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    • 56. 发明授权
    • High-chroma C.I. Pigment Red 254 and process for producing the same
    • 高色度C.I. 颜料红254及其制备方法
    • US07837784B2
    • 2010-11-23
    • US12309413
    • 2007-07-11
    • Hirotsugu NemotoShousaburou TanakaTakashi Sato
    • Hirotsugu NemotoShousaburou TanakaTakashi Sato
    • C09B67/10C09B67/20C09B57/00
    • C09B67/003C09B57/004C09B67/0014
    • The present invention relates to C. I. Pigment Red 254 for coloring, which can color an object to be colored so as to have a higher chroma than that with conventional technology and a production method for easily producing it. For the purpose, the inventors provide the production method for the pigment, wherein the intersection of mass tone ΔH* and ΔC* of a color coating film in an acrylic-melamine coating test is, on X-Y coordinate plane to which the ΔH* is defined as the X-axis and the ΔC* is defined as the Y-axis, within the surrounded region determined by specific three equations; and a production method for the pigment provides the production method of the pigment, including a process of heating crude pigment at 100-130° C. for 2-10 hours in an aprotic polar organic solvent which is strongly alkaline.
    • 本发明涉及用于着色的C.I.颜料红254,其可以使待着色的物体着色以具有比常规技术更高的色度和用于容易地生产它的制备方法。 为此,本发明人提供了用于颜料的制造方法,其中丙烯酸 - 三聚氰胺涂层试验中彩色涂膜的质量色调& H *和&Dgr; C *在XY坐标平面上, &Dgr; H *被定义为X轴,并且&Dgr; C *被定义为在由特定三个方程确定的包围区域内的Y轴; 并且颜料的制备方法提供了颜料的制备方法,包括在强碱性的非质子极性有机溶剂中在100-130℃下加热粗颜料2-10小时的方法。