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    • 10. 发明授权
    • Non-chromate conversion coating compositions, process for conversion coating metals, and articles so coated
    • 非铬酸盐转化涂料组合物,转化涂覆金属的方法和如此涂覆的制品
    • US06821633B2
    • 2004-11-23
    • US10439713
    • 2003-05-16
    • Jianping LiuPatrick A. ScaleraShawn E. Dolan
    • Jianping LiuPatrick A. ScaleraShawn E. Dolan
    • B32B1504
    • C09D5/08C08G14/06C23C22/34Y10T428/31504
    • In at least one aspect, the invention relates to an entirely or substantially chromium-free conversion coating composition and process for conversion coating metal surfaces that provides corrosion resistance. In at least another aspect, the present invention relates to an article having a metal surface that is at least partially coated with an entirely or substantially chromium-free conversion coating that provides corrosion resistance. In certain embodiments, the conversion coating composition comprises water and (A) dissolved fluorometallate anions selected from the group consisting of TiF6−2, ZrF6−2, HfF6−2, SiF6−2, AlF6−3, GeF6−2, SnF6−2, BF4−, and mixtures thereof and (B) a water-soluble polymer which is a Mannich adduct of poly(4-vinyl phenol) and N-methyl ethanolamine. In other embodiments, the composition also comprises (C) a water-soluble polymer which is a Mannich adduct of poly(4-vinyl phenol) and N-methyl glucamine.
    • 在至少一个方面,本发明涉及完全或基本上无铬的转化涂料组合物和提供耐腐蚀性的转化涂覆金属表面的方法。 在至少另一方面,本发明涉及一种具有金属表面的制品,该金属表面至少部分地涂覆有提供耐腐蚀性的完全或基本上无铬的转化涂层。 在某些实施方案中,转化涂料组合物包含水和(A)溶解的选自TiF 6 -2 ZrF 6 -2 HfF 6 -2 SiF 6 -2 AlF 6 - 的氟金属酸盐阴离子, 3+,GeF 6 -2,SnF 6 -2,BF 4 - 及其混合物,(B)作为聚(4-乙烯基苯酚)和N-甲基乙醇胺的曼尼希加成物的水溶性聚合物 。 在其它实施方案中,组合物还包含(C)水溶性聚合物,其是聚(4-乙烯基苯酚)和N-甲基葡糖胺的曼尼希加合物。