Abstract: The invention relates to a security and/or value document having a security feature, to an ink for making the security feature, to a method for making such a security and/or value document, and to a method for verifying such a security and/or value document.

Abstract: Composition of carbon nanotubes (CNTs) are produced into inks that are dispensable via ink jet deposition processes or others. The CNT ink is dispensed into wells formed in a cathode structure. The inks include carbon nanotubes, binding materials, and possibly other nanoparticles. Such binding materials may include epoxies and silicate materials.

Abstract: An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle comprises a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition comprising a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle comprises a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial comprises semiconductor nanocrystals. Devices prepared from inks and methods of the invention are also described.

Abstract: A viscosity controllable highly conductive ink composition. The highly conductive ink composition comprises an organic solvent, nanoscale metal particles or metallo-organic decomposition compounds, and a thermally decomposable organic polymer. Specifically, since the thermally decomposable polymer can increase the viscosity of the highly conductive ink composition and be removed by subsequent thermal treatment, so as to decrease the impact on conductivity by organic polymer. Therefore, a viscosity-controllable conductive ink composition is obtained.

Abstract: The present invention relates to a process for preparation of silver complex compound and the compositions of silver ink containing the same. The present invention includes a) preparing silver complex compound with special structure by reacting silver compound with at least one or two mixtures selected from ammonium carbamate compound, ammonium carbonate compound or ammonium bicarbonate compound and b) preparing silver nano particles by reacting the silver complex compound with reducer or reducing or pyrolyzing the silver complex compound by applying heat thereto. The preparing method according to the present invention can prepare the silver nano practical with various shapes through a simple preparation process, improve the selectivity of the size of the silver complex compound, fire the silver complex compound even when it is fired at a low temperature of 150° C.

Abstract: Disclosed are a method of preparing a conductive ink composition for a flexible printed circuit (FPC) and a method of producing a printed circuit board using the conductive ink composition. This method includes preparing a first solution by mixing a Ag-containing compound and a fatty acid dispersion stabilizer in a polar solvent; preparing a second solution including Ag nanoparticles reduced from the Ag-containing compound by adding a reducing agent to the first solution; phase-transitioning the Ag nanoparticles into a nonpolar solvent by adding a phase-transition agent and a nonpolar solvent to the second solution including the Ag nanoparticles; and separating the nonpolar solvent including the Ag nanoparticles therefrom.

Abstract: A method for manufacturing metal nanoparticles, the method including forming a mixture by dissociating a metallic salt of a metal selected from the group consisting of Ag, Pd, Pt, Au and an alloy thereof as a metal precursor in fatty acid; and adding a metallic salt of a metal selected from the group consisting of Sn(NO3)2, Sn(CH3CO2)2, and Sn(acac)2 as a metallic catalyst into the mixture and mixing the mixture and the metallic salt. According to the method, metal nanoparticles have a uniform particle size distribution and a high yield by performing in a non-aqueous environment without using any organic solvent, and are environmentally friendly due to no use of a reducing agent.

Abstract: Methods for consistently reproducing channels of small length are disclosed. An ink composition comprising silver nanoparticles and a surface modification agent is used. The surface modification agent may also act as a stabilizer for the nanoparticles. A first line is printed which forms a modified region around the first line. A second line is printed, which is repelled from the modified region. As a result, a channel between the first line and the second line is formed.

Abstract: The electrically conductive ink in accordance with one embodiment of the present invention includes a metal colloid liquid and a saccharide compound, wherein the electrically conductive ink comprises the saccharide compound in an amount equivalent to at least 3% by weight and at a maximum 15% by weight of a solid content of the metal colloid liquid. This way, it is possible to provide an electrically conductive ink making it possible to form an electrically conductive film having a high electrical conductivity and a high adhesiveness to a substrate, to provide an electrically conductive film made from the electrically conductive ink, as well as to provide a production method of the electrically conductive ink and a production method of the electrically conductive film.

Abstract: An image-forming recording liquid according to the invention contains magnetic polymer particles and a dispersion medium for dispersing the magnetic polymer particles. The magnetic polymer particles contain a magnetic powder and a polymeric compound. The polymeric compound is a polymer prepared by polymerization of at least one monomer selected from the group consisting of a (meth)acrylate monomer and a styrenic monomer. The dispersion medium contains water, polyvinyl alcohol and an acetylene glycol-based surfactant.

Abstract: An ink for inkjet printing comprising a pigment, a water-dispersible resin, water, and a water-soluble organic solvent, wherein the water-dispersible resin is an anionic resin having a film elongation of 400-1,000%, a tensile strength of 20 to 50 N/mm2 and an absolute value for the zeta potential (mV) of 40 or greater, the amount of the anionic resin, reported as a weight ratio relative to the pigment, is within a range from (0.5 to 2.5)/1, and the surface tension of the ink is within a range from 30 to 50 mN/m.

Abstract: A semiconducting ink formulation comprises a semiconducting material; a first solvent; and a second solvent which is miscible with the first solvent, has a surface tension equal to or greater than the surface tension of the first solvent, and in which the semiconducting material has a solubility of less than 0.1 wt % at room temperature The surface tension of the ink formulation can be controlled, allowing the formation of semiconducting layers in organic thin film transistors, including top-gate transistors.

Abstract: An electrocatalyst ink composition comprising a liquid vehicle, particles comprising at least one electrocatalyst metal, and at least one copolymer dispersant comprising at least one polyalkylene oxide segment.

Abstract: An electrocatalyst, suitable for use in a fuel cell, comprises an alloy having a single crystalline phase, wherein the alloy consists of 5-95 at % palladium, 5-95 at % ruthenium and less than 10 at % of other metals, provided that the alloy does not consist of 50 at % palladium and 50 at % ruthenium.

Abstract: The present invention relates to nanoparticles having a hydrophilic surface coating, to methods of production thereof and to the use thereof in biological, molecular biological, biochemical and medical applications.

Abstract: According to the invention, there is provided an image recording composition comprising a curable material capable of immobilizing a colorant material in a received ink and curable by an external stimulus.

Abstract: Methods involve a combination of polyelectrolyte multilayer (PEM) coating or silane self assembly on a substrate; microcontact printing; and conductive graphite particles, especially size controlled highly conductive exfoliated graphite nanoplatelets. The conductive graphite particles are coated with a charged polymer such as sulfonated polystyrene. The graphite particles are patterned using microcontact printing and intact pattern transfer on a substrate that has an oppositely-charged surface. The method allows for conductive organic patterning on both flat and curved surfaces and can be used in microelectronic device fabrication.

Abstract: An ink composition includes an at least partially intercalated metal oxide colorant and an ink vehicle.

Abstract: Disclosed is a method for producing a fine particle dispersion such as a dispersion of metal fine particles which is superior in dispersibility and storage stability. Specifically disclosed is a method for producing a fine particle dispersion wherein fine particles of a metal or the like, having a mean particle diameter of between 1 nm and 150 nm for primary particles, are dispersed in an organic solvent.

Abstract: A conductor pattern forming ink for forming a conductor pattern on a substrate by a droplet discharge method includes: metal particles; an aqueous dispersion medium in which the metal particles are dispersed; and at least one of a compound expressed by Formula (I) below and alkanolamine. Here, R and R? are respectively one of H and an alkyl group.

Abstract: An exemplary ink for forming electrical traces includes a plurality of noble-metal-coated diacetylene vesicles formed by combining a noble-metal-ions-containing aqueous solution with diacetylenic monomers each including a hydrophilic group and a lipophilic group. The noble metal ions are attracted to an external surface of each of the diacetylene vesicles.

Abstract: A conductive ink formulation comprising silver, at least one first solvent, and a cross link wherein the cross link agent is present in an amount of about 1.5 wt % to about 6 wt % based on total weight of the formulation. The conductive ink formulation is suitable for printing on polymer film substrates, in particular with a gravure printing method. The polymer film substrates may be then applied to other substrates, for example glass substrates, by any suitable process such as lamination.

Abstract: An object of the invention is to provide a conductive metal ink having an excellent adhesion to various kinds of substrates such as a glass substrate, and making it possible to form fine wiring or electrodes. Another object is to provide a conductive ink which can be used for ink jet printing system etc. For the purpose of achieving the objects, a conductive ink comprising a solvent, a metal powder, and an adhesion improver, which is characterized in that the adhesion improver is one or mixture selected from the group consisting of a silane coupling agent, a titanium coupling agent, a zirconium coupling agent, and an aluminum coupling agent. is adopted. Furthermore, a surface tension of the solvent is adjusted to be in the range of 15 mN/m to 50 mN/m with a surface tension adjustor to provide conductive ink suitable for ink jet printing system etc.

Abstract: The present invention relates to nanoparticulate hardening accelerators, to preparations prepared therefrom, in particular masterbatches comprising nanoparticles, and to the use thereof in polymer matrices, in particular surface coatings and printing inks of all types, which make extremely high demands of colour neutrality and/or transparency.

Abstract: Disclosed is an electrically conductive feature on a substrate, and methods and compositions for forming the same, wherein the electrically conductive feature includes metallic anisotropic nanostructures and is formed by injetting onto the substrate a coating solution containing the conductive anisotropic nanostructures.

Abstract: A method comprising depositing an ink comprising a nanomaterial, a material capable of transporting charge, and a liquid vehicle from a micro-dispenser onto a layer of a device is disclosed. A method comprising depositing an ink comprising a nanomaterial, a material capable of transporting charge, and a liquid vehicle from a micro-dispenser onto a second material capable of transporting charge in a predetermined arrangement is also disclosed. In certain preferred embodiments, the nanomaterial comprises semiconductor nanocrystals. In certain preferred embodiments, a micro-dispenser comprises an inkjet printhead. Methods for fabricating devices including a nanomaterial and method for fabricating an array of devices including a nanomaterial are also disclosed. An ink composition including a nanomaterial, a material capable of transporting charge, and a liquid vehicle is also disclosed.

Abstract: The present invention relates to a process for the thermal treatment of metal coated particles, to the particles obtainable by the process and to their use for the manufacture of printable electronics, or for EMI shielding.

Abstract: A metallic inkjet ink includes a silver metallic colorant, another colorant and at least one ink vehicle. The other colorant is selected from a pigment, a dye, and combinations thereof. Also disclosed herein is a method of forming the metallic inkjet ink including providing an ink vehicle, adding the silver colorant to the ink vehicle, and adding the other colorant to the ink vehicle.

Abstract: A metallic ink including a vehicle, a multiplicity of copper nanoparticles, and an alcohol. The conductive metallic ink may be deposited on a substrate by methods including inkjet printing and draw-down printing. The ink may be pre-cured and cured to form a conductor on the substrate.

Abstract: A conductive ink composition includes about 15% to about 50% by weight of copper nanoparticles, about 40% to about 80% by weight of a non-aqueous solvent mixture, about 0.01% to about 5% by weight of a dispersion agent and about 1% to about 20% by weight of a wetting agent. A conductive pattern may be formed with use of the conductive ink composition and an inkjet printer.

Abstract: An ink compatibility including a dye and surface functionalized photocatalytically active semiconductor nanoparticles is provided. This ink composition enables the reuse of a print substrate, because the surface functionalized photocatalytically active semiconductor nanoparticles bleach the dye under an activating radiation.

Abstract: Disclosed is a method for producing a metal particle dispersion wherein a metal compound is reduced by using carbodihydrazide represented by the formula (1) below or a polybasic acid polyhydrazide represented by the formula (2) below (wherein R represents an n-valent polybasic acid residue) in a liquid medium. By reducing the metal compound in the presence of a compound having a function preventing discoloration of the metal, there can be obtained a metal particle dispersion having excellent discoloration preventing properties. Metal particles produced by such methods have a uniform particle diameter and are excellent in dispersion stability. By using a conductive resin composition or conductive ink containing a metal particle dispersion obtained by such production methods, there can be formed a conductive coating film, such as a conductive circuit or an electromagnetic layer, having good characteristics.

Abstract: A nickel ink having nickel particles dispersed in a dispersion medium is disclosed. The dispersion medium comprises one member or a combination of two or more members selected from the group consisting of an alcohol and a glycol both having a boiling point of 300° C. or lower at atmospheric pressure. The nickel particles have an average primary particle size of 50 nm or smaller. The nickel ink provides a conductor film with a surface smoothness having an average surface roughness Ra of 10 nm or smaller and a maximum surface roughness Rmax of 200 nm or smaller.

Abstract: Methods for forming doped regions in semiconductor substrates using non-contact printing processes and dopant-comprising inks for forming such doped regions using non-contact printing processes are provided. In an exemplary embodiment, a method for forming doped regions in a semiconductor substrate is provided. The method comprises providing an ink comprising a conductivity-determining type dopant, applying the ink to the semiconductor substrate using a non-contact printing process, and subjecting the semiconductor substrate to a thermal treatment such that the conductivity-determining type dopant diffuses into the semiconductor substrate.

Abstract: Disclosed is a charge-transporting varnish containing a charge-transporting organic material, a good solvent, at least one poor solvent with high leveling properties, and at least one volatile poor solvent. The charge-transporting organic material is composed of a charge-transporting material consisting of a charge-transporting monomer or a charge-transporting oligomer having a number average molecular weight of 200 to 5000, or alternatively composed of such a charge-transporting material and an electron-accepting dopant material or a hole-accepting dopant material. This charge-transporting varnish enables to form a uniform and smooth charge-transporting thin film by a spray method or an ink jet method on an exposed electrode portion such as ITO or IZO of a substrate on which a structure of a simple or complicated pattern is formed beforehand.

Abstract: A method of producing metal nanoparticles in a high yield rate and uniform shape and size, which is thus suitable for mass production. In addition, metal nanoparticles are provided that have superior dispersion stability when re-dispersed in various organic solvents, which thus suitable for use as a conductive ink having high conductivity. The method of producing nanoparticles includes mixing a metal precursor with a copper compound to a hydrocarbon based solvent, mixing an amine-based compound to the mixed solution of the metal precursor with copper compound and hydrocarbon based solvent, and mixing a compound including one or more atoms having at least one lone pair, selected from a group consisting of nitrogen, oxygen, sulfur and phosphorous to the mixed solution of the amine-based compound, metal precursor with a copper compound and hydrocarbon based solvent.

Abstract: A material set for recording includes: ink receiving particles that include a resin having an acid value of from about 50 mg KOH/g to about 750 mg KOH/g, and have a neutralization degree of from more than 0 to less than 1; and an ink that includes at least a colorant, a water-soluble solvent, and water, a value obtained by multiplying an electrical conductivity ? (S/m) of the ink by a viscosity ? (mPa·s) of the ink being from about 0.02 to about 5.0.

Abstract: A conductive ink having a glass frit, an organic medium a conductive species and one or more metallo-organic components which form metal oxides upon firing and reduce series resistance to a same or greater degree a ink that do not include metallo-organic components, is provided. Embodiments of conductive ink include metallo-organic components that include a bismuth metallo-organic component and glass frits comprising one or more of bismuth oxide, silica, boron oxide, tellurium dioxide, and combinations thereof. Embodiments of photovoltaic cells with an anti-reflection coating, gridlines formed from conductive ink incorporating one or more metallo-organic components, are also provided.

Abstract: A conductive ink substantially free of frit and photovoltaic cells having conductive gridlines formed from a conductive ink substantially free of glass frit are described. Conductive inks according embodiments of the present invention are adapted to adhere to the surface of a substrate and, upon firing, form a solid metal oxide phase and cause a conductive species to form an electrical conductor on the substrate. In further embodiments, the conductive ink is capable of penetrating anti-reflection coatings disposed on surfaces of substrates. In accordance with one or more embodiments, the conductive inks include a plurality of metallo-organic components which form a solid metal oxide phase upon firing and a conductive species. In other embodiments, the conductive inks include a plurality of precursors, including one or more precursors which form conductive elements upon firing or heating.

Abstract: Nano-powder-based coating and ink compositions, methods for producing and using these compositions, and articles prepared from these compositions are described.

Abstract: The invention relates to an ink providing an optical effect, when it is applied on a main surface of a smart card. Said ink comprising a mixture of a base solution and a metallic pigment, said mixture containing between 2 and 4% per weight of the metallic pigment. The ink allows to obtain smart card having an improved appearance, and particularly smart cards having a printed surface with optical effect.

Abstract: A conductive pattern forming ink for forming a conductive pattern on a substrate by a droplet discharge method includes: metal particles; an aqueous dispersion medium in which the metal particles are dispersed; erythritol; and a polyglycerol compound having a polyglycerol skeleton. In the ink, H shown in the following formula (I) is 0.15 to 0.

Abstract: A determining method is provided which can more easily determine whether an ink contains an amphoteric metal oxide or whether a recorded matter is recorded with an ink containing an amphoteric metal oxide. The determining method includes applying an acidic aqueous solution or an alkaline aqueous solution to an ink for ink-jet recording or a recorded portion of a recorded matter recorded with an ink for ink-jet recording, and observing pH change.

Abstract: A conductive pattern formation ink which can be stably ejected in the form of liquid droplets and form a conductive pattern having high reliability, a conductive pattern having high reliability, and a wiring substrate provided with the conductive pattern and having high reliability are provided. The conductive pattern formation ink is used for forming a conductive pattern by ejecting the ink in the form of liquid droplets on a surface of a ceramic molded body using a liquid droplet ejecting method, the ceramic molded body being made of a material containing ceramic particles and a binder. The ink contains a water-based dispersion medium, and metal particles dispersed in the water-based dispersion medium, wherein the water-based dispersion medium contains oxygen molecules and nitrogen molecules, and wherein when the water-based dispersion medium is analyzed using a gas chromatography method, a total amount of the oxygen and nitrogen molecules contained in the water-based dispersion medium is 12 ppm or less.

Abstract: A conductive pattern forming ink for forming a conductive pattern on a substrate by a droplet discharge method includes: metal particles; an aqueous dispersion medium in which the metal particles are dispersed; mannitol; and a polyglycerol compound having a polyglycerol skeleton. In the ink, H shown in the following formula (I) is 0.10 to 0.

Abstract: A method of forming an ink, the ink configured to form a conductive densified film is disclosed. The method includes providing a set of Group IV semiconductor particles, wherein each Group IV semiconductor particle of the set of Group IV semiconductor particles includes a particle surface with a first exposed particle surface area. The method also includes reacting the set of Group IV semiconductor particles to a set of bulky capping agent molecules resulting in a second exposed particle surface area, wherein the second exposed particle surface area is less than the first exposed particle surface area. The method further includes dispersing the set of Group IV semiconductor particles in a vehicle, wherein the ink is formed.

Abstract: A conductive pattern formation ink capable of forming a conductive pattern while preventing occurrence of disconnection thereof due to thermal expansion of a ceramic molded body, a conductive pattern having high reliability, and a wiring substrate provided with the conductive pattern and having high reliability are provided. The conductive pattern formation ink is used for forming a conductive pattern on a ceramic sintered body, wherein the ceramic sintered body with the conductive pattern is produced by the steps of applying the ink onto a ceramic molded body to obtain a pre-pattern on the ceramic molded body, and subjecting the ceramic molded body with the pre-pattern to a degreasing and sintering treatment.

Abstract: A conductive pattern formation ink which can be stably ejected from a liquid droplet ejection head, a conductive pattern having high reliability, and a wiring substrate provided with the conductive pattern and having high reliability are provided. The conductive pattern formation ink is used for forming a conductive pattern on a base member using a liquid droplet ejecting method and comprised of a dispersion solution. The dispersion solution includes a water-based dispersion medium, metal particles dispersed in the water-based dispersion medium, and a drying suppressant contained in the water-based dispersion medium, the drying suppressant being contained for preventing drying of the dispersion solution.

Abstract: The present invention relates to solution type silver organo-sol ink for forming electrically conductive patterns. The present invention provides silver organo-sol ink of solution type for forming electrically conductive pattern comprising effective amount of silver CO to C16 aliphatic carboxylate saturated or unsaturated, linear or branched, unsubstituted or substituted with amino, nitro and/or hydroxy group(s) having 1 to 3 carboxyl groups or silver aromatic carboxylate; and organic solvent. By the present invention, silver organo-sol inks of solution type basically having higher content of silver for various reducing or metallizing temperatures are obtained. The solution type ink of the present invention can be used for forming conductive patterns in flat panel display such as plasma display panel(PDP) to reduce the numbers of steps for pattern forming.

Abstract: The present invention provides to a composition, a composition for coloring and a conductive composition, each of which contains new carbon black having a specific number average particle size of Feret's diameter. The present invention relates to a composition containing carbon black, in which a number average particle size of Feret's diameter is 5 to 300 nm and primary particles are contained at 5% or more on a number basis. The composition of the present invention is uniform in coloring and conductivity and makes it possible to be uniform in coloring and conductivity of final forms using those compositions.