Method of making silver-containing dispersions

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United States of America Patent

PATENT NO 10444618
APP PUB NO 20190094679A1
SERIAL NO

15713777

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Abstract

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A method is used to prepare silver nanoparticles in the form of a silver nanoparticle cellulosic polymeric composite. A cellulosic polymer, organic solvent having a boiling point at atmospheric pressure of 100° C. to 500° C. and a Hansen parameter (δTPolymer) equal to or greater than that of the cellulosic polymer, and a nitrogenous base are mixed to form a premix solution. Upon heating the premix solution to a temperature of at least 75° C., a solution of reducible silver ions is added that is equimolar or less in relation to the nitrogenous base. The weight ratio of reducible silver ions to the cellulosic polymer is 5:1 to 50:1. The resulting silver nanoparticle composite is cooled, isolated, and re-dispersed in an organic solvent, providing a non-aqueous silver-containing dispersion comprising the silver nanoparticle cellulosic polymeric composite.

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Patent Owner(s)

Patent OwnerAddress
EASTMAN KODAK COMPANY343 STATE STREET PATENT LEGAL STAFF ROCHESTER NY 14650-0208

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Donovan, Kevin M Bergen, US 50 272
Klubek, Kevin P West Henrietta, US 52 2588
Shukla, Deepak Webster, US 183 2508

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