Curable coating compositions containing carmamate-functional compounds
    10.
    发明授权
    Curable coating compositions containing carmamate-functional compounds 有权
    含有氨基甲酸酯官能化合物的可固化涂料组合物

    公开(公告)号:US6106951A

    公开(公告)日:2000-08-22

    申请号:US198472

    申请日:1998-11-24

    摘要: The invention provides a process that includes a first step of reacting the hydroxyl groups of a acrylic resin having hydroxyl groups and carbamate groups with a compound that converts the hydroxyl groups to new groups unreactive with an aminoplast crosslinker; a second step of combining the acrylic resin reaction product with at least an aminoplast crosslinker to form a coating composition; and a third step of applying the coating composition to a substrate and curing the applied coating layer, in which substantially no ether linkages are formed. Aminoplast crosslinkers are desirable for other reasons such as providing high solids coatings having excellent appearance that cure under moderate conditions. Avoiding the ether linkages that could be formed by reaction of aminoplast crosslinkers with hydroxyl groups improves the resistance of the cured coating to environmental etch.

    摘要翻译: 本发明提供了一种方法,其包括使具有羟基的丙烯酸树脂和氨基甲酸酯基团的羟基与将羟基转化为不与氨基塑料交联剂反应的新基团的化合物的第一步骤; 将丙烯酸树脂反应产物与至少一种氨基塑料交联剂组合以形成涂料组合物的第二步骤; 以及第三步骤,将涂料组合物施加到基材上并固化涂覆的涂层,其中基本上不形成醚键。 氨基塑料交联剂由于其它原因是理想的,例如提供在中等条件下固化的具有优异外观的高固含量涂层。 避免通过氨基塑料交联剂与羟基反应形成的醚键可以改善固化涂层对环境蚀刻的阻力。