EMULSIONS FOR PREPARING TRANSPARENT CONDUCTIVE COATINGS

A composition comprising metal nanoparticles dispersed in a liquid carrier that includes a continuous liquid phase and a dispersed liquid phase, where the composition is in the form of an emulsion. One of the continuous liquid phase or dispersed liquid phase includes at least 40 percent by weight, b...

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Bibliographische Detailangaben
Hauptverfasser:	PERELSHTEIN-ELBAZ, IRA, GARBAR, ARKADY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BASIC ELECTRIC ELEMENTS CABLES CHEMICAL PAINT OR INK REMOVERS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CONDUCTORS CORRECTING FLUIDS DIFFUSION TREATMENT OF METALLIC MATERIAL DYES ELECTRICITY FILLING PASTES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INKS INSULATORS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A composition comprising metal nanoparticles dispersed in a liquid carrier that includes a continuous liquid phase and a dispersed liquid phase, where the composition is in the form of an emulsion. One of the continuous liquid phase or dispersed liquid phase includes at least 40 percent by weight, based upon the total weight of the composition, of an aqueous phase, and the other of the continuous liquid phase or dispersed liquid phase includes an oil phase that evaporates more quickly than the aqueous phase. The metal nanoparticles are present in an amount no greater than 4 percent by weight, based upon the total weight of the composition. When the emulsion is coated onto a surface of a substrate and dried to remove the liquid carrier, the metal nanoparticles self-assemble to form a coating comprising a network-like pattern of electrically conductive traces defining cells that are transparent to light. L'invention porte sur une composition comprenant des nanoparticules métalliques dispersées dans un véhicule liquide qui comprend une phase liquide continue et une phase liquide dispersée, la composition se présentant sous la forme d'une émulsion. L'une de la phase liquide continue ou de la phase liquide dispersée comprend au moins 40 % en poids, par rapport au poids total de la composition, d'une phase aqueuse et l'autre de la phase liquide continue ou de la phase liquide dispersée comprend une phase huileuse qui s'évapore plus rapidement que la phase aqueuse. Les nanoparticules métalliques sont présentes en une quantité inférieure ou égale à 4 % en poids, par rapport au poids total de la composition. Lorsque l'émulsion est enduite sur une surface d'un substrat et séchée pour enlever le véhicule liquide, les nanoparticules métalliques s'auto-assemblent pour former un revêtement comprenant un motif en réseau de traces électroconductrices délimitant des cellules qui sont transparentes à la lumière.