Additives and modifiers for solvent- and water-based metallic conductive inks
AssigneesApplied Nanotech Holdings, Inc., Ishihara Chemical Co., Ltd.
InventorsXueping Li, Yunjun Li, Peter B. Laxton, David Max Roundhill, Hidetoshi Arimura
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Abstract
A conductive ink includes metallic nanoparticles, a polymeric dispersant, and a solvent. The polymeric dispersant may be ionic, non-ionic, or any combination of ionic and non-ionic polymeric dispersants. The solvent may include water, an organic solvent, or any combination thereof. The conductive ink may include a stabilizing agent, an adhesion promoter, a surface tension modifier, a defoaming agent, a leveling additive, a rheology modifier, a wetting agent, an ionic strength modifier, or any combination thereof.
Claims2
A conductive ink comprising:
- about 15 wt % to about 65 wt % copper nanoparticles;
- a vehicle comprising:
- about 10 wt % to about 50 wt % water;
- about 40 wt % to about 60 wt % cyclohexanol;
- and
- an amount of isopropanol such that a ratio of water to isopropanol is between about 1:1 and about 1:2;
- and
- a dispersant.
A conductive ink comprising:
- about 15 wt % to about 65 wt % copper nanoparticles;
- a vehicle comprising:
- about 1.0 wt % to about 30 wt % water;
- about 20 wt % to about 80 wt % isobutanol;
- and
- an amount of isopropanol such that a ratio of water to isopropanol is between about 1:1 and about 1:2;
- and
- a dispersant.
Dependencies are inferred from the claim text.