SILVER-CONTAINING AQUEOUS INK FORMULATION FOR PRODUCING ELECTRICALLY CONDUCTIVE STRUCTURES, AND INK JET PRINTING METHOD FOR PRODUCING SUCH ELECTRICALLY CONDUCTIVE STRUCTURES
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United States of America Patent
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Issued Date -
Feb 5, 2015
app pub date -
Jun 13, 2012
filing date -
Jun 14, 2011
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a silver-containing aqueous ink formulation for production of electrically conductive structures, wherein the formulation is provided in the form of a two-component system composed of a vehicle component A at least comprising an organic solvent, additives and water, and a silver nanoparticle sol as component B, at least comprising a liquid dispersant, stabilized silver nanoparticles and an electrostatic dispersion stabilizer, and the formulation composed of components A and B comprises at least
- a) 1-50% by weight of organic solvent,b) 0.005-12% by weight of additives, andc) 40-70% by weight of water,andd) 15-50% by weight of electrostatically stabilized silver nanoparticles,where the sum of the total proportions in the ink formulation adds up to 100% by weight in each case. It further relates to a process for producing such ink formulations and to a process for producing electrically conductive structures and/or coatings on a substrate, and to the use of an inventive ink formulation as an ink for inkjet printers and/or for production of electrically conductive structures and coatings.
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