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    Polyisocyanate cured ultradurable glossy coating compositions
    2.
    发明授权
    Polyisocyanate cured ultradurable glossy coating compositions 失效
    多异氰酸酯固化超薄光泽涂料组合物

    公开(公告)号：US5849835A

    公开(公告)日：1998-12-15

    申请号：US574825

    申请日：1995-12-19

    申请人： Suryya K. Das ,  Soner Kilic ,  Andrew J. Lauer

    发明人： Suryya K. Das ,  Soner Kilic ,  Andrew J. Lauer

    IPC分类号： C08G18/62 ,  C08J3/20 ,  C08F8/30 ,  C08K3/20 ,  C08L75/00

    CPC分类号： C08G18/6229

    摘要： A curable, film-forming composition is provided which includes: (a) a hydroxyl-containing acrylic solution polymer, and (b) a polyisocyanate crosslinking agent. The hydroxyl-containing acrylic solution polymer is present in an amount ranging from between about 60 to about 90 weight percent; and, the polyisocyanate crosslinking agent is present in an amount ranging from between about 10 to about 40 weight percent. The acrylic solution polymer is the reaction product of: (a) a cycloaliphatic and/or aromatic ester of (meth)acrylic acid having at least 6 carbon atoms in the cycloaliphatic and/or aromatic group, and (b) a hydroxyl functional acrylic monomer component. The hydroxyl functional acrylic monomer component is present in an amount such that the hydroxyl number of the resulting acrylic solution polymer is less than 60. This invention also provides a color-plus-clear coating system. This system includes: (a) applying a film-forming base coat onto a substrate, and (b) applying a clear, film-forming topcoat over the base coat. The clear topcoat includes the curable, film-forming composition described above.

    摘要翻译： 提供一种可固化的成膜组合物，其包括：（a）含羟基的丙烯酸溶液聚合物和（b）多异氰酸酯交联剂。 含羟基的丙烯酸溶液聚合物的存在量为约60至约90重量％; 多异氰酸酯交联剂的存在量为约10至约40重量％。 丙烯酸溶液聚合物是：（a）在脂环族和/或芳族基团中具有至少6个碳原子的（甲基）丙烯酸的脂环族和/或芳族酯的反应产物，和（b）羟基官能的丙烯酸单体 零件。 羟基官能丙烯酸单体组分的存在量使得所得丙烯酸溶液聚合物的羟值小于60.本发明还提供了一种颜色加透明的涂料体系。 该系统包括：（a）将成膜基底涂层施加到基底上，和（b）在底涂层上涂布透明的成膜面漆。 透明面漆包括上述可固化的成膜组合物。