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Thermosetting composition, cured film and display device

A thermosetting and composite technology, applied in nonlinear optics, optics, instruments, etc., can solve the problems of low gas production, flatness, and non-discovery, and achieve excellent low gas production, excellent electrical reliability, and transparency excellent effect

Pending Publication Date: 2019-07-05
NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As a material for a protective film of a color filter, a large number of epoxy-based or acrylic-based compound compositions have been proposed (Patent Document 1 to Patent Document 5, etc.), but no material that satisfies low outgassing and flatness at the same time has been found. Materials with demanding properties

Method used

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  • Thermosetting composition, cured film and display device
  • Thermosetting composition, cured film and display device
  • Thermosetting composition, cured film and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0083] Hereinafter, although embodiment of this invention is demonstrated concretely based on an Example and a comparative example, this invention is not limited to these.

Synthetic example 1

[0085] In the reaction vessel that can carry out decompression reaction with stirring device, condenser, oil-water separation pipe, drop into 9,9-two (4-hydroxynaphthyl) fluorene 451 mass parts, epichlorohydrin 555 mass parts, after dissolving completely, After reducing the pressure in the system to 20 kPa and 73° C., 129.2 parts by mass of a 49% NaOH aqueous solution was added dropwise over 3 hours. During the reaction, the reaction is carried out under the condition of reflux, and the water distilled from the reflux is separated from the epichlorohydrin by using the oil-water separation tube, and the epichlorohydrin is returned to the reaction vessel, and the water is removed to the outside of the system for the reaction. After completion of the reaction, epichlorohydrin was distilled off and dissolved in 600 parts by mass of toluene. After removing the salt generated thereafter and further washing with water, 36.5 parts by mass of a 49% NaOH solution and 14.5 parts by mass ...

Synthetic example 2

[0087] In Synthesis Example 1, 350 parts by mass of 9,9-bis(4-hydroxyphenyl)fluorene was used instead of 451 parts by mass of 9,9-bis(4-hydroxynaphthyl)fluorene. The epoxy compound (A)-2 was obtained by similarly reacting and refining. The epoxy equivalent of the obtained resin was 257 g / eq.

[0088] (Production of Thermosetting Composition)

[0089] It prepared according to the composition shown in Table 1-Table 5, stirred and mixed at room temperature for 3 hours, and dissolved the solid content in the solvent, and produced the thermosetting composition. It describes so that the numerical value of a composition shall be mass parts, and the total of solid content shall be 100 mass parts. In the solid content, there are also components synthesized in the state of being dissolved in the solvent (propylene glycol monomethyl ether acetate) at the beginning. Described as being included in parts by mass of the solvent. The components used in the preparation of the examples are ...

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Abstract

Provided is a thermosetting composition capable of forming a protective film excellent in flatness, heat resistance, chemical resistance, adhesion, hardness, electrical reliability and transparency, acured film and a display device. The thermosetting composition comprises an epoxy compound (A) having an average value of m of from 0 to 1 and represented by the following general formula (1), a liquid epoxy compound (B) being liquid at room temperature, an epoxy compound (C) that has a weight-average molecular weight of 900 to 20000 other than (A) or (B) and an epoxy equivalent of 150~500g / eq, acuring agent (D) selected from the group consisting of polybasic carboxylic acid, anhydride thereof, thermally decomposable ester of the polybasic carboxylic acid, and a curing accelerant. (In the formula (1), Ar represents a divalent aromatic hydrocarbon group having 6 to 12 carbon atoms, a part of the hydrogen atoms of the divalent aromatic hydrocarbon group may be substituted with a hydrocarbon group having 1 to 10 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or a halogen group.

Description

technical field [0001] The present invention relates to a thermosetting composition, a cured film obtained by curing the composition, and a display device having the cured film. Background technique [0002] Conventionally, a transparent cured film (hereinafter also referred to as a protective film) as a protective layer is formed on the surface of a color filter used in the manufacture of a color liquid crystal display (LCD). The protective film of the color filter can be formed for the following purposes: to flatten the unevenness generated between the pixels of the color filter, to improve the durability of the color filter to heat treatment or chemical treatment in the post-process, to improve the color LCD reliability, etc. A protective film for a color filter is required to be excellent in flatness, heat resistance, chemical resistance, adhesion, hardness, electrical reliability, and transparency. [0003] For example, as flatness, it is required to flatten the uneve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004G02F1/1335
CPCG03F7/004G02F1/1335C08G59/42C08G59/245G02F1/133305G02F1/133519
Inventor 今野高志八乙女庆
Owner NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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