COLOR TRAVEL OXIDIZED ALUMINUM PIGMENTS
    27.
    发明公开
    COLOR TRAVEL OXIDIZED ALUMINUM PIGMENTS 有权
    DURCH FARBVERSCHIEBUNG OXIDIERTE ALUMINIUMPIGMENTE

    公开(公告)号:EP2882811A1

    公开(公告)日:2015-06-17

    申请号:EP13752994.7

    申请日:2013-08-08

    IPC分类号: C09C1/64

    摘要: The oxidized aluminum pigment comprises not more than 95% by weight metallic aluminum, wherein the pigment is a flaky particle, and has a color travel from the hue angle range of about 50° to about 100° at the aspecular observation angle of 15° to a hue angle range of about 200° to about 270° at the aspecular observation angle of 110°. The oxidized aluminum pigment may be made by the steps of: providing a flaky aluminum pigment, and oxidizing the aluminum pigment in a water-in-oil emulsion comprising a surfactant in the presence of a base. The water-in-oil emulsion comprises a mixture of water dispersed in a hydrocarbon solvent. The aluminum pigment is predominantly in the hydrocarbon solvent during the oxidation step, and the amount of water in the mixture is in the range of about 5% to about 40% of the total weight of the emulsion.

    摘要翻译: 所述氧化铝颜料包含不超过95重量%的金属铝,其中所述颜料是片状颗粒,并且在15°至15°的倾斜观察角下具有从约50°至约100°的色调角范围的颜色行进到 在110°的俯视观察角度的约200°至270°的色相角范围。 氧化铝颜料可以通过以下步骤制备:提供片状铝颜料,并在碱的存在下将包含表面活性剂的油包水乳液中的铝颜料氧化。 油包水乳液包含分散在烃溶剂中的水的混合物。 在氧化步骤期间,铝颜料主要在烃溶剂中,并且混合物中的水的量在乳液总重量的约5%至约40%的范围内。