NON-AQUEOUS SILVER-CONTAINING DISPERSIONS
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United States of America Patent
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Mar 28, 2019
app pub date -
Sep 25, 2017
filing date -
Sep 25, 2017
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Abstract
A non-aqueous silver-containing dispersion is prepared containing a silver nanoparticle composite comprising silver and a cellulosic polymers so that the silver nanoparticle composite is present at a weight ratio to a cellulosic polymers of at least 5:1 and up to and including 50:1. This dispersion also contains an organic solvent that has a boiling point, at atmospheric pressure, of 100° C. to 500° C. The Hansen parameter (δTPolymer) of the cellulosic polymer is less than or equal to the Hansen parameter (δTSolvent) of the organic solvent. A nitrogenous base having a pKa in acetonitrile of 15 to 25 at 25° C. is also present in an equimolar amount or molar excess in relation to the amount of silver.
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