发明名称 |
PROCESS FOR PRODUCING QUINACRIDONE PIGMENT MICROCRYSTALS |
摘要 |
<p>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 or semi-critical liquid and combination of conditions e.g. supplying speed of each liquids, temperature of the liquid and the reacting pressure. <IMAGE></p> |
申请公布号 |
EP1388573(A1) |
申请公布日期 |
2004.02.11 |
申请号 |
EP20010274235 |
申请日期 |
2001.11.28 |
申请人 |
JAPAN SCIENCE AND TECHNOLOGY CORPORATION |
发明人 |
KASAI, HITOSHI;NAKANISHI, HACHIRO;ARAI, KUNIO |
分类号 |
C09B67/52;C09B67/54;(IPC1-7):C09B67/52;C09B67/00 |
主分类号 |
C09B67/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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