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Silver particle coating composition

A technology of composition and silver particles, which is applied in the field of coating compositions containing silver particles, can solve the problems of undisclosed, inability to obtain sufficient electrical conductivity, etc., and achieve the effects of excellent adhesion, excellent electrical conductivity, and excellent drawing properties

Inactive Publication Date: 2017-05-24
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when firing at a low temperature (140° C.) using the conductive silver paste of the same publication, sufficient conductive performance cannot be obtained (paragraph [0046], Table 1)
In Japanese Patent Application Laid-Open No. 2012-38615, there is no disclosure about silver nanoparticles whose surface is coated with a protective agent containing aliphatic hydrocarbon amine.

Method used

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  • Silver particle coating composition
  • Silver particle coating composition
  • Silver particle coating composition

Examples

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Embodiment 1

[0227] (Preparation of silver nanoparticles)

[0228] 40.0 g (0.1317 mol) of silver oxalate was placed in a 500 mL flask, and 60 g of n-butanol was added thereto to prepare a n-butanol slurry of silver oxalate. An amine mixed solution of 115.58 g (1.5802 mol) of n-butylamine, 51.06 g (0.3950 mol) of 2-ethylhexylamine, and 17.02 g (0.1317 mol) of n-octylamine was added dropwise to this slurry at 30°C. After dripping, it stirred at 30 degreeC for 1 hour, and the complex formation reaction of silver oxalate and an amine advanced. After the silver oxalate-amine complex was formed, heating was performed at 110° C. to thermally decompose the silver oxalate-amine complex to obtain a suspension of dark blue silver nanoparticles suspended in the amine mixture.

[0229] The obtained suspension was cooled, 120 g of methanol was added thereto and stirred, and then, silver nanoparticles were precipitated by centrifugation, and the supernatant was removed. To the silver nanoparticles, 120...

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Abstract

The present invention provides a silver coating composition which exhibits excellent electrical conductivity as a result of being baked at a low temperature for a short time, excellent adhesive properties between a silver coating film (a baked silver film) and a substrate, and excellent fine line drawing properties. The silver particle coating composition includes: silver nanoparticles (N) which have had the surfaces thereof coated with a protective agent including an aliphatic hydrocarbon amine; a vinyl chloride-vinyl acetate copolymer resin; and a dispersion solvent. It is preferable that the coating composition further include silver microparticles (M). The silver particle coating composition is suitable for use in intaglio offset printing.

Description

technical field [0001] The present invention relates to a coating composition containing silver particles. The silver particle coating composition of the present invention is suitable for use in gravure offset printing (Intaglio Offset Printing) such as gravure offset printing (Gravure Offset Printing). In addition, the present invention is also applicable to a coating composition containing metal particles containing metals other than silver. Background technique [0002] Silver nanoparticles can be sintered even at low temperatures. Utilizing this property, in the manufacture of various electronic components, in order to form electrodes or conductive circuit patterns on a substrate, a silver paint composition containing silver nanoparticles can be used. Silver nanoparticles are usually dispersed in organic solvents. Silver nanoparticles have an average primary particle diameter of about several nm to several tens of nm, and the surface thereof is usually coated with an ...

Claims

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Application Information

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IPC IPC(8): C09D127/06B22F1/00B22F1/02B82Y30/00C09D5/24C09D7/12C09D11/106C09D11/52H01B1/00H01B1/22B22F1/102
CPCB22F1/00B82Y30/00C09D5/24C09D11/106C09D11/52C09D127/06H01B1/00H01B1/22C09D7/40B22F1/102C09D7/62C09D7/20C08K9/04C08K3/08C08K5/17C08K5/10C08K2003/0806
Inventor 小妻宏祯
Owner DAICEL CHEM IND LTD
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