Lg Chem, Ltd

Soo Yeon Heo

Jong Taik Lee

Ji Young Hwang

Jiehyun Seong

Kyoung Su Jeon

In-Seok Hwang

Hyun Sik Kim

Seung-Heon Lee

Jung Park

Sang Ho Kim

Min Seo Kim

The present invention relates to a conductive metal ink composition, comprising: a first metal powder having conductivity; a non-aqueous solvent; an attachment improving agent; and a polymer coating property improving agent, and a method for forming a conductive pattern by using the conductive metal ink composition, and the conductive metal ink composition can be appropriately applied to a roll printing process and a conductive pattern exhibiting more improved conductivity and excellent attachment ability with respect to a board can be formed.

Conductive metal ink composition, and method for preparing a conductive pattern

An exemplary embodiment of the present invention relates to a conductive metal ink composition comprising a conductive metal powder; a non-aqueous solvent; an organo phosphate compound; and a polymer coating property improving agent, and a method for forming a conductive pattern by using the conductive metal ink composition.

Conductive metal ink composition, and method for forming a conductive pattern

Disclosed is ink for ink jet printing, which comprises: metal nanoparticles comprising a surfactant attached to surfaces thereof; and a first solvent, wherein the metal nanoparticles are present in an amount of 50&#x2dc;70 parts by weight based on 100 parts by weight of the ink, and the surfactant is present in an amount of 0.5&#x2dc;5 parts by weight based on 100 parts by weight of the metal nanoparticles. Metal nanoparticles used in the ink and a method for preparing the metal nanoparticles are also disclosed. The method for preparing metal nanoparticles for use in ink for ink jet printing comprises a step of washing surplus surfactant with at least one solvent. By doing so, the surplus surfactant remaining on the surfaces of the metal nanoparticles can be minimized, resulting in a drop in viscosity of ink comprising the metal nanoparticles. Therefore, even if the ink has a metal nanoparticle content of 50 wt % or more, the ink can satisfy a viscosity condition required for ink jet printing, and thus can form an electrode pattern with high conductivity.

Ink for ink jet printing and method for preparing metal nanoparticles used therein

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Daejeon, South Korea

Soo Yeon Heo