Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Aqueous continuous liquid phase and discontinuous phase...
Patent
1998-05-07
1999-09-28
Kelly, C. H.
Colloid systems and wetting agents; subcombinations thereof; pro
Continuous liquid or supercritical phase: colloid systems;...
Aqueous continuous liquid phase and discontinuous phase...
516 32, 516 77, 516 97, 516928, 106 119, 420501, C09K 300, B01F 1700, B05B 310, C22C 506
Patent
active
059578289
ABSTRACT:
A silver sol comprises silver particles having a particle size ranging from 1 to 100 nm and a silver solid content ranging from 1 to 80% by weight. The silver sol can be prepared by a method comprising the steps of reacting a solution of a silver compound with a reducing agent at a temperature ranging from 5 to 50.degree. C. and a stirring speed falling within the range of from 1,000 to 10,000 rpm to form silver fine particles; recovering the resulting silver fine particles using a centrifugal separator; and then dispersing the silver fine particles in a medium to give a silver sol having a silver solid content ranging from 1 to 80% by weight. The silver sol or a coating material obtained by diluting the sol to a desired silver solid content and, if desired, adding a binder permits the formation of a transparent conductive film on, for instance, a cathode-ray tube while reducing the production cost. The resulting transparent conductive film has high transparency suitably used for coating a cathode-ray tube, excellent conductivity, in particular, good electromagnetic shielding properties and a surface resistance of not more than 10.sup.3 .OMEGA./.quadrature..
REFERENCES:
patent: 2752237 (1956-06-01), Short et al.
patent: 3201223 (1965-08-01), Cuhra et al.
patent: 3345158 (1967-10-01), Block et al.
patent: 4552691 (1985-11-01), Shoji et al.
patent: 4979985 (1990-12-01), Tosun et al.
patent: 5294370 (1994-03-01), Wichers et al.
Oppenheimer, "Characterization of Gold & Silver Sol by Sedimentation Field-Flow Fractionation", Langmuir, 1988, vol. 4, pp. 144-147.
Tohno, "Production of highly concentrated nanophase silver . . . ", J. Aerosol Sci., 1993, vol. 24, No. 3, pp. 339-347.
Cole Monique T.
Kelly C. H.
Mitsui Mining and Smelting Co. Ltd.
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