Coating Compositions With Anticorrosion Properties
    2.
    发明申请
    Coating Compositions With Anticorrosion Properties 审中-公开
    具有防腐蚀性能的涂料组合物

    公开(公告)号:US20120094130A1

    公开(公告)日:2012-04-19

    申请号:US12905999

    申请日:2010-10-15

    CPC classification number: C09D5/084 Y10T428/31529 Y10T428/31699

    Abstract: Anticorrosive coating compositions comprise a binding polymer and an amorphous aluminum phosphate corrosion inhibiting pigment. The composition comprises from about 1 to 25 percent by weight amorphous aluminum phosphate. The amorphous aluminum phosphate has a water adsorption potential of up to about 25 percent by weight water. The composition provides a controlled phosphate delivery of from about 50 to 500 ppm, and preferably of from about 100 to 200 ppm. The composition has a total solubles content of less than about 1,500 ppm. The amorphous aluminum phosphate is preferably substantially free of alkali metals. The amorphous aluminum phosphate is made by combining aluminum hydroxide with phosphoric acid and sodium aluminate. The amorphous aluminum phosphate is treated to reduce the level of unwanted solubles, and the treated amorphous aluminum phosphate is dried at less than about 300° C. The composition is used as a primer coat, a mid-coat, and/or a top-coat coating.

    Abstract translation: 防腐涂料组合物包含结合聚合物和无定形磷酸铝腐蚀抑制颜料。 该组合物包含约1至25重量%的无定形磷酸铝。 无定形磷酸铝具有高达约25重量%水的吸水势。 组合物提供约50至500ppm,优选约100至200ppm的受控磷酸盐递送。 该组合物的总可溶物含量小于约1,500ppm。 无定形磷酸铝优选基本上不含碱金属。 无定形磷酸铝由氢氧化铝与磷酸和铝酸钠组合而成。 处理无定形磷酸铝以降低不需要的可溶物的水平,并将处理的无定形磷酸铝在小于约300℃下干燥。该组合物用作底漆,中涂层和/ 涂层涂层。

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