Patent ID: 9725614
Date: 2017-08-08
CPC Classifications: B22F,B82Y,C09D,H01B

Claim:
1. A conductive ink composition comprising: a plurality of stabilized metal-containing nanoparticles comprising silver or a silver alloy composite, wherein the silver or silver alloy composite is coated with a stabilizer comprising an organoamine present in an amount ranging from about 3 weight percent to about 60 weight percent including only the stabilized metal-containing nanoparticle and the stabilizer, at least one ink vehicle comprising an aliphatic hydrocarbon, two or more solvents having different evaporation rates, and a mixture of resins comprising terpene, polyvinyl alcohol derivative resins, polybutene, ethylene vinyl acetate-maleic anhydride terpolymers, and at least one other resin comprising styrene block copolymers, ethylene-vinyl acetate copolymers, ethylene butyl acrylate copolymer, ethylene-acrylic acid copolymer, polyolefins, or polyamides, the mixture of resins present in an amount of from about 0.1 to about 3 percent by weight of the total weight of the conductive ink composition, wherein the plurality of stabilized metal-containing nanoparticles are dispersed in the ink vehicle, wherein the stabilized metal-containing nanoparticles are prepared by a first method comprising reacting a silver compound with a reducing agent comprising a hydrazine compound by incrementally adding the silver compound to a first mixture comprising the reducing agent, the stabilizer comprising the organoamine, and a solvent, wherein the ink composition comprises greater than about 15 weight percent silver, and wherein the two or more solvents comprise