METHOD FOR PRODUCING PIGMENT DISPERSION FOR COLOR FILTER

PROBLEM TO BE SOLVED: To provide a method for producing a pigment dispersion for color filters, obtaining a cured film excellent in contrast and low viscosity, and a colored composition for color filters, containing the pigment dispersion, obtained by the method.SOLUTION: The method for manufacturin...

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1. Verfasser:	NOMOTO SHOGO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PHYSICS POLISHES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing a pigment dispersion for color filters, obtaining a cured film excellent in contrast and low viscosity, and a colored composition for color filters, containing the pigment dispersion, obtained by the method.SOLUTION: The method for manufacturing a pigment dispersion for color filters, includes a step (1) of mixing (A) a polymer dispersant comprising a component unit originating from (meth)acrylates and an amido group and having an amine value of 1 mgKOH/g or less with (B) organic pigments in an ester-based organic solvent (C), and a step (2) of adding and dispersing tetraalkylammonium salt (D).