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Active energy ray curable resin composition and spacer for display element and/or color filter protective film using same

An active energy ray, curable resin technology, used in optical filters, optical elements, nonlinear optics, etc., can solve the problem that the elastic recovery rate is not a satisfactory level, and achieve excellent developability and high radiation sensitivity. Excellent effect of strength and toughness

Active Publication Date: 2020-01-10
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that the elastic recovery rate required as a photo-spacer is not at a satisfactory level.

Method used

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  • Active energy ray curable resin composition and spacer for display element and/or color filter protective film using same
  • Active energy ray curable resin composition and spacer for display element and/or color filter protective film using same
  • Active energy ray curable resin composition and spacer for display element and/or color filter protective film using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1～1-20

[0158] Examples 1-1 to 1-20: Preparation of reactive polycarboxylic acid compound (A)

[0159] NC-3000H (manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 288 g / eq) and NC-2000 (manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 230 g) were added as epoxy resin (a) in the amount described in Table 1 / eq), EOCN-103S (manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 200g / eq), EPPN-201 (manufactured by Nippon Kayaku Co., Ltd., epoxy equivalent 190g / eq), added in the amount described in Table 1 Acrylic acid (abbreviated as AA, Mw=72) as compound (b), and dimethylolpropionic acid (abbreviated as DMPA, Mw=134) as compound (c) were added in the amount described in Table 1. 3 g of triphenylphosphine was added as a catalyst, and propylene glycol monomethyl ether monoacetate was added as a solvent so that the solid content became 80% by mass of the reaction liquid. React at 100°C for 24 hours to obtain a reactive epoxy carboxylate compound (E) solution. The nex...

Synthetic example 1

[0182] 7 parts by mass of 2,2'-azobis(2,4-dimethylvaleronitrile) and 200 parts by mass of diethylene glycol methyl ethyl ether were charged into a flask equipped with a condenser tube and a stirrer. Next, 5 parts by mass of styrene, 16 parts by mass of methacrylic acid, 34 parts by mass of tetrahydrodicyclopentadienyl methacrylate, 40 parts by mass of glycidyl methacrylate, α-methylstyrene two 3 parts by mass of the polymer were replaced with nitrogen, and then 5 parts by mass of 1,3-butadiene was added, and stirring was started slowly. The temperature of the solution was raised to 70°C, and the temperature was maintained for 5 hours to obtain a polymer solution containing the copolymer [G-1]. The solid content concentration of the obtained polymer solution was 33.1%, and the weight average molecular weight of the polymer was 10,000.

[0183]

[0184] H-1: Fluorine-containing surfactant (Neos Co., Ltd., Futhergent FTX-218)

[0185] H-2: Silicone surfactant (Toray Dow Corni...

Embodiment 2-1

[0190] (B-1 ) 100 parts by mass, 10 parts by mass of (C-3) as a photopolymerization initiator (C), and adding PGMEA and DEGDM as an organic solvent to achieve the desired solid content concentration, mixed as a surfactant (H) ( H-1) 0.3 parts by mass were filtered through a membrane filter with a pore diameter of 0.2 μm to prepare the composition (S-1). In addition, the numerical value of the organic solvent in Table 2 is the mass ratio of PGMEA and DEGDM.

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Abstract

The present invention relates to an active energy ray curable resin composition and a spacer for a display element and / or a color filter protective film using the composition. An object of the present invention is to provide a spacer for a display element and a color filter protective film excellent in heat resistance, heat-resistant transparency, flatness, flexibility, and toughness. Active energy ray-curable resin composition for a spacer for a display element or a protective film for a color filter, containing a reactive polyvalent carboxylic acid compound (A) and a reactive compound other than the reactive polycarboxylic acid compound (A) (B), a photopolymerization initiator (C) and an organic solvent (D), the reactive polycarboxylic acid compound (A) is an epoxy resin (a) having at least two or more epoxy groups in one molecule and a molecule The reaction product of a compound (b) having one or more polymerizable ethylenically unsaturated groups and one or more carboxyl groups and, if necessary, a compound (c) having at least two or more hydroxyl groups and one or more carboxyl groups in one molecule with A reactive polyvalent carboxylic acid compound (A) obtained by further reacting itaconic anhydride of the acid anhydride (d).

Description

technical field [0001] The present invention relates to an active energy ray-curable resin composition, a spacer for a display element, and / or a color filter protective film. Background technique [0002] As a material for a display device, a resin composition containing a binder polymer, a photopolymerizable monomer, a photopolymerization initiator, and the like has been used. In recent years, as materials for display devices (LCD, EL, PDP, FED (SED), rear projection displays, electronic paper or digital cameras, etc., especially display elements, display element peripheral materials), such as color liquid crystal display Devices (LCDs) are rapidly gaining popularity. Generally speaking, the structure of a color liquid crystal display device is: a color filter is opposed to an electrode substrate such as a TFT substrate and a gap of about 1 to about 10 μm is provided, a liquid crystal compound is filled in the gap, and the surrounding area is sealed. The material is seale...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/027G02F1/1339G02B1/10
CPCC08F2/46C08F220/06C08F220/18C08F220/32C08F222/04C08F222/1006C08G59/14C08F220/281C08F220/325C08F220/343G02B5/20G02F1/0107
Inventor 小木聪小渊香津美堀口尚文山本和义
Owner NIPPON KAYAKU CO LTD
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