PARTICULATE OF WATER-INSOLUBLE COMPOUND AND DISPERSION MATTER OF THE SAME, METHOD FOR PRODUCING THEM, AND COLOR FILTER USING THEM

PROBLEM TO BE SOLVED: To provide a particulate of a water-insoluble compound excellent in aging stability and fastness and dispersion matter of the same, and to provide an effective production method for the same. SOLUTION: In mixing a solution, wherein the water-insoluble compound 1 is dissolved in...

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Hauptverfasser: MOROZUMI KAZUMA, MIYASHITA YOSUKE, AIMI KEITARO, SASAKI DAISUKE, FUJIMURA HIDETOSHI, YUMOTO MASATOSHI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a particulate of a water-insoluble compound excellent in aging stability and fastness and dispersion matter of the same, and to provide an effective production method for the same. SOLUTION: In mixing a solution, wherein the water-insoluble compound 1 is dissolved in a good solvent, with a poor solvent in a method for producing the particulate 10 embedding a dispersant 2, (i) both liquids are mixed while the dispersant 2 is contained in the good solvent side and/or the poor solvent side, or (ii) both solutions are mixed with a solution prepared separately from both solutions by dissolving the dispersant 2 in the good solvent. In the particulate 10 of the water-insoluble compound 1, at least 10 mass% of the dissolved dispersant 2 is embedded in the particulate 10, and crystallinity of the particulate in the dispersant is 65% or more. COPYRIGHT: (C)2010,JPO&INPIT