Abstract: This invention relates to coated particles used as phosphor particles for a phosphor screen of a display and a coating method for such particles. In the coating method of the present invention, first particles having a mean particle diameter of 3 to 10 ?m are fluidized, and slurry drops obtained by suspending second particles having a mean particle diameter of 5 to 500 nm are generated from a spray nozzle or the like. Then, the fluidized first particles and the slurry drops are collided with each other, and thereby the second particles are coated on the surfaces of the first particles. Thereby, this invention is able to present coated particles wherein each surface of the first particles is uniformly coated with the second particles that are more microscopic than the first particles.

Abstract: There are provided magnetic iron oxide particles having an average particle diameter (Dp50) of primary particles of 0.05 to 0.3 ?m, an average particle diameter (Da50) of secondary particles of 0.055 to 0.9 ?m, and a ratio of the average particle diameter (Da50) of the secondary particles to the average particle diameter (Dp50) of the secondary particles (Da50/Dp50) of 1.1 to 3.0, as well as a magnetic toner containing the magnetic iron oxide particles. The magnetic iron oxide particles of the present invention are in the form of small agglomerated particles and exhibit an excellent dispersibility, and the magnetic toner using the magnetic iron oxide particles is excellent in electrification stability.

Abstract: Composite particles containing metallic shell layers are provided. The particles may include a coating layer, such as of a protective or electrically non-conducting material, over an outermost metallic shell layer. The particle preferably has a plasmon resonance associated with at least one metallic shell layer. The coating layer preferably imparts improved thermal stability to the plasmon resonance. Further, the present invention relates to particles that include at least two metallic shell layers, separated by a coating layer. The addition of a second metallic shell layer preferably allows the plasmon resonance of the shell layer to be more red-shifted with respect to a colloidal particle of the metal that the plasmon resonance of a particle of the same size but with only a single metallic shell.

Abstract: At least one of a hollow particle 14, a porous particle 24, and a solid particle 34 having the pores 18, 28, 38 on the surface thereof is subjected to plasma irradiation under a reduced pressure while changing plasma irradiation intensity and/or the degree of vacuum. After the plasma irradiation, at least one type of monomer is graft polymerized onto the surface of the plasma irradiated particle by contact between the at least one type of monomer and the particle so as to substantially fill the pores 18, 28, and 38 of the particle with grafted polymers 12 of the monomers.

Abstract: A high strength composite particle comprised of a series of incrementally applied resin microlayer coatings such that each of the microlayer partial coatings are interleaved with each other is described. Methods of making the composite particles, as well as methods of using such particles as a proppant in oil and gas well hydraulic fracturing are also described.

Abstract: A hexagonal ferrite magnetic powder having an average tabular diameter of from 15 to 30 nm, a coercive force (Hc) of from 2,000 to 5,000 Oe (from 160 to 400 kA/m) and a saturated magnetization (?s) of equal to or more than the average tabular diameter (nm)×0.37+45 A·m2/kg. This magnetic powder is obtained by melting a starting material containing a material which has a composition within the hatched region (1) in the triangular phase diagram shown in FIG. 1 and quenching the molten product to obtain an amorphous product, subjecting the amorphous product to a thermal treatment, acid treatment, and washing. Also, a magnetic recording medium is obtained by adding this magnetic powder to the magnetic layer and coating it on the support.

Abstract: Expanded polystyrene particles having a polyvinyl acetate resin-based functional skin layer, and a process thereof are provided. The particle includes an inner expanded polystyrene layer; and a functional skin layer. The inner expanded polystyrene layer is formed by heating and expanding an expandable polystyrene bead or pellet, and the functional skin layer is formed by coating the surface of the inner expanded polystyrene layer with a functional coating composition having 10 to 99 wt % of a vinyl acetate based polymer and 0.1 to 90 wt % of at least one functional additive.

Abstract: A nanocrystal capable of light emission includes a nanoparticle having photoluminescence having quantum yields of greater than 30%.

Abstract: The invention is a composite resin particle useful as an additive for paints or coatings, powder coatings, cosmetic additives, slush molding resins, spacer for electronic part assembly, standard particles for electric measurement devices, toner, hot melt adhesive as well as other molding materials. Said composite resin particle comprises a resin microparticle (A) depositing on the surface of a resin particle (B) wherein the shape factor (SF-1) of said composite resin particle is 115 to 800. It is also a composite resin particle comprising a resin microparticle (A) depositing on the surface of a resin particle (B) wherein the acid vale of a resin (b) constituting the resin particle (B) is 5 to 100.

Abstract: Granule comprising an agglomerate of particles of a mineral substance. The agglomerate is coated with a monolithic outer layer, which provides it with improved abrasion resistance. Powder comprising granules according to the invention. Process for manufacturing the powder according to the invention, which includes an agglomeration step and a coating step.

Abstract: A method of using a pellet composed of an aggregate of distinct beads of a chromatography media. The pellet is coherent and capable of being rapidly hydrated on addition of water to form a gel wherein said beads are swollen and substantially uniformly dispersed in the water phase and a combination of the a ligand with the chromatography media.

Abstract: Water-dispersible nanoparticles are prepared by applying a coating of a multiply amphipathic dispersant to the surface of a hydrophobic nanoparticle comprised of a semiconductive or metallic material. The multiply amphipathic dispersant has two or more hydrophobic regions and two or more hydrophilic regions, and is typically polymeric. Preferred polymeric dispersants are comprised of (1) a hydrophobic backbone with hydrophilic branches, (2) a hydrophilic backbone with hydrophobic branches, or (3) a backbone that may be either hydrophobic or hydrophilic, and substituted with both hydrophilic and hydrophobic branches. Monodisperse populations of water-dispersible nanoparticles are also provided, as are conjugates of the water-dispersible nanoparticles with affinity molecules such as peptides, oligonucleotides, and the like.

Abstract: A process for producing an ultrafine mixed-crystal oxide characterized by producing an ultrafine mixed crystal oxide comprising primary particles in a mixed crystal state with a BET specific surface area of 10 to 200 m2/g, comprising the step of subjecting a halogenated metal to high temperature oxidation with an oxidizing gas to produce a metal oxide by a vapor phase production method, wherein said halogenated metal is in the form of a mixed gas (a mixed halogenated metal gas) comprising at least two compounds having a different metal elements selected from the group consisting of chlorides, bromides, and iodides of titanium, silicon, and aluminum, and said mixed halogenated metal gas and said oxidizing gas are independently preheated to 500° C. or more prior to a reaction, a ultrafine mixed crystal oxide obtained by the process, and use of the oxide.

Abstract: A nanocomposite optical plastic article has a plastic host material with a temperature sensitive optical vector (x) and a core shell nanoparticulate material dispersed into the plastic host material. The core shell nanoparticulate material is characterized by a core defined by a nanoparticulate material which has a temperature sensitive optical vector (x1) and a shell defined by a coating material layer coated onto the core. It is important to the invention that temperature sensitive vector (x1) is directionally opposed to the temperature sensitive optical vector (x) and nshell<nplastic host<ncore.

Abstract: Polyfunctional silicon compounds of one of the following formula: in which N-PG is a nitrogen containing function group. Also, such compounds bound to substrates for use as chromatography packing.

Abstract: The present invention relates to a method of producing a magnetic particle including forming a layer containing an alloy particle that can form a CuAu-type or Cu3Au-type hard magnetic ordered alloy phase on a support, oxidizing the layer, and annealing the layer in a non-oxidizing atmosphere. The invention also relates to a method of producing a magnetic particle including producing an alloy particle that can form a hard magnetic ordered alloy phase, oxidizing the alloy particle, and annealing the particle in a non-oxidizing atmosphere, and a magnetic particle produced by the foregoing production method. Further, the invention relates to a magnetic recording medium comprising a magnetic layer containing a magnetic particle and a method of producing a magnetic recording medium including forming a layer containing an alloy that can form the foregoing hard magnetic ordered alloy phase, oxidizing the layer, and annealing the layer in a non-oxidizing atmosphere.

Abstract: Tellurium-containing nanocrystallites are produced by injection of a precursor into a hot coordinating solvent, followed by controlled growth and annealing. Nanocrystallites may include CdTe, ZnTe, MgTe, HgTe, or alloys thereof. The nanocrystallites can photoluminesce with quantum efficiencies as high as 70%.

Abstract: Provided are magnesium hydroxide particles having a hexagonal crystal form and having an aspect ratio (H) which satisfies the following expression (I), 0.45·A·B<H<1.1·A·B??(I) (wherein H is an aspect ratio, A is an average secondary particle diameter (?m) of all of the particles measured by a laser diffraction scattering method and B is a specific surface area (m2/g) of all of the particles measured by a BET method), a flame-retardant comprising the particles, a flame-retardant resin composition comprising 100 parts by weight of a synthetic resin and a 5 to 300 parts by weight of the magnesium hydroxide particles, and a molded article therefrom. The magnesium hydroxide particles are hexagonal single crystals, the hexagonal form thereof are not necessarily required to be regular hexagonal, and the size thereof are not necessarily constant.

Abstract: An anti-fogging tray is obtained by coating a styrenic resin sheet with an anti-fogging agent to mold a tray. The anti-fogging agent comprises 1 to 50 parts by weight of a non-ether-series hydrophilic polymer excluding a polyvinyl alcohol (e.g., a polyvinylpyrrolidone), 5 to 150 parts by weight of an ether-series hydrophilic polymer (e.g., polyoxyethylene-polyoxypropylene block copolymer, and a nonionic surfactant having an oxyethylene unit), and 1 to 50 parts by weight of a silicone oil relative to 100 parts by weight of a polyhydric alcohol fatty acid ester (e.g., a sucrose fatty acid ester, a polyglycerin fatty acid ester). A coating layer comprising a surface-treating agent may be formed on one side of the resin sheet, and a mold-releasing layer containing a component selected from the ether-series hydrophilic polymer and the silicone oil may be formed on the other side of the resin sheet.

Abstract: Glass formulations, and a method of converting such glass formulations to glass beads having a refractive index of at least 1.59 and a high level of retroreflectivity, are provided. The methods and formulations provide beads also having high levels of resistance to degradation by environmental exposure.