Class / Patent application number | Description | Number of patent applications / Date published |
427213300 | Solid encapsulation process utilizing an emulsion or dispersion to form a solid-walled microcapsule (includes liposome) | 23 |
20100080898 | METHOD FOR PRODUCTION OF A MINISUSPOEMULSION OR SUSPENSION OF SUB-MICRON CORE/SHELL PARTICLES - The proposal is made for a process for the preparation of a minisuspoemulsion of submicron core/shell particles, wherein
| 04-01-2010 |
20100092663 | ORGANICALLY MODIFIED FINE PARTICLES - A technique for bonding an organic group with the surface of fine particles such as nanoparticles through strong linkage is provided, whereas such fine particles are attracting attention as materials essential for development of high-tech products because of various unique excellent characteristics and functions thereof. Organically modified metal oxide fine particles can be obtained by adapting high-temperature, high-pressure water as a reaction field to bond an organic matter with the surface of metal oxide fine particles through strong linkage. The use of the same condition enables not only the formation of metal oxide fine particles but also the organic modification of the formed fine particles. The resulting organically modified metal oxide fine particles exhibit excellent properties, characteristics and functions. | 04-15-2010 |
20100215852 | CORE-SHELL NANOPARTICLES AND PROCESS FOR PRODUCING THE SAME - A process for forming thermoelectric nanoparticles includes the steps of a) forming a core material micro-emulsion, b) adding at least one shell material to the core material micro-emulsion forming composite thermoelectric nanoparticles having a core and shell structure. | 08-26-2010 |
20140255603 | SURFACE COATING METHOD AND A METHOD FOR REDUCING IRREVERSIBLE CAPACITY LOSS OF A LITHIUM RICH TRANSITIONAL OXIDE ELECTRODE - A surface coating method and a method for reducing irreversible capacity loss of a lithium rich transitional oxide electrode are disclosed herein. In an example of the surface coating method, a dispersion of a lithium rich transitional oxide powder and an oxide precursor or a phosphate precursor in a liquid is formed. The liquid is evaporated. The forming and evaporating steps are carried out in the absence of air to prevent precipitation of the oxide precursor or the phosphate precursor. Hydrolyzation of the oxide precursor or the phosphate precursor is controlled under predetermined conditions, and an intermediate product is formed. The intermediate product is annealed to form an oxide coated lithium rich transitional oxide powder or the phosphate coated lithium rich transitional oxide powder. | 09-11-2014 |
20150104572 | Non-Metallic Nano/Micro Particles Coated with Metal, Process and Applications Thereof - The present invention provides a simple and economical process for preparation of metal-coated non-metallic nano/micro particles. The nano/micro particles are composed of a core and metallic coat over the core using silver or other transition/noble metals. The core of the non-metallic nano/micro particles are selected from inorganic material such as silica, calcium carbonate, barium sulfate, or emulsion grade polyvinyl chloride and other polymers prepared by emulsion process including porous polymers. The metal coating is selected from the transition/noble metals such as copper, nickel, silver, palladium, platinum, osmium, ruthenium, rhodium, and such other metals and their combinations that are easily reducible to elemental metal. | 04-16-2015 |
427213310 | With post-treatment of encapsulant or encapsulating material (e.g., further coating, hardening, etc.) | 15 |
20090208647 | Method for producing a funtional, high-energy material - The method for producing a propellant powder (TLP) with a layered grain structure starts with a green powder, which is impregnated in a watery emulsion with an energetic plasticizer and a polymeric deterrent. Propellant powders (TLP) can be produced in industrial quantities by avoiding the dangerous direct introduction of a blasting oil. The propellant powders (TLP) produced in this way have similar characteristics and a similar structure as the known propellant powders (TLP). | 08-20-2009 |
20110008536 | PREPARATION OF MICROCAPSULE USING PHASE CHANGE MATERIAL - Disclosed is a method for preparing a microcapsule containing a phase change material, comprising: a first encapsulation stage comprising adding a phase change material of 3-50% to a surfactant-containing solution of 0.1-10 wt% of water, adding a first monomer of 10-40%by weight of the phase change material to the solution so as to form an emulsified mixture, and adding an initiator of 0.005-1.0 wt% to the mixture, followed by polymerization; and a second encapsulation stage comprising adding a second monomer of 20-50% by weight of the phase change material, and adding an aldehyde- or dEsocyanate-containing compound of 30-500% by weight of the second monomer, followed by crosslinking. The microcapsule includes two coating layers for protecting the phase change material, so that the phase change material present within the microcapsule does not leak to the outside. Also, the microcapsule has a compact structure and can be prepared in the form of a particle having a size of the micrometer level or smaller, so that it has high thermal conductivity leading to high thermoresponsivity. | 01-13-2011 |
20120107499 | Ceramic Encapsulation With Controlled Layering By Use of Functionalized Silanes - This invention relates to a method for forming hollow silica-based particles suitable for containing one or more active ingredients or for containing other smaller particles which may include one or more active ingredients. The method comprises preparing an emulsion including a continuous phase that is polar or non-polar and a dispersed phase comprising droplets including (i) a polar active ingredient when the continuous phase is non-polar or (ii) a non-polar active ingredient when the continuous phase is polar; and adding a silica precursor to the emulsion such that the silica precursor can be emulsion templated on the droplets to form hollow silica-based particles. The silica precursor has the general formula (I): R | 05-03-2012 |
20120295026 | METHOD FOR PRODUCING HOLLOW BODIES HAVING ENCLOSED FREELY DISPLACEABLE PARTICLES - The invention relates to a method for producing hollow bodies having freely displaceable particles enclosed in the hollow body, wherein a) a gel-forming liquid in which the particles are suspended is brought into a cross-linking bath, b) the gel cores that form are isolated, c) the cores are coated with a composition comprising sinterable material and a binder, and d) the coated cores are subjected to a heat treatment wherein the gel and the binder are expunged and the sinterable material is sintered into a closed shell. The gel forming material is, for example, sodium alginate, and the cross-linking bath comprises calcium ions. The particles are selected, for example, from ZrO | 11-22-2012 |
20140141163 | METHOD OF SYNTHESIZING HOLLOW SILICA FROM SODIUM SILICATE - Disclosed is a method of synthesizing hollow silica having the size of micrometers from sodium silicate. The method includes fabricating a polystyrene organic template from polystyrene latex, (B) cleaning the polystyrene organic template, (C) exchanging media by using a water-base medium, introducing the cleaned polystyrene organic template and sodium silicate, and preparing a silica-coated organic template by performing an acidic hydrolysis reaction, and (D) cleaning the silica-coated organic template included in the water-base medium by using water. The size of the organic template is adjusted by controlling an amount of introduced AIBN included when the organic template is fabricated. The cleaning of the organic template is preferably performed by using water (H | 05-22-2014 |
20140178581 | FINE METAL PARTICLES AND FINE METAL OXIDE PARTICLES IN DRY POWDER FORM, AND USE THEREOF - The present invention provides a process for simply and easily producing fine metal particles or fine metal oxide particles in the form of a dry powder which can be used as extremely fine particles in a good dispersion state without causing coagulation for a long time even if not stored in a dispersion solvent. Fine metal particles or fine metal oxide particles in the form of a dry powder are prepared using a dispersion in which fine metal particles or fine oxide metal particles having a surface oxidation film are dispersed in an organic solvent in a stable state, while once covering the particle surface with covering agent molecules containing, at a terminal, a functional group having an oxygen atom, a nitrogen atom, or a sulfur atom as a group capable of forming a coordinative bond with metal, and by removing the dispersion solvent, washing and removing excess covering agent molecules with a polar solvent without damaging the covering agent molecule layer covering the fine particle surface, finally evaporating the polar solvent used for washing and drying. | 06-26-2014 |
20140295077 | Capsule Formation - A method of forming a capsule, comprising: encapsulating a body of solid core material with a coating material and converting the core material from a solid to a liquid to form a capsule having a liquid core encapsulated by a solid coating. An apparatus configured to perform the method is also described. | 10-02-2014 |
20140342087 | TREATED INORGANIC CORE PARTICLES HAVING IMPROVED DISPERSABILITY - This disclosure relates to a process for preparing a treated inorganic core particle having improved dispersability comprising: (a) heating a slurry comprising porous silica treated inorganic core particle and water at a temperature of at least about 90° C.; and (b) adding a soluble alumina source to the slurry from step (a) while maintaining the pH at about 8.0 to 9.5 to form an alumina treatment on the porous silica treated inorganic core particle; wherein the treated inorganic core particle does not comprise dense silica or alumina treatments, and has silica present in the amount of at least about 7% up to about 14% and alumina present in the amount of about 4.0% to about 8.0%; and wherein the particle to particle surface treatments are substantially homogeneous. | 11-20-2014 |
20160047050 | METHOD FOR PRODUCTION OF METAL SKIN LAYER PARTICLES WITH CONTROLLABLE LAYER THICKNESS - A method of depositing at least one metal skin layer on a metal nanoparticle core is disclosed. The first step of the method is selecting a metal to deposit. Then, the metal nanoparticle core is dispersed in an electrolyte solvent to form a liquid mixture. Next, a hydrogen containing gas is bubbled through the liquid mixture to form a layer of adsorbed hydrogen atoms on the surface of the metal nanoparticle core. Finally, the selected metal is added to the liquid mixture to form a metal skin layer on the metal nanoparticle core. | 02-18-2016 |
427213320 | Hardening | 6 |
20110195181 | SUPERHYDROPHOBIC POWDERS, STRUCTURE WITH SUPERHYDROPHOBIC SURFACE, AND PROCESSES FOR PRODUCING THESE - A process for producing superhydrophobic powders comprising silica as the main component and the surface of the powders have a contact angle with water of 150° or larger; and a structure having a superhydrophobic surface comprising the powders. The process comprised: introducing hydrophobic groups into the silica present in the surface of aggregates of organic/inorganic composite nanofibers obtained by combining a polymer, which is an organic substance, with silica, which is an inorganic substance, on the order of nanometer or into the silica obtained by calcining the organic/inorganic composite nanofibers and removing the polymer there from; and thereby making powders composed of the aggregates superhydrophobic. Also provided is a superhydrophobic powders obtained by the process. The structure having a superhydrophobic surface is obtained by fixing the superhydrophobic powders to a surface of a solid substrate. | 08-11-2011 |
20140255604 | Synthesis of Nanomaterials - A method is disclosed for synthesis of nanoparticles of metal selenide, metal selenide alloys, metal chalcogenide comprising at least selenium or metal chalcogenide alloys comprising at least selenium. The method comprises obtaining a heterogeneous dispersion of powder at least selenium in a first solvent at a first temperature, the first temperature being such that the heterogeneous dispersion comprises at least a fraction of undissolved powder in the solvent. The method also comprises introducing the heterogeneous dispersion into a second solvent containing a metal cation precursor, the second solvent being at a second temperature higher than said first temperature allowing, upon introduction of the heterogeneous dispersion, dissolution of at least the fraction of the power resulting in nucleation of the nanoparticles. The method results in efficient and easy production of nanoparticles. | 09-11-2014 |
427213330 | Using crosslinking agent | 4 |
20090196991 | Rapid action coater - A new device and process for continuously applying coatings, such as resin and additives or polymers or the like, to minerals is disclosed. The device and apparatus differ substantially from standard batch coating processes currently used by industry. The apparatus uses a horizontal cylinder with an internal auger and a series of injection ports distributed along the cylinder. Minerals that are to be coated are pretreated and passed through the mixing cylinder using the auger (which may comprise one or more screws with variable pitch blades). As the mineral particles pass through the cylinder various coating materials are injected by the injection ports. The complete system is described, the method of use is explained and the control system which allows for different products is described. | 08-06-2009 |
20100304023 | WATER-IN-OIL CAPSULE MANUFACTURE PROCESS AND MICROCAPSULES PRODUCED BY SUCH PROCESS - A novel method of forming water in oil microcapsules is disclosed. According to the invention microcapsules are obtained by steps comprising dispersing an oil soluble amine modified polyfunctional polyvinyl monomer and an oil soluble bi- or polyfunctional vinyl monomer along with a thermal or UV free radical initiator (optionally included in one or both of the oil or water phases) and an organic acid into an internal phase oil; heating or UV exposing for a time (and temperature) sufficient to oligomerize the amine modified polyfunctional polyvinyl monomer and oil soluble bi- or polyfunctional vinyl monomer forming a pre-polymer. Thereafter the process involves adding to the oil phase oil a water phase comprising a dispersion in water of an anionic emulsifier (and optionally initiator), and adding an emulsifying agent. Emulsifying the water phase into the oil phase (W/O) is controlled through the quantity of water employed. The emulsion is then UV exposed or heated for a time (and temperature) sufficient to decompose the free radical initiators in the oil and/or water phases; thereby forming microcapsule wall material at the interface of the water and oil phases. | 12-02-2010 |
20120171373 | ENCAPSULATION OF PIGMENTS WITH POLYMER LATEX PREPARED BY MINI-EMULSION POLYMERIZATION - A process for preparing a polymer latex comprising encapsulated pigment particles, said process comprising the steps of: a) Providing a first dispersion comprising water, at least one surfactant and at least one particulate, inorganic pigment of which the particles have a mean diameter of from 200 nm to 10 μm; b) Providing a second dispersion comprising water, a dispersant, a hydrophobe and at least two polymerizable monomers, of which monomers at least one is an acrylic monomer; c) Independently homogenizing the first and/or second dispersions; d) Mixing said first and second dispersions and homogenizing said mixture until the particles of pigment are encapsulated by monomer droplets; and e) Initiating polymerization of the monomers. In an embodiment, the at least two polymerizable monomers comprise at least one acrylic monomer and at least one monomer being vinyl acetate, styrene or another non-acrylic monomer comprising a polymerizable double bond. | 07-05-2012 |
20130260032 | Process for Thermal Postcrosslinking in a Drum Heat Exchanger with an Inverse Screw Helix - A process for thermal surface postcrosslinking of water-absorbing polymer particles, wherein the polymer particles are coated with an aqueous solution, the coated polymer particles are deagglomerated and the deagglomerated polymer particles are thermally surface postcrosslinked by means of a drum heat exchanger with an inverse screw helix. | 10-03-2013 |
427213340 | Solid-walled microcapsule formed by in situ polymerization | 2 |
20130095239 | POLYMER-ENCAPSULATED NANOPARTICLE SYSTEMS - A method for forming a system including polymer-encapsulated nanoparticles includes forming an inverse mini-emulsion including a continuous phase of a non-aqueous medium and a discontinuous phase of at least: a plurality of nanoparticles having a polar surface, and at least one of i) a polar, water-soluble, or water-miscible monomer, or ii) a polar, water-soluble, or water-miscible pre-polymer. The method further includes initiating polymerization of the at least one of the monomer or the prepolymer to form a polymer coating on each of the plurality of nanoparticles in the non-aqueous medium. | 04-18-2013 |
20140050845 | PREPARATION OF HOLLOW POLYMER MICROSPHERES - The present invention of three-stage process relates to preparing hollow particles with a buffer layer, exhibiting integrity of particle structure and uniformity of particle size, used in plastic or paper coating, and showing superior characteristics of gloss, whiteness, high opacity, high printing color density and good water resistance. | 02-20-2014 |
427213360 | Solid-walled microcapsule formed from preformed synthetic polymer | 1 |
20170233535 | CORE-SHELL METAL NANOPARTICLE COMPOSITE | 08-17-2017 |