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Ink composition

A composition and ink technology, applied in the direction of ink, application, electrical components, etc., can solve the problem of not grasping the way of accumulation phenomenon of ink composition, and achieve the effect of inhibiting accumulation phenomenon

Pending Publication Date: 2021-05-07
NISSAN CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, the ink composition is composed only of the liquid carrier and the conductive substance, and it is not intended to suppress the accumulation phenomenon in the ink composition to which additional components are added as described above.
[0014] That is, there is currently no known method for suppressing the accumulation phenomenon of an ink composition to which an additional component is added for the purpose of improving the characteristics of a charge-transporting film or an organic EL element, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0485] The meanings of the abbreviations used in the following examples are as follows.

[0486] MMA: methyl methacrylate

[0487] HEMA: 2-Hydroxyethyl methacrylate

[0488] HPMA: 4-Hydroxyphenyl methacrylate

[0489] HPMA-QD: A compound synthesized by the condensation reaction of 1 mol of 4-hydroxyphenyl methacrylate and 1.1 mol of 1,2-naphthoquinone-2-diazido-5-sulfonyl chloride

[0490] CHMI: N-Cyclohexylmaleimide

[0491] PFHMA: 2-(perfluorohexyl)ethyl methacrylate

[0492] MAA: methacrylic acid

[0493] AIBN: α,α'-Azobisisobutyronitrile

[0494] QD1: Pass 1mol of α,α,α'-tris(4-hydroxyphenyl)-1-ethyl-4-isopropylbenzene and 1.5mol of 1,2-naphthoquinone-2-diazide-5 Compounds synthesized by the condensation reaction of sulfonyl chloride

[0495] GT-401: Butanetetracarboxylic acid tetrakis(3,4-epoxycyclohexylmethyl)-modified ε-caprolactone (trade name: EPOLEADGT-401 (manufactured by Daicel Corporation))

[0496] PGME: Propylene Glycol Monomethyl Ether

[0497] PGMEA: ...

manufacture example 1

[0508] Preparation of S-poly(3-MEET)amine adduct

[0509] 500 g of an aqueous dispersion of S-poly(3-MEET) (0.598% solids in water) was mixed with 0.858 g of triethylamine, and the resulting mixture was evaporated by rotary evaporation to dry and solidify. The resulting residue was then further dried overnight in a vacuum oven at 50° C. to obtain 3.8 g of S-poly(3-MEET)amine adduct as a black powder product.

manufacture example 2

[0511] 2.00 g of the S-poly(3-MEET) amine adduct obtained in Production Example 1 was dissolved in 100 mL of 28% ammonia water (manufactured by Junsei Chemical Co., Ltd.), and the resulting solution was stirred overnight at room temperature. The obtained reaction mixture was subjected to reprecipitation treatment with 1500 mL of acetone, and the precipitate was recovered by filtration. The obtained precipitate was dissolved again in 20 mL of water and 7.59 g of triethylamine (manufactured by Tokyo Chemical Industry Co., Ltd.), and stirred at 60° C. for 1 hour. After cooling the obtained reaction mixture, reprecipitation treatment was performed with a mixed solvent of 1000 mL of isopropanol and 500 mL of acetone, and the precipitate was collected by filtration. The obtained precipitate was vacuum-dried at 0 mmHg and 50° C. for 1 hour to obtain 1.30 g of S-poly(3-MEET)-A as a charge-transporting substance treated with ammonia water.

[0512] [2] Preparation of charge transport ...

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Abstract

The present invention relates to an ink composition which contains: (a) a charge transport substance; (b) one or more kinds of metal oxide nanoparticles; and (c) a liquid carrier which contains (c-1) a first hydrophilic glycol-based solvent having a boiling point bp1 (DEG C), (c-2) a second hydrophilic glycol-based solvent having a boiling point bp2 (DEG C) and (c-3) an organic solvent having a boiling point bp3 (DEG C), and which satisfies bp1 < bp3 < bp2.

Description

technical field [0001] The present invention relates to an ink composition comprising a charge-transporting substance, metal oxide nanoparticles, and a liquid carrier having a predetermined composition. Background technique [0002] In energy-saving devices such as organic light-emitting diodes (OLEDs), polymer light-emitting diodes (PLEDs), phosphorescent organic light-emitting diodes (PHOLEDs), and organic power generation devices (OPVs), although useful progress has been made, further research is still needed. Improvements to provide better material processing and / or device performance for commercialization. For example, among materials used in organic electronic devices, conductive polymers such as those comprising polythiophenes are a promising class. However, problems can arise due to the purity, processability and instability of the polymers in their neutral and / or conductive state. In addition, the solubility of polymers used in alternately overlapping layers of va...

Claims

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Application Information

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IPC IPC(8): C09D11/52H01L51/50
CPCC09D11/52C09D11/36C09D11/102C09D11/38H10K71/135C09D11/033C09D11/10H10K50/00
Inventor 柴田知佳东将之菅野裕太
Owner NISSAN CHEM IND LTD
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