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    • 93. 发明申请
    • RUTILE-BASED PIGMENT AND A METHOD FOR THE PRODUCTION THEREOF
    • 基于颜色的颜料及其生产方法
    • US20070199479A1
    • 2007-08-30
    • US11676804
    • 2007-02-20
    • Rainer Heubach
    • Rainer Heubach
    • C09C1/36
    • C09C1/0084B02C17/16B02C17/20B02C17/22C01P2002/30C01P2002/52C01P2004/51C01P2004/53C01P2004/62C01P2004/80C01P2006/80C09C1/0096C09C1/34C09C1/36C09C1/3623C09C3/041
    • The invention relates to a fine-particle, bright and high-coating rutile-based pigment that is devoid of any metal or reactive metal compounds relevant to mill abrasion detectable by application technology but whose grain-size in terms of particle diameters ranges from 50 to 1000 μm, for mono-, bi-, tri- or oliho-modal size distribution and a primary maximum ranges from 230 to 400 μm, wherein optionally for a bi- or poly-modal frequency distribution, a secondary maximum is less than 25% of the primary maximum between 400 and 1000 μm. The method for producing said pigment consists in treating an organic mixed-phase rutile structured oxide pigment by high-speed grinding in suspension in a ball grinding mill provided with a mechanically and chemically resistant coating until said grain-size and a substantially isometric rounded particle shape are attained. According to the invention, means for viscosity adjustment and surface conditioning of the pigment are also provided. The inventive pigment differs from prior art by improved brightness, low whiteness or low lightness, relatively high hue saturation and by extremely high covering power which is not obtainable in said class of products up to now and exhibits a low photoactivity with respect to known fine-particle rutiles. In practice no abrasivity, neither interaction of possible grinding residues with an application matrix is observed.
    • 本发明涉及一种微粒,光亮和高涂层的金红石型颜料,其没有任何金属或反应性金属化合物,其与通过应用技术可检测到的研磨磨损相关,但是其粒径在粒径范围为50至 1000μm,用于单,双,三或模式尺寸分布,初级最大值范围为230-400μm,其中任选地对于双模或多模态频率分布,二次最大值小于25% 最大的最大值在400到1000之间。 制备所述颜料的方法在于通过在具有机械和化学防腐涂层的球磨机中悬浮高速研磨来处理有机混合相金红石结构氧化物颜料,直到所述晶粒尺寸和基本上等长的圆形颗粒形状 达到了。 根据本发明,还提供了用于颜料的粘度调节和表面调节的方法。 本发明的颜料与现有技术不同,通过改进的亮度,低白度或低亮度,相对高的色相饱和度以及迄今为止在所述类别的产品中不可获得的非常高的覆盖功率,并且相对于已知的细小颜料显示出低的光活性, 颗粒金红石。 在实践中没有磨蚀性,也没有观察到可能研磨残留物与应用基质的相互作用。