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1. WO2012078590 - STABLE DISPERSIONS OF MONOCRYSTALLINE NANOMETRIC SILVER PARTICLES

Publication Number WO/2012/078590
Publication Date 14.06.2012
International Application No. PCT/US2011/063459
International Filing Date 06.12.2011
IPC
H01B 1/22 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
20Conductive material dispersed in non-conductive organic material
22the conductive material comprising metals or alloys
B22F 9/24 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
16using chemical processes
18with reduction of metal compounds
24starting from liquid metal compounds, e.g. solutions
C09D 11/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
11Inks
C09D 5/24 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
5Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
24Electrically-conducting paints
C08K 3/08 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
02Elements
08Metals
CPC
B01F 17/0007
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
17Use of substances as emulsifying, wetting, dispersing or foam-producing agents
0007Inorganic compounds
B01F 17/0028
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
17Use of substances as emulsifying, wetting, dispersing or foam-producing agents
0021Organic compounds containing oxygen
0028Macromolecular compounds
B01F 17/005
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
17Use of substances as emulsifying, wetting, dispersing or foam-producing agents
0042Organic compounds containing nitrogen
005Macromolecular compounds
B01J 13/0043
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
13Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
0004Preparation of sols
0043containing elemental metal
B01J 23/50
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
38of noble metals
48Silver or gold
50Silver
B22F 1/0022
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
0003Metallic powders per se; Mixtures of metallic powders; Metallic powders mixed with a lubricating or binding agent
0007Metallic powder characterised by its shape or structure, e.g. fibre structure
0011Metallic powder characterised by size or surface area only
0018Nanometer sized particles
0022Dispersions or suspensions thereof
Applicants
  • P.V. NANO CELL LTD. [IL]/[IL] (AllExceptUS)
  • LAMPERT, Shalom [US]/[IL] (BA)
  • DE LA VEGA, Fernando [IL]/[IL] (UsOnly)
  • SHTER BAR JOSHUA, Ganit [IL]/[IL] (UsOnly)
  • MELAMED, Semyon [IL]/[IL] (UsOnly)
  • GEVA, Reuven [IL]/[IL] (UsOnly)
  • LINK, Moshe [IL]/[IL] (UsOnly)
Inventors
  • DE LA VEGA, Fernando
  • SHTER BAR JOSHUA, Ganit
  • MELAMED, Semyon
  • GEVA, Reuven
  • LINK, Moshe
Common Representative
  • LAMPERT, Shalom [US]/[IL]
Priority Data
1020556.506.12.2010GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) STABLE DISPERSIONS OF MONOCRYSTALLINE NANOMETRIC SILVER PARTICLES
(FR) DISPERSION STABLES DE NANOPARTICULES MONOCRISTALLINES D'ARGENT
Abstract
(EN)
A concentrated dispersion of nanometric silver particles, and a method of producing the dispersion, the dispersion including a first solvent; a plurality of nanometric silver particles, in which a majority are single-crystal silver particles, the plurality of nanometric silver particles having an average secondary particle size (d50) within a range of 30 to 300 nanometers, the particles disposed within the solvent; and at least one dispersant; wherein a concentration of the silver particles within the dispersion is within a range of 30% to 75%, by weight, and wherein a concentration of the dispersant is within a range of 0.2% to 30% of the concentration of the silver particles, by weight.
(FR)
La présente invention concerne une dispersion concentrée de nanoparticules d'argent, et un procédé de production de la dispersion, la dispersion comprenant un premier solvant; une pluralité de nanoparticules d'argent, une majorité de celles-ci étant des particules d'argent monocristallines, la pluralité de particules d'argent nanométriques ayant une taille moyenne des particules secondaires (d50) dans une plage allant de 30 à 300 nanomètres, les particules étant dispersées dans le solvant; et au moins un dispersant; une concentration des particules d'argent dans la dispersion étant située dans une plage allant de 30 % à 75 %, en poids, et une concentration du dispersant étant située dans une plage allant de 0,2 % à 30 % de la concentration des particules d'argent, en poids.
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