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    • 63. 发明授权
    • Aqueous coating composition
    • 水性涂​​料组合物
    • US5455306A
    • 1995-10-03
    • US202564
    • 1994-02-28
    • Yoshio MoriShiro Kojima
    • Yoshio MoriShiro Kojima
    • C08F8/44C08F290/04C09D151/08C09D155/00C08F265/04
    • C08F8/44C08F290/04C09D151/08C09D155/005
    • An aqueous coating composition constitutes an aqueous graft copolymer and an amino resin, the graft copolymer being obtained by neutralizing, with a base, the carboxyl groups of a copolymer which is obtained by copolymerizing the following components (a), (b), (c) and (d) and which contains 3-30% of component (a), 3-20% of component (b), 5-40% of component (c) and 10-89% of component (d):(a) a radical-polymerizable compound, preferably a macromolecular monomer which is a copolymer of a hydroxyalkyl (meth)acrylate and another .alpha.,.beta.-ethylenically unsaturated monomer, having a radical-polymerizable group at one end,(b) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid,(c) a hydroxyalkyl (meth)acrylate, and(d) another vinyl monomer.
    • 水性涂​​料组合物构成水性接枝共聚物和氨基树脂,所述接枝共聚物是通过用碱中和共聚物的羧基得到的,所述共聚物的羧基是通过以下组分(a),(b),(c )和(d),并且其包含3-30%的组分(a),3-20%的组分(b),5-40%的组分(c)和10-89%的组分(d):(a )可自由基聚合的化合物,优选大分子单体,其是在一端具有自由基聚合性基团的(甲基)丙烯酸羟烷基酯和另一种α,β-烯属不饱和单体的共聚物,(b)α,β- 烯键式不饱和羧酸,(c)(甲基)丙烯酸羟烷基酯和(d)另一种乙烯基单体。