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    Waterborne coating composition having improved rheology control and appearance
    7.
    发明授权
    Waterborne coating composition having improved rheology control and appearance 失效
    水性涂​​料组合物具有改进的流变控制和外观

    公开(公告)号：US5703155A

    公开(公告)日：1997-12-30

    申请号：US627527

    申请日：1996-04-04

    申请人： Shanti Swarup ,  Richard J. Sadvary

    发明人： Shanti Swarup ,  Richard J. Sadvary

    IPC分类号： B05D5/06 ,  C08F20/10 ,  C08F220/10 ,  C09D4/06 ,  C09D155/00 ,  C09D163/00 ,  C09D175/04 ,  C09K3/00 ,  C08L31/00

    CPC分类号： C09D155/005 ,  C08F20/10 ,  C09D175/04

    摘要： Waterborne coating compositions are provided comprising a polymeric film-forming resin, a non-gelled copolymer and up to about 2.1 percent by weight silica, based on the total weight of resin solids in the coating compositions. The non-gelled copolymer is prepared from about 75 to about 95 percent by weight of an ethylenically unsaturated monomer such as methyl methacrylate, butyl acrylate, butyl methacrylate, styrene, and mixtures thereof; about 2 to about 12 percent by weight of an ethylenically unsaturated monomer having one acid functional group; and about 2 to about 20 percent by weight of an ethylenically unsaturated oligomeric monomer hating a number average molecular weight of about 1500 to about 4000 and which is derived from a hydroxyl functional acid having a predominantly hydrocarbon chain of from about 10 to 19 carbon atoms. Note that the percentages by weight are based upon the total solid weight of reactants used to prepare the copolymer. The coating compositions may be applied to a substrate alone or as a clear film-forming composition in a color-plus-clear composite coating.

    摘要翻译： 基于涂料组合物中树脂固体的总重量，提供水性涂料组合物，其包含聚合物成膜树脂，非胶凝共聚物和高达约2.1重量％的二氧化硅。 非胶凝共聚物由约75至约95重量％的烯属不饱和单体如甲基丙烯酸甲酯，丙烯酸丁酯，甲基丙烯酸丁酯，苯乙烯及其混合物制备; 约2至约12重量％的具有一个酸官能团的烯属不饱和单体; 和约2至约20重量％的烯键式不饱和低聚单体，其数均分子量为约1500至约4000，并且衍生自主要具有约10至19个碳原子的烃链的羟基官能酸。 注意，重量百分数是基于用于制备共聚物的反应物的总固体重量。 涂料组合物可以单独使用或者作为透明的成膜组合物涂覆在彩色 - 透明的复合涂层中。