METAL PRETREATMENT COMPOSITION CONTAINING ZIRCONIUM, COPPER, ZINC, AND NITRATE AND RELATED COATINGS ON METAL SUBSTRATES
    2.
    发明申请
    METAL PRETREATMENT COMPOSITION CONTAINING ZIRCONIUM, COPPER, ZINC, AND NITRATE AND RELATED COATINGS ON METAL SUBSTRATES 有权
    金属预处理组合物,包含锆,铜,锌和硝酸盐及相关涂料在金属基材上

    公开(公告)号:US20120301739A1

    公开(公告)日:2012-11-29

    申请号:US13531666

    申请日:2012-06-25

    CPC分类号: C23C22/34 Y10T428/12139

    摘要: A pretreatment composition for metal that provides enhanced corrosion resistance, enhanced paint adhesion and reduced chip damage to a wide variety of metal substrates. The pretreatment is also cleaner because it is based on zirconium rather than zinc phosphates. The pretreatment coating composition in use preferably comprises 50 to 300 parts per million (ppm) zirconium, 0 to 100 ppm of SiO2, 150-2000 ppm of total fluorine and 10-100 ppm of free fluorine, 150 to 10000 ppm of zinc and 10 to 10000 ppm of an oxidizing agent and has a pH of 3.0 to 5.0, preferably about 4.0. The coating composition can optionally include 0 to 50 ppm of copper. The suitable oxidizing agents can be selected from a large group.

    摘要翻译: 用于金属的预处理组合物,其提供增强的耐腐蚀性,增强的漆附着力并减少对各种金属基材的碎屑损伤。 预处理也更清洁,因为它基于锆而不是磷酸锌。 使用的预处理涂料组合物优选含有50〜300份(ppm)锆,0〜100ppm SiO 2,150〜2000ppm总氟,10〜100ppm游离氟,150〜10000ppm锌,10 至10000ppm的氧化剂,并且具有3.0至5.0,优选约4.0的pH。 涂料组合物可任选地包括0至50ppm的铜。 合适的氧化剂可以选自大组。