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Phase change ink composition and conductive pattern formed from the composition

A phase change ink and composition technology, which is applied to inks, conductive materials dispersed in non-conductive inorganic materials, household appliances, etc., can solve the problems of inability to mix polar additives, only dissolve, phase separation, etc. Storage stability, anti-settling effect

Active Publication Date: 2016-05-25
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the wax component as the main component of the ink composition is mostly non-polar, insoluble in water, and can only be dissolved in non-polar solvents
Therefore, in the case where polar additives used in general inks are added to the ink composition, the polar additives may not be well mixed, possibly causing phase separation

Method used

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  • Phase change ink composition and conductive pattern formed from the composition

Examples

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Embodiment

[0055] Hereinafter, to help understand the present invention, preferred embodiments will be provided. However, these embodiments are provided for easier understanding of the present invention, and should not be construed as limiting the scope of the present invention described herein.

[0056] 1. Preparation of ink composition

preparation example 1-E1

[0058] 50g of ethylene glycol (boiling point of 197°C) solution containing 50wt% of silver nanoparticles covered with polyvinylpyrrolidone (synthesized by polyol synthesis) and 25g of dimethyl sulfone were mixed to prepare a mixture, and the prepared mixture Put it into a nitrogen-circulating flask and heat to 200°C while stirring with a magnetic bar. At this time, the dimethyl sulfone is melted and uniformly mixed with the solution containing silver nanoparticles. As the heating continues, ethylene glycol (which is a relatively low boiling solvent originally contained in the solution containing silver nanoparticles) is evaporated. Continue heating for 1 hour to prepare a composition containing about 25 g of silver nanoparticles, about 25 g of dimethyl sulfone and other materials. 100 parts by weight of the prepared ink composition consisted of 45 parts by weight of silver nanoparticles adsorbed with polyvinylpyrrolidone, 3 parts by weight of polyvinylpyrrolidone, and 52 parts...

preparation example 2-E2

[0060] A centrifugal process was performed on a dispersion containing silver nanoparticles (synthesized by polyol synthesis) covered with polyvinylpyrrolidone to prepare 25 g of silver paste. The obtained silver paste was mixed with 55 g of sulfolane to prepare a mixture, and then the prepared mixture was put into a flask in which nitrogen gas was flowed, and heated to 150° C. while stirring with a magnetic bar. 100 parts by weight of the prepared ink composition consisted of 32 parts by weight of silver nanoparticles, 2 parts by weight of polyvinylpyrrolidone, and 66 parts by weight of sulfolane. The ink composition is cured at about 25°C and is liquid or semi-solid at room temperature.

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Abstract

A phase change ink composition includes metal nanoparticles, a dispersing agent allowing the metal nanoparticles to be stably dispersed and arranged within the phase change ink composition, and a solvent in which the metal nanoparticles and the dispersing agent are mixed and which comprises at least two sulfur-containing compounds, wherein the phase change ink composition has a melting temperature ranging from 60 degrees Celsius to 90 degrees Celsius.

Description

Technical field [0001] The present invention relates to a phase change ink composition and a conductive pattern formed using the composition. More specifically, the invention relates to a phase change ink composition and a conductive pattern formed using the composition. The phase change ink The composition has a relatively low melting temperature of 60°C to 90°C, allowing the use of typical inkjet heads. Background technique [0002] Photolithographic imaging utilizing photolithography processes has been widely used as a conventional method for forming conductive patterns. However, photolithography imaging has complex process steps that result in relatively high costs, and can discharge harmful gases and wastewater formed during the exposure and etching processes, leading to environmental pollution. Therefore, research has been conducted on low-cost, environmentally friendly pattern forming methods, and among these methods, a representative example is the inkjet printing m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/30C09D11/52
CPCC09D11/00C09D11/34H01B1/22
Inventor 金俊衡
Owner LG CHEM LTD