratching resistance, acid resistance and weather resistance, a method of finish painting and painted objects.[Means of Resolution] A paint composition which has as essential components hydroxyl group containing resin (A) which has a hydroxyl group value of from 80 to 220 mgKOH/g, a glass transition temperature of −50° C. or above but below 0° C. and which contains from 25 to 55 mass % of units of 4-hydroxybutyl (meth)acrylate origin, hydroxyl group containing resin (B) which has a hydroxyl group value of from 80 to 220 mgKOH/g and a glass transition temperature of from 0 to 50° C. and crosslinking agent (C) comprising polyisocyanate compound, characterized in that the proportions of hydroxyl group containing resin (A) and hydroxyl group containing resin (B) included are, as a ratio of the solid fraction masses, from 95/5 to 50/50, and the proportion of isocyanate groups which are the functional groups of the crosslinking agent (C) included with respect to the hydroxyl groups in total of the hydroxyl group containing resin (A) and the hydroxyl group containing resin (B), as the NCO/OH mol ratio, is from 0.5 to 1.5.
    • [问题]提供一种油漆组合物,其形成在洗车耐刮擦性,耐酸性和耐候性方面优异的漆膜,涂漆和涂漆物品的方法。 [解决方法]将羟基含量为80〜220mgKOH / g,玻璃化转变温度为-50℃以上但低于0的含羟基树脂(A)作为必要成分的涂料组合物 ℃,含有25〜55质量%的(甲基)丙烯酸4-羟基丁酯单元,羟值为80〜220mgKOH / g的羟基树脂(B),玻璃化转变温度 为0〜50℃,含有多异氰酸酯化合物的交联剂(C)的特征在于,含有羟基的树脂(A)和含有羟基的树脂(B)的比例为固体成分质量比 ,95/5〜50/50,作为交联剂(C)的官能团的异氰酸酯基的含量相对于含羟基的树脂(A)和羟基的羟基的比例 含有树脂(B),作为NCO / OH摩尔 比例为0.5〜1.5。