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    • 5. 发明授权
    • Two-component urethane coating system
    • 双组分聚氨酯涂料体系
    • US4436855A
    • 1984-03-13
    • US508992
    • 1983-06-29
    • William A. HigginsJohn S. Perz
    • William A. HigginsJohn S. Perz
    • C08G18/38C08G18/62C09D175/00C08K5/52
    • C09D175/00C08G18/3878C08G18/6291
    • The present invention contemplates the provision of two-component urethane coating compositions comprising a first component comprising an organic polyfunctional isocyanate, and a second component comprising an acidic ester of a phosphoric acid, the alcohol portions of said acidic acid being selected from the group consisting of hydrocarbyloxy and hydroxy-substituted hydrocarbyloxy compounds, such compositions providing enhanced corrosion resistance properties as well as improved flame retardency and metal adhesion characteristics over the two-component urethane systems of the prior art. An essential ingredient in the compositions of the invention is a non-Newtonian colloidal disperse system which can be provided with either the first component and/or the second component parts of the compositions of the invention. The non-Newtonian colloidal disperse systems provided in accordance with the present invention comprise (1) solid metal-containing colloidal particles predispersed in (2) a disperse medium of at least one inert organic liquid and (3) as an essential third component at least one member selected from the class consisting of organic compounds which are substantially soluble in said disperse medium, the molecules of said organic compound being characterized by polar substituents and hydrophobic portions. The invention also relates to a method of coating a substrate comprising mixing the foregoing components and depositing the resulting composition on said substrate.
    • 本发明考虑提供双组分氨基甲酸酯涂料组合物,其包含包含有机多官能异氰酸酯的第一组分和包含磷酸的酸性酯的第二组分,所述酸性酸的醇部分选自 烃氧基和羟基取代的烃氧基化合物,这些组合物在现有技术的双组分氨基甲酸酯体系中提供增强的耐腐蚀性以及改善的阻燃性和金属粘合特性。 本发明组合物中的必要成分是非牛顿胶体分散体系,其可以具有本发明组合物的第一组分和/或第二组分。 根据本发明提供的非牛顿胶体分散体系包括(1)预固化的(2)至少一种惰性有机液体的分散介质和(3)作为必需的第三组分的至少固体金属的胶体颗粒 选自由基本上可溶于所述分散介质中的有机化合物组成的一类,所述有机化合物的分子的特征在于极性取代基和疏水部分。 本发明还涉及一种涂覆基材的方法,包括混合上述组分并将所得组合物沉积在所述基材上。