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    • 56. 发明授权
    • Solvent-free film-forming compositions, coated substrates and method related thereto
    • 无溶剂的成膜组合物,涂布的基材及其相关的方法
    • US06387997B1
    • 2002-05-14
    • US09437617
    • 1999-11-10
    • Mary E. GrolemundMasayuki NakajimaThomas R. HockswenderKurt G. Olson
    • Mary E. GrolemundMasayuki NakajimaThomas R. HockswenderKurt G. Olson
    • C08F28312
    • C09D183/10C08F283/12C08G77/442C09D151/08
    • An aqueous dispersion including polymeric microparticles which are prepared in a medium substantially free of organic solvent from a mixture of one or more reaction products of polymerizable, ethylenically unsaturated monomers, and one or more reactive organopolysiloxanes is provided. Pigmented film-forming compositions, curable compositions and topcoats of multi-component composite coating composition containing the above-described dispersions also are provided. The substantially solvent-free film-forming compositions of the invention are storage stable at room temperature and provide coatings with excellent application properties such as sag resistance and tack-free overspray, and excellent performance properties such as hardness and scratch resistance. The film-forming compositions are suitable for wet-on-wet application over a base coat with little or no mudcracking.
    • 提供了包含聚合物微粒的水分散体,其在基本上不含有机溶剂的介质中由可聚合的烯属不饱和单体和一种或多种反应性有机聚硅氧烷的一种或多种反应产物的混合物制备。 还提供了含有上述分散体的着色成膜组合物,可固化组合物和多组分复合涂料组合物的面漆。 本发明的基本上无溶剂的成膜组合物在室温下保存稳定,并提供具有优异应用性能的涂料,例如耐下落性和无粘性的过喷,以及优异的性能如硬度和耐刮擦性。 成膜组合物适用于湿法湿法施涂于基底涂层上,很少或没有泥浆破裂。