Active energy ray curable resin composition, and display element spacer and/or color filter protective film using same
An active energy ray, curable resin technology, used in optical filters, optical components, nonlinear optics, etc., can solve problems such as poor elastic recovery rate, spacers for display components, and undocumented color filter protective films. Achieve the effects of excellent toughness, excellent developability and high radiation sensitivity
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Embodiment 1-1～1-3
[0164] [Preparation of reactive polycarboxylic acid compound (A)]
[0165] Add NC-6300H (manufactured by Nippon Kayaku; general formula (1) n=0 (64%), n=1 (23%), n=2 as the epoxy resin (a) in the amount recorded in Table 1 Above (13%); epoxy equivalent 230g / eq), add acrylic acid (abbreviated as AA, Mw=72) as compound (b) with the amount recorded in Table 1, add as compound (c) with the amount recorded in Table 1 ) of dimethylolpropionic acid (DMPA for short, Mw=134). Add 3 g of triphenylphosphine as a catalyst, and add propylene glycol monomethyl ether monoacetate as a solvent so that the solid content becomes 80% by weight of the reaction solution, and react at 100° C. for 24 hours to obtain a reactive epoxy carboxylate. Compound (E) Solution. The next reaction was performed with a solid content acid value (AV: mgKOH / g) of 5 or less as the reaction end point. In the acid value measurement, it measures with a reaction solution, and converts it into the acid value of a solid...
Embodiment 2-1
[0190] In the solution containing the reaction product obtained in the amount equivalent to 100 parts by weight (solid content) of Example 1-1 as a reactive polycarboxylic acid compound (A), add (B- 1) 100 parts by weight, 10 parts by weight of (C-1) as a photopolymerization initiator (C), and adding PGMEA and DEGDM as an organic solvent to achieve a desired solid content concentration, and mixing as a surfactant (H) This composition (S-1) was prepared by filtering 0.3 parts by weight of (H-1) through a membrane filter with a pore diameter of 0.2 μm. It should be noted that the values of the organic solvents in Table 2 are the mass ratios of PGMEA and DEGDM.
Embodiment 2-2～2-3 and comparative example 2-1～2-3
[0192] Except for setting the type and compounding amount of each component as shown in Table 2, the same operation was carried out as in Example 2-1, and the combinations of Examples 2-2 to 2-3 and Comparative Examples 2-1 to 2-3 were prepared. thing. It should be noted that the values of the organic solvents in Table 2 are the mass ratios of PGMEA and DEGDM.
[0193] Table 2
[0194]
[0195]
[0196] The following evaluations were performed about the compositions of Examples 2-1 to 2-3 and Comparative Examples 2-1 to 2-3, and the spacers formed of the coating films thereof. The evaluation results are shown in Table 3 together.
[0197] (viscosity)
[0198] The viscosity (mPa·s) of each composition in 25 degreeC was measured using the E-type viscometer (Toki Sangyo Co., Ltd. make, TV-200).
[0199] (solid content concentration)
[0200] Accurately weigh 0.3 g of the composition in an aluminum dish, add about 1 g of diethylene glycol dimethyl ether, and then dry i...
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