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Thermosetting composition, hardened film, color filter sheet, liquid crystal display device, and touch screen device

A technology of thermosetting and composition, applied in the field of electronic parts, can solve the problems of low dielectric property and loss tangent that have not yet been developed, and achieve display quality and reliability improvement, high practicability, and low dielectric loss Tangent effect

Inactive Publication Date: 2018-01-26
JNC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the development of these polyimides, although several attempts have been made to achieve low dielectric constants, polyimides that satisfy the characteristics of low dielectric properties and low dielectric loss tangent and are resistant to practical use have not yet been developed. Amines, and polyimides that provide protective films with excellent transparency or heat resistance

Method used

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  • Thermosetting composition, hardened film, color filter sheet, liquid crystal display device, and touch screen device
  • Thermosetting composition, hardened film, color filter sheet, liquid crystal display device, and touch screen device
  • Thermosetting composition, hardened film, color filter sheet, liquid crystal display device, and touch screen device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0170] Next, the present invention will be specifically described by way of synthesis examples, examples, and comparative examples, but the present invention is not limited by these examples.

[0171] First, the solution of polyesteramic acid (A1) - polyesteramic acid (A4) and polyesteramic acid (A5) containing the reaction product of tetracarboxylic dianhydride, diamine, and polyhydric hydroxyl compound is synthesize|combined as follows.

Synthetic example A-1

[0172] [Synthesis Example A-1] Preparation of a Solution of Polyester Amic Acid (A1)

[0173] In a four-necked flask with a stirrer, dehydrated and purified methyl 3-methoxy propionate (methyl 3-methoxy propionate, hereinafter abbreviated as "MMP"), 3, 3', 3, 3', 4,4'-diphenylether tetracarboxylic dianhydride (3,3',4,4'-diphenylether tetracarboxylic dianhydride, hereinafter abbreviated as "ODPA"), 1,4-butanediol, and benzyl alcohol, Stirring was carried out at 125° C. for 2 hours under a stream of dry nitrogen (first stage of synthesis).

[0174]

[0175] Thereafter, the reaction solution was cooled to 25°C, and 3,3'-diaminodiphenyl sulfone (diaminodiphenyl sulfone, hereinafter abbreviated as "DDS") and MMP were added by the following weight, and the reaction was carried out at 20°C to 30°C. After stirring for 2 hours, stirring was performed at 125° C. for 1 hour (second stage of synthesis).

[0176] DDS 3.26g

[0177] MMP 21.00g

[0178] The solution was cooled to room...

Synthetic example A-2

[0179] [Synthesis Example A-2] Preparation of a Solution of Polyester Amic Acid (A2)

[0180] In a four-necked flask with a stirrer, dehydrated and purified propylene glycol monomethyl ether acetate (propylene glycol monomethyl ether acetate, hereinafter abbreviated as "PGMEA"), 1, 2, 3 , 4-butane tetracarboxylic dianhydride (1,2,3,4-butane tetracarboxylic dianhydride, hereinafter abbreviated as "BT-100"), SMA-1000P (trade name; styrene-maleic anhydride copolymer (Chuanyuan Petrochemical Co., Ltd.), 1,4-butanediol, and benzyl alcohol were stirred for 2 hours at 125° C. under a dry nitrogen stream (the first stage of synthesis).

[0181]

[0182] Thereafter, the reaction solution was cooled to 25° C., DDS and PGMEA were charged in the following weights, and stirred at 20° C. to 30° C. for 2 hours, and then at 125° C. for 1 hour (synthesis second stage).

[0183] DDS 1.20g

[0184] PGMEA 16.51g

[0185] The solution was cooled to room temperature to obtain a 30% by weight ...

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Abstract

The invention is to provide a hardened film, which has excellent transparency and heat resistance as protective film, and further is free of switching threshold deviation caused by specific electric characters of an LCD device, namely, no adverse influence is caused to display quality. The invention also provides: a composition for providing the hardened film, a color filter sheet including the hardened film, a liquid crystal display device including same, and a touch screen device. The problems are solved by means of the thermosetting composition and the hardened film prepared therefrom. Thethermosetting composition includes polyesteramide acid and an epoxy compound, wherein the polyesteramide acid is a reactant that includes tetracarboxylic dianhydrate, diamine and a poly-hydroxyl compound. The dielectric loss tangent of the hardened film formed from the thermosetting composition is lower than 0.007 under frequency of 20 Hz.

Description

technical field [0001] The present invention relates to a thermosetting composition used in liquid crystal display elements, etc., a cured film formed from the thermosetting composition, and a color filter, an insulating film, or a protective film using the cured film. A film, and an electronic component having the film. In more detail, the present invention relates to a thermosetting composition comprising polyester amic acid having excellent dielectric loss tangent, and the thermosetting composition formed by the thermosetting composition will not cause adverse effects on the switching performance of liquid crystals. A cured film affected, a color filter, an insulating film, or a protective film using the cured film, and an electronic component having the film. Background technique [0002] Liquid crystal display elements are widely used in computer terminal display devices, television image display devices, mobile communication devices, and the like. In the manufacturin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D179/08C09D163/00C09D7/63G02B1/14G02B5/20G02F1/1335
CPCC08G59/50C08G73/1014C08G73/16C08L63/00C08L79/08G02B5/20G02F1/13338G02F1/133514
Inventor 井本英之中原铁舟冈本优纪木村佑希
Owner JNC CORP