Colored photosensitive resin composition suitable for cylinderical separator and black substrate
A technology of resin composition and photosensitive resin, which is applied in the field of columnar spacers, can solve problems such as uneven brightness, and achieve the effect of good exposure limit and development limit
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preparation example 1
[0106] Preparation Example 1: Preparation of Copolymer
[0107] In a 500-ml round-bottomed flask equipped with a reflux condenser and a stirrer, add 100 grams of monomer mixtures shown in Table 1 in quantitative proportions, 300 grams of PGMEA as a solvent, and 2 grams of 2 as a radical polymerization initiator, 2'-Azobis(2,4-dimethylvaleronitrile). The temperature was raised to 70°C, and the mixture was stirred for 5 hours to carry out polymerization to produce a copolymer. The copolymer thus obtained had an acid value of 80 mgKOH / g and a polystyrene-referenced weight average molecular weight (Mw) of 11,000 as measured by gel permeation chromatography.
[0108] Table 1 shows the amount and weight average molecular weight of each constituent unit of the copolymer.
[0109] [Table 1]
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[0111]
preparation Embodiment 2
[0112] Preparation Example 2: Derived from an epoxy resin compound having a xanthene skeleton structure
[0113] 125.4 grams of spiro[fluorene-9,9'-xanthene]-3',6'-diol and 0.1386 grams of t-butylammonium bromide were placed in a 3000 ml round bottom flask and mixed. 78.6 g of epichlorohydrin was further added thereto, and the mixture was heated to 90° C. to react. After the complete consumption of spiro[fluorene-9,9'-xanthene]-3',6'-diol was determined by liquid chromatography analysis, the reactant was cooled to 30°C, and 50% NaOH aqueous solution was added slowly (3 equivalents). After complete consumption of epichlorohydrin was confirmed by liquid chromatography analysis, the reaction was extracted with dichloromethane and washed three times. The organic layer was dried using magnesium sulfate, and dichloromethane was distilled off under reduced pressure. The crude product was recrystallized with dichloromethane / methanol (50:50, V / V) mixture solvent.
[0114] 0.004 equ...
preparation Embodiment 3
[0116] Preparation Example 3: Preparation of Colored Dispersion
[0117] The components were mixed in the amounts shown in Table 2 below. In this case, the copolymer obtained in Preparation Example 1 was used as the copolymer of BASF company, lactam black (Black 582) was used as the organic black, and the polymer dispersant (DISPERBYK-2000) was used as the dispersant and PGMEA were used as solvents. The mixture thus obtained was dispersed in a paint shaker at 25-60°C. The dispersion step was performed using 0.3 mm zircon beads. After the dispersing step is complete, the beads are separated from the dispersion, thereby producing colored dispersions A-C, respectively.
[0118] [Table 2]
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