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公开(公告)号:US07192477B2
公开(公告)日:2007-03-20
申请号:US10525228
申请日:2003-04-02
申请人: Hachiro Nakanishi , Koich Baba , Hitoshi Kasai , Hidetoshi Oikawa , Shuji Oikawa
发明人: Hachiro Nakanishi , Koich Baba , Hitoshi Kasai , Hidetoshi Oikawa , Shuji Oikawa
CPC分类号: B01D9/0054 , B01J3/008 , C09B67/0014 , C09B67/0096 , C09B67/0097 , Y02P20/544
摘要: The process for producing highly concentrated nanometer-size fine particles of an organic pigment, which comprises dissolving the organic pigment in an amide solvent, especially an organic solvent comprising at least 50 vol % 1-methyl-2-pyrrodinone, and pouring the resultant organic pigment solution with stirring into a poor solvent which is not compatible with the organic pigment. The pigment may be a quinacridone pigment, phthalocyanine pigment etc. Any atmospheric pressure to a sub-critical and/or supercritical state can be employed as the production conditions.
摘要翻译: 用于生产有机颜料的高度浓缩的纳米尺寸微粒的方法,其包括将有机颜料溶解在酰胺溶剂中,特别是包含至少50体积%1-甲基-2-吡咯烷酮的有机溶剂中,并将所得有机颜料 颜料溶液搅拌成与有机颜料不相容的不良溶剂。 颜料可以是喹吖啶酮颜料,酞菁颜料等。作为生产条件,可以使用亚临界和/或超临界状态的任何大气压。