Method for producing color filter
A manufacturing method and color filter technology, which can be applied in the directions of instruments, filters, printing, etc., can solve the problem of not satisfying heat resistance, etc., and achieve the effects of excellent heat resistance, good practicability and excellent photopolymerization.
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manufacture example -1
[0077] Production Example-1 (Preparation of Amino Resin Having Carboxyl Group)
[0078] In a four-necked flask equipped with a thermometer, a reflux condenser and a stirrer, add 131.7 parts of 2-(4,6-diamino-1,3,5-triazin-2-yl) benzoic acid containing 12.3% water, 202.8 parts of 37% formaldehyde aqueous solution and 222.3 parts of n-butanol were immersed in an oil bath previously heated to 115° C. while stirring. After 15 minutes it became a homogeneous solution and started to reflux. After continuing to react for 2 hours, at 5.33×10 4 Under reduced pressure of Pa, water and excess formaldehyde were distilled off over 3 hours.
[0079] Next, after distilling off water and n-butanol, add propylene glycol monomethyl ether acetate (hereinafter abbreviated as PGMAc), cool, and then add PGMAc, according to the weight of the residual resin after non-volatile matter (107.5°C, 1 hour drying) %) 40.0% to be adjusted. An amino resin (A-1) having a carboxyl group with an acid value (...
manufacture example -2
[0080] Production Example-2 (Preparation of Amino Resin Having Carboxyl Group)
[0081] Add 37.4 parts of benzoguanamine, 118.4 parts of 50% glyoxylic acid aqueous solution, and 88.8 parts of n-butanol into a four-necked flask equipped with a thermometer, a reflux condenser and a stirrer. in the oil bath. After 15 minutes it became a homogeneous solution. Start reflow. After continuing to react for 1 hour, at 5.33×10 4 Under a reduced pressure of Pa, water was distilled off over 4 hours. Next, after distilling off water and n-butanol, PGMAc was added, cooled, and PGMAc was added to adjust to 40.0% of non-volatile content. An amino resin (A-2) having a carboxyl group having an acid value of 136 mg KOH / g in the resin solid content was obtained. The number average molecular weight in terms of polystyrene: Mn was 1624, and the degree of dispersion: Mw / Mn was 1.28.
manufacture example -3
[0082] Production Example-3 (Preparation of Amino Resin Having Phenolic Hydroxyl Group)
[0083] Add 18.7 parts of benzoguanamine, 48.8 parts of p-hydroxybenzaldehyde, and 88.8 parts of n-butanol into a four-necked flask equipped with a thermometer, a reflux condenser and a stirrer. in the bath. After 20 minutes it became a homogeneous solution. The reaction was continued at the same temperature for 24 hours. After reaction, at 5.33×10 4 The n-butanol was distilled off under a reduced pressure of Pa, and then the obtained solid was washed with a mixed solution of n-hexane / ethyl acetate (2 / 1) to remove excess p-hydroxybenzaldehyde. Add PGMAc and allow to cool. Add PGMAc to adjust to 40.0% non-volatile content. An amino resin (A-3) having a phenolic hydroxyl group having an acid value of 85.2 mg KOH / g in the resin solid content was obtained. The number average molecular weight in terms of polystyrene: Mn was 4000, and the degree of dispersion: Mw / Mn was 3.26.
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