| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 423622000 | Zinc | 24 |
| 20080274041 | Preparation of nanoparticle-size zinc compounds - A method for making a dispersion of zinc oxide particles in hydrocarbon is provided. A zinc compound that thermally disintegrates is dispersed in a hydrocarbon solvent with a selected organic acid and the mixture is heated to a temperature range to cause the zinc compound to thermally disintegrate into nano-sized particles. | 11-06-2008 |
| 20090098043 | METHOD FOR PREPARING ZINC OXIDE NANOSTRUCTURES AND ZINC OXIDE NANOSTRUCTURES PREPARED BY THE SAME - Example embodiments provide a method for preparing zinc oxide nanostructures. According to the method, zinc oxide nanostructures are prepared by dipping a substrate having a zinc (Zn) seed layer thereon in an aqueous solution of hexamethyleneamine and dropwise adding an aqueous solution of zinc nitrate to the aqueous solution of hexamethyleneamine. In addition, zinc ions can be continuously supplied in a constant amount as the reactions of the reactants proceed to prepare high-quality zinc oxide nanostructures at a high growth rate. Furthermore, zinc oxide nanostructures can be prepared on a large-area substrate at a low processing temperature regardless of the substrate material. Example embodiments also provide zinc oxide nanostructures prepared by the method. | 04-16-2009 |
| 20100008847 | PROCESS FOR PRODUCING NANOPARTICLES - A process comprises (a) combining (1) at least one base and (2) at least one metal carboxylate salt comprising (i) a metal cation selected from metal cations that form amphoteric metal oxides or oxyhydroxides and (ii) a carboxylate anion comprising from one to four alkyleneoxy moieties, or metal carboxylate salt precursors comprising (i) at least one metal salt comprising the metal cation and a non-interfering anion and (ii) at least one carboxylic acid comprising from one to four alkyleneoxy moieties, at least one salt of the carboxylic acid and a non-interfering, non-metal cation, or a mixture thereof; and (b) allowing the base and the metal carboxylate salt or metal carboxylate salt precursors to react. | 01-14-2010 |
| 20100028254 | ZINC OXIDE PARTICLE, ZINC OXIDE PARTICLE FILM, AND PROCESSES FOR PRODUCING THESE - The present invention provides zinc oxide particles having a large specific surface area, and a zinc oxide composite material, and processes for producing these, and the invention is zinc oxide particles formed by crystal growth into a multi-needle shape and having a larger specific surface area than hexagonal columnar particles; to a zinc oxide composite material comprising the zinc-containing thin film and the zinc oxide particles; to processes for producing the zinc oxide particles and the composite material, and an advantage of the present invention is that a larger specific surface area can be obtained than with hexagonal columnar particles, and a particle film of a specified thickness with fewer grain boundaries can be formed, thereby achieving less reduction in dielectric constant due to grain boundaries. | 02-04-2010 |
| 20100034730 | One-step, paste-state mechanochemical process for the synthesis of zinc oxide nanoparticles - The present subject matter provides a time- and energy-saving paste-state mechanochemical process to synthesize zinc oxide nanoparticles. Our nanoparticles are small, have abundant surface hydroxyl groups and exhibit excellent UV blocking characteristics. One embodiment involves a process for preparing zinc oxide nanoparticles comprising grinding, milling, or a combination thereof a mixture comprising (a) at least one zinc salt, (b) at least one additional inorganic salt, and (c) at least one alkali hydroxide compound. | 02-11-2010 |
| 20100040534 | RADICAL GENERATING APPARATUS AND ZNO-BASED THIN FILM - Provided are: a radical generating apparatus that increases a purity of emitted plasma atoms, prevents contamination with impurities, and is improved in controllability over ion concentration; and a ZnO-based thin film prevented from being contaminated with impurities. A high-frequency coil ( | 02-18-2010 |
| 20100074837 | Production Method Of Fine Particle Zinc Oxide Powder And Cosmetics Containing The Same - It is to provide a production method of zinc oxide powder excellent in UV protection ability and transparency and to provide cosmetics containing the same. The fine particle zinc oxide powder is produced by subjecting either an aqueous solution containing both a water-soluble zinc salt and a carboxylic acid or an aqueous solution containing a water-soluble zinc carboxylate to pH adjustment with an alkali carbonate agent and aging the resulting mixture without calcining. The alkali carbonate agent may be 0.1 to 2 mol/L aqueous solution and the carboxylate group is 1 to 5 times in moles with respect to zinc. The pH adjustment can be carried out by dropwise addition of the alkali carbonate aqueous solution at 0.5 to 5 mL/min per 100 mL of either the aqueous solution containing both the water-soluble zinc salt and the carboxylic acid or the aqueous solution containing the water-soluble zinc carboxylate. | 03-25-2010 |
| 20100189637 | METHOD FOR THE VALORISATION OF ZINC-AND SULPHATE-RICH RESIDUE - The present invention describes a method for treating residues comprising zinc ferrites and non-ferrous metals selected from among the group made up of lead (Pb), silver (Ag), indium (In), germanium (Ge) and gallium (Ga) or mixtures thereof in the form of oxides and sulfates, comprising the following steps:
| 07-29-2010 |
| 20100329973 | METHOD AND APPARATUS FOR FORMING ZINC OXIDE - Provided is a method for forming zinc oxide which includes introducing a zinc vapor and a water vapor to a reactor; providing a zinc particulate to the reactor to promote the reaction between the zinc vapor and water vapor, thereby forming zinc oxide and hydrogen. An apparatus for forming zinc oxide is also provided. | 12-30-2010 |
| 20110280796 | Zinc Oxide Nanorod Thin Film and Method for Making Same - The zinc oxide nanorod thin film in accordance with the present invention is highly condensed and has ideal photoelectric properties. The method for making the zinc oxide nanorod thin film has two steps: forming a zinc oxide seed layer comprising multiple crystals each having a grain size of 1-100 nm on a basal plate and preparing a zinc oxide nanorod thin film growing solution in which the zinc oxide seed layer is allowed to grow a zinc oxide crystal columnar layer at a growing temperature ranging from 50 to 100° C. for a growing time ranging from 0.5 to 10 hours to form a zinc oxide nanorod thin film, wherein the zinc oxide nanorod thin film growing solution is a 0.001-0.1 M aqueous zinc ion solution comprising hexamethylenetetramine. | 11-17-2011 |
| 20110300061 | Polymer-mediated synthesis of ZnO nanostructures - Disclosed are methods for producing ZnO nanostructures, the methods comprising heating an aqueous solution comprising a zinc compound, a base, and a polymer which is polyvinylpyrrolidinone or poly(ethylene glycol). | 12-08-2011 |
| 20110311438 | Autosynthesizer for the controlled synthesis of nano- and sub-nanostructures - The present invention relates to a method and apparatus for the synthesis of nanostructures using at least one solution providing at least one chemical element appropriate for the type of nanostructure, the method comprising the steps of: a) adding (admixing) a reducing agent to the at least one solution, b) bringing a suitable substrate into contact with the at least one solution before or after step a), c) forming nucleation growth sites on the substrate and d) maintaining the temperature at a suitable level for the growth of the nanostructures, characterized by the further steps of e) providing at least one space having at least one dimension in the micron range, e.g. in the range from 1 μm to 500 μm, adjacent a surface of the substrate, f) growing said nanostructures in said at least one space, g) periodically separating said nanostructures from the substrate and removing them. | 12-22-2011 |
| 20120225006 | NANO-SIZED PARTICLES, PROCESSES OF MAKING, COMPOSITIONS AND USES THEREOF - The present invention describes methods for preparing high quality nanoparticles, i.e., metal oxide based nanoparticles of uniform size and monodispersity. The nanoparticles advantageously comprise organic alkyl chain capping groups and are stable in air and in nonpolar solvents. The methods of the invention provide a simple and reproducible procedure for forming transition metal oxide nanocrystals, with yields over 80%. The highly crystalline and monodisperse nanocrystals are obtained directly without further size selection; particle size can be easily and fractionally increased by the methods. The resulting nanoparticles can exhibit magnetic and/or optical properties. These properties result from the methods used to prepare them. Also advantageously, the nanoparticles of this invention are well suited for use in a variety of industrial applications, including cosmetic and pharmaceutical formulations and compositions. | 09-06-2012 |
| 20120328509 | PROCESS FOR PREPARING A ZINC COMPLEX IN SOLUTION - The present invention provides a process for preparing a solution of electrically uncharged [(OH) | 12-27-2012 |
| 20130101500 | DROPLET GENERATION SYSTEM AND METHOD - A droplet generation system includes a first nozzle configuration structured to receive a liquid and a gas under pressure in a controllable feed ratio, and to merge the liquid and gas to form an intermediate stream that is a mixture of the gas and of a dispersed phase of the liquid. A second nozzle configuration is connected to receive the intermediate stream from the first nozzle configuration and has a valve mechanism with one or more controllable operating parameters to emit a stream of droplets of the liquid. The mean size of the droplets is dependent on the controllable feed ratio of the liquid and gas and the flow rate of the stream of droplets is dependent on the controllable operating parameter(s) of the valve mechanism. A corresponding method is disclosed, as is the application of the system and method to the production of nanoparticles in a thermochemical reactor. | 04-25-2013 |
| 20140112862 | METHOD FOR PRODUCTION OF ZINC OXIDE PARTICLES - It is an object of the present invention to provide a new method for production of zinc oxide particles which can control the particle diameter and particle shape of obtained zinc oxide particles by selecting suitable conditions, and can prepare zinc oxide applicable to various applications. A method for production of zinc oxide particles, comprising a step of aging a zinc oxide raw material in an aqueous zinc salt solution. | 04-24-2014 |
| 20140328747 | ZINC OXIDE SPUTTERING TARGET AND METHOD FOR PRODUCING SAME - Provided is a zinc oxide sputtering target, which can effectively suppress the occurrence of break or crack in the target during sputtering to enable production of a zinc oxide transparent conductive film with high productivity. The zinc oxide sputtering target is composed of a zinc oxide sintered body comprising zinc oxide crystal grains, wherein the zinc oxide sputtering target has a sputter surface having a (100) crystal orientation degree of 50% or more. | 11-06-2014 |
| 20150010464 | METHOD FOR PRODUCING METAL OXIDE FILM AND METAL OXIDE FILM - The present invention includes the steps of (A) forming a solution containing zinc into mist and spraying the solution formed into mist onto a substrate under no vacuum to form a metal oxide film on the substrate, and (B) irradiating the metal oxide film with ultraviolet rays to decrease a resistance of the metal oxide film. Further, the step (B) includes the steps of (B-1) determining, in accordance with a film thickness of the metal oxide film, wavelengths of the ultraviolet rays to be radiated, and (B-2) irradiating the metal oxide film with the ultraviolet rays having the wavelengths determined in said step (B-1). | 01-08-2015 |
| 20150353373 | AIR STABLE ORGANIC-INORGANIC NANOPARTICLES HYBRID SOLAR CELLS - A solar cell includes a low work function cathode, an active layer of an organic-inorganic nanoparticle composite, a ZnO nanoparticle layer situated between and physically contacting the cathode and active layers; and a transparent high work function anode that is a bilayer electrode. The inclusion of the ZnO nanoparticle layer results in a solar cell displaying a conversion efficiency increase and reduces the device degradation rate. Embodiments of the invention are directed to novel ZnO nanoparticles that are advantageous for use as the ZnO nanoparticle layers of the novel solar cells and a method to prepare the ZnO nanoparticles. | 12-10-2015 |
| 20150376024 | ZINC OXIDE SPUTTERING TARGET - Provided is a zinc oxide-based sputtering target capable of improving the film formation rate while suppressing arcing in the formation of a zinc oxide-based transparent conductive film by sputtering. This zinc oxide-based sputtering target includes a zinc oxide-based sintered body mainly including zinc oxide crystal grains, and has a degree of (002) orientation of 50% or greater at a sputtering surface and a density of 5.30 g/cm | 12-31-2015 |
| 20150376025 | Mesoporous Zinc Oxide Powder and Method for Production Thereof - A method of manufacturing a zinc oxide powder including synthesizing a mesoporous zinc oxide precursor powder by adding an aqueous solution of zinc chloride to an aqueous solution of sodium carbonate while agitating to cause precipitation of a mesoporous zinc carbonate powder wherein the molar ratio of zinc chloride to sodium carbonate present when the aqueous solution of zinc chloride and the aqueous solution of sodium carbonate are reacted is at least 1:2, heat treating a mesoporous zinc precursor material to form the mesoporous zinc oxide powder at a heat treatment temperature in the range of 250-575° C. The zinc oxide powder includes mesoporous zinc oxide aggregates with a plurality of primary zinc oxide crystallites bonded together at shared interfaces. | 12-31-2015 |
| 20160024688 | FABRICATION AND/OR APPLICATION OF ZINC OXIDE CRYSTALS WITH INTERNAL (INTRA-CRYSTALLINE) POROSITY - Briefly, an embodiment comprises fabricating and/or uses of one or more zinc oxide crystals in which one or more zinc oxide crystals have intra-crystalline porosity other than incidental intra-crystalline porosity. | 01-28-2016 |
| 20160152486 | Preparation and Use of Zinc Compounds | 06-02-2016 |
| 423623000 | Volatizing zinc | 1 |
| 20080274042 | Nanostructured Zinc Oxide and a Method of Producing the Same - A method of producing nanostructured zinc oxide powder. The method comprises introducing a source of zinc selected from metallic zinc or zinc compound and a process gas mixture which includes an oxidizing gas (the reactants) into a reactor. While in the reactor, the reactants are heated to a process temperature effective to vaporize the zinc and to react the reactants to form a powder product. The powder product is recovered. | 11-06-2008 |
