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    • 15. 发明授权
    • Process for producing quinacridone pigment microcrystals
    • 制备喹吖啶酮颜料微晶的方法
    • US06818053B2
    • 2004-11-16
    • US10380176
    • 2003-03-13
    • Hitoshi KasaiHachiro NakanishiKunio Arai
    • Hitoshi KasaiHachiro NakanishiKunio Arai
    • C09B6752
    • C09B67/0027C09B67/0096Y02P20/544
    • The method for preparation quinacridone pigment nanocrystals with sub micrometer to nanometer in average size comprising, supplying supercritical or semi-critical liquid, which dissolves quinacridone pigment, into a specimen tube (ST) composing a reactor possessing a filter of desired opening to the upper stream side and to the down stream side in which quinacridone pigment is set up, flowing out the supercritical or semi-critical liquid in which quinacridone pigment is dissolved from said reactor to a mixing apparatus to which coolant is supplied, and by selecting the kind of supercritical of semi-critical liquid and combination of conditions e.g. supplying speed of each liquids, temperature of the liquid and the reacting pressure.
    • 制备具有亚微米至纳米平均尺寸的喹吖啶酮颜料纳米晶体的方法,其包括将构成具有所需开口的过滤器的反应器的标准管(ST)供应至超临界或半临界液体,所述超临界或半临界液体将喹吖啶酮颜料溶解到上流 侧面和下游侧,其中形成喹吖啶酮颜料,将其中将喹吖啶酮颜料溶解的超临界或半临界液体从所述反应器流出到供应冷却剂的混合装置,并通过选择超临界的种类 的半临界液体和条件的组合例如 提供液体的速度,液体的温度和反应压力。