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Ink for production of electronic device

A technology for electronic equipment and ink, applied in the field of ink for electronic equipment manufacturing, can solve the problems of low thermal decomposition of ethyl cellulose, residual carbon content, reduced conductivity, etc. amount of effect

Pending Publication Date: 2020-11-13
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ethyl cellulose has the following problems due to its low thermal decomposability: it needs to be fired at high temperature, and due to long-term exposure to high temperature, the object to be coated may soften and deform; Components remain in the form of ash, which causes a decrease in electrical conductivity
However, even with polyvinyl acetal resins, results that are sufficiently satisfactory for these problems cannot be obtained

Method used

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  • Ink for production of electronic device
  • Ink for production of electronic device
  • Ink for production of electronic device

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0116] Production Example 1

[0117] Methyl behenate (20.0 g, 56.4 mmol) and ethylenediamine (16.9 g, 281 mmol) were stirred at 110° C. for 18 hours, and the reactant was washed with methanol, followed by filtration. The filtrate was subjected to solvent distillation, and the obtained residue was purified by recrystallization using hexane. N-Docosylethylenediamine was obtained as white crystals (yield 65%, 14.0 g, 36.7 mmol).

[0118] In N-dimethylformamide (40ml) solution, spent 10 minutes to add N-docosylethylenediamine (12.0g, 31.4mmol) and triethylamine (6.35g, 62.8mmol), succinic anhydride ( 3.45 g, 34.5 mmol), stirred at 100° C. for 15 minutes. After dissolving succinic anhydride, acetic anhydride (4.81 g, 47.1 mmol) was added dropwise to the crude reaction liquid over 10 minutes, followed by stirring at 100° C. for 1 hour. The reaction mixture was poured into water (200 ml), and the precipitate was filtered and washed with water. The precipitate was purified by rec...

preparation example 2

[0125] Production Example 2

[0126] N-Docosylaminoethylsuccinimide was obtained in the same manner as in Production Example 1.

[0127] The obtained N-docosylaminoethylsuccinimide (8.00 g, 17.2 mmol) and hexamethylenediamine (10.0 g, 86.1 mmol) were stirred at 120° C. for 18 hours. The reaction mixture was poured into methanol, and the precipitate was filtered and washed with methanol. The resulting solid was purified using acetonitrile, methanol and by recrystallization. N-(behenylaminoethyl)aminosuccinamidoylaminohexylamine was obtained as a white crystalline powder (yield 69%, 6.91 g, 11.9 mmol).

[0128] Dissolve N-(docosylaminoethyl)aminosuccinamidoylaminohexylamine (3.25g, 5.59mmol), 37% aqueous formaldehyde (2.73ml) and formic acid (1.55g, 33.7mmol) in 2-propane Alcohol (15ml), stirred at 100°C for 4 hours. The reaction mixture was poured into 1M aqueous sodium hydroxide solution (20 ml) and the crystals were filtered. The obtained crystals were recrystallized wi...

preparation example 3

[0134] Production Example 3

[0135] Methyl eicosanoate (18.0 g, 55.1 mmol) and ethylenediamine (16.5 g, 276 mmol) were stirred at 110° C. for 18 hours, and the reactant was washed with methanol, followed by filtration. The filtrate was subjected to solvent distillation, and the obtained residue was purified by recrystallization using hexane. N-eicosylethylenediamine was obtained as white crystals (yield 68%, 13.3 g, 37.5 mmol).

[0136] In N-dimethylformamide (30ml) solution, spent 10 minutes to add N-eicosylethylenediamine (10.0g, 28.2mmol) and triethylamine (5.71g, 56.4mmol), succinic anhydride (3.10 g, 31.0 mmol), stirred at 100°C for 15 minutes. After dissolving succinic anhydride, acetic anhydride (4.32 g, 42.3 mmol) was added dropwise to the reaction crude liquid over 1 minute, followed by stirring at 100° C. for 1 hour. The reaction mixture was poured into water (150 ml), and the precipitate was filtered and washed with water. The precipitate was purified by recry...

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Abstract

Provided is an ink that has excellent printing precision, can be baked at low temperature, and has a very small amount of ash that is left after the baking of the ink. The ink according to the presentinvention contains a mutual solution of a compound represented by formula (1) and a fluidic organic substance. In formula (1), R1 represents a monovalent straight-chain aliphatic hydrocarbon group having 10-25 carbon atoms, R2 and R3, which are the same or different, each represent a divalent aliphatic hydrocarbon group having 2, 4, 6, or 8 carbon atoms, a divalent alicyclic hydrocarbon group having 6 carbon atoms, or a divalent aromatic hydrocarbon group, R4 represents a divalent aliphatic hydrocarbon group having 1-8 carbon atoms, and R5 and R6, which are the same or different, each represent a monovalent aliphatic hydrocarbon group having 1-3 carbon atoms or a hydroxyalkyl ether group. L1-L3 each represents an amide bond, and in the case where L1 and L3 are -CONH-, L2 is -NHCO-, and inthe case where L1 and L3 are -NHCO-, L2 is -CONH-.

Description

technical field [0001] The present invention relates to an ink for forming wiring and / or electrodes and the like by a printing method in the manufacture of electronic devices. This application claims the priority of Japanese Patent Application No. 2018-069677 for which it applied to Japan on March 30, 2018, and uses the content here. Background technique [0002] Electronic devices manufactured using printing methods include capacitors, inductors, varistors, thermistors, transistors, speakers, actuators, antennas, solid oxide fuel cells, and more. [0003] For example, multilayer ceramic capacitors are generally manufactured through the following steps. [0004] 1. A slurry containing ceramic powder, a binder resin such as polyvinyl acetal resin, and a solvent is formed into a sheet to obtain a green sheet. [0005] 2. Apply an ink containing an electrical characteristic imparting material (such as nickel, palladium, etc.), a binder resin (such as ethyl cellulose, etc.), a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09D11/033H05K1/09
CPCC09D11/03C09D11/033H05K1/09
Inventor 铃木阳二
Owner DAICEL CHEM IND LTD
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