METHOD FOR PRODUCING SILVER NANOPARTICLES, SILVER NANOPARTICLES, AND SILVER COATING COMPOSITION
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United States of America Patent
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Issued Date -
Nov 27, 2014
app pub date -
Jan 7, 2013
filing date -
Jan 11, 2012
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Abandoned
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Abstract
The present invention provides silver nano-particles that are excellent in stability and develop excellent conductivity by low-temperature calcining, a producing method for same, and a silver coating composition comprising the silver nano-particles. A method for producing silver nano-particles comprising: preparing an amine mixture liquid comprising: an aliphatic hydrocarbon monoamine (A) comprising an aliphatic hydrocarbon group and one amino group, said aliphatic hydrocarbon group having 6 or more carbon atoms in total; and an aliphatic hydrocarbon monoamine (B) comprising an aliphatic hydrocarbon group and one amino group, said aliphatic hydrocarbon group having 5 or less carbon atoms in total, in a ratio wherein the amine (A) is 5 mol % or more and less than 20 mol % and the amine (B) is more than 80 mol % and 95 mol % or less, based on a total of the amine (A) and the amine (B); mixing a silver compound and the amine mixture liquid to form a complex compound comprising the silver compound and the amines; and thermally decomposing the complex compound by heating to form silver nano-particles.
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