COLORING COMPOSITION FOR COLOR FILTER, AND COLOR FILTER

• Main Authors: IIDA YUSUKE, SUNAHARA KENRO, MATSUSHITA NATSUKO, MIKAMI JOSHI, IWASAKI MARI
• Format: Patent
• Language: English; Japanese
• Published: 15.01.2015
• Subjects: 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

PROBLEM TO BE SOLVED: To provide a coloring composition for a color filter which is excellent in dispersibility, flowability, storage stability, and developability.SOLUTION: A coloring composition for a color filter contains a polyester dispersant (X), a pigment, a binder resin, an active energy ray curable monomer, an active energy ray polymerization initiator, and a solvent. The polyester dispersant (X) is obtained by reacting a hydroxyl group in polyol, which is obtained by radical polymerization of an ethylenically unsaturated monomer containing an ethylenically unsaturated monomer having an ether group in the presence of a compound having two hydroxyl groups and one thiol group in the molecule, and contains a vinyl polymer having two hydroxyl groups in one terminal region, with an acid anhydride group of a tricarboxylic acid anhydride and/or a tetracarboxylic acid anhydride. 【課題】分散性、流動性、及び保存安定性に優れ、更には現像性にも優れたカラーフィルタ用着色組成物カラーフィルタの提供。【解決手段】分子内に２つの水酸基と１つのチオール基とを有する化合物の存在下、エーテル基を有するエチレン性不飽和単量体を含むエチレン性不飽和単量体をラジカル重合してなる、片末端領域に２つの水酸基を有するビニル重合体を含むポリオール中の水酸基と、トリカルボン酸無水物及び／又はテトラカルボン酸二無水物の酸無水物基と、を反応させてなるポリエステル分散剤（Ｘ）、顔料、バインダー樹脂、活性エネルギー線硬化性単量体、活性エネルギー線重合開始剤、及び溶剤を含有してなるカラーフィルタ用着色組成物によって解決。【選択図】なし