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7413838 |
External additives for electrophotographic toner, electrophotographic toner, electrophotographic developer, image forming method and image forming apparatus
An external additives for electrophtographic toner comprising finely divided oxide particulate including a silicon compound and a compound for doping said oxide particulate, wherein particle...
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7374609 |
Optically variable pigments having an asymmetrical layer structure
The present invention relates to pigments whose particles have a length of from 2 μm to 5 mm, a width of from 2 μm to 2 mm and a thickness of from 50 nm to 1.5 μm and a ratio of length to...
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7335342 |
Process for the preparation of sodium silicate from Kimberlite tailing
In the present invention a process for the preparation of sodium silicate from Kimberlite tailing generated as solid waste during diamond mining is disclosed. The process comprises, reacting...
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7332144 |
Hydrophobic silica fine powder and making method
A hydrophobic silica fine powder is prepared by premixing a hydrophilic silica fine powder with a dimer diol siloxane or cyclic siloxane as a hydrophobizing agent, mixing them in a ball mill for...
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7326289 |
Film containing a photo-catalyst apatite, its formation method, coating liquid, and electronic device having portion coated with photo-catalyst apatite-containing film
A film containing a photo-catalyst apatite contains an inorganic coating main material, and a powdered photo-catalyst apatite and powdered titanium oxide that disperse within the inorganic coating...
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7318861 |
Effect pigment
An effect pigment is constituted by coated laminar platelets in which the platelets are a mixture of different platelet materials, one of which is platy glass or platy aluminum oxide, and in which...
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7291216 |
Platelet-shaped pigments
The present invention relates to platelet-shaped pigments comprising (a) a layer obtained by calcination of a layer comprising SiO z wherein 0.03≦z≦2.0 and a metal, to a process for the...
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7282264 |
Composition and method for controlling moisture
A composition and method which exhibits enhanced moisture sealing properties, suitable for use with flooring materials, such as concrete, and flooring installations, such as carpeting, wood, tiles,...
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7273522 |
Plane-parallel structures of silicon/silicon oxide
The present invention relates to plane-parallel structures of silicon/silicon oxide (silicon/silicon oxide flakes), obtainable by heating plane-parallel structures of SiO y in an oxygen-free...
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7255843 |
Low viscosity-increment fumed-silica and its slurry
A fumed-silica, which can make a slurry having sufficient wettability to a polar liquid, excellent dispersibility, and low viscosity even in the high concentration, and a slurry thereof. A...
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7255736 |
Effect pigments based on thin SiO2 flakes
Effect pigments having improved optical properties based on SiO 2 flakes coated with one or more layers, where the SiO 2 flakes have a thickness of from 50 nm to 150 nm; processes for the...
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7220305 |
Particulate metal oxide
A particulate metal oxide having the mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume...
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7217318 |
Nacreous pigment and method for the manufacture thereof
In a method for the manufacture of a nacreous pigment, in which a multi-layer film is produced by vacuum evaporation coating on a substrate and, after release from the substrate, the particles thus...
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7208038 |
Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler, process for its production and its use
Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler obtainable by reacting at least one biopolymeric, biooligomeric, oxidic or siliceous filler in a compressed gas with at least...
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7192461 |
High concentration silica slurry
A high concentration silica slurry can be used for polishing of substrates, such as semiconductor materials. The slurry contains a silica powder dispersed in an solvent. The silica slurry has a...
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7186440 |
Process for producing hydrophobic silica powder
A process for producing a hydrophobic silica powder, comprises the steps for hydrophobic treatment of: adding to a silica sol in mixed solvent having a silica concentration of 5 to 50 mass %...
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7169322 |
Aqueous dispersion, process for its production and use
Aqueous dispersion containing a silicon-aluminum mixed oxide powder, the powder containing 0.1 to 99.9 wt. % Al 2 O 3 and Si—O—Al-bonds. The dispersion can be produced using dispersing and/or...
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7169223 |
Effect pigments having a strong color flop
The present invention relates to effect pigments having a color flop comprising metal oxide-coated SiO 2 flakes having a uniform layer thickness, where the color flop runs through all four...
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7163999 |
Resin particle and method for preparation thereof
A method for preparing a resin particle having a large surface area and a shape factor (SF-1) of 110 to 800, which comprises a step of applying a shear force to an aqueous dispersion having a...
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7144628 |
Spherical silica-titania-based fine particles surface-treated with silane, production process therefor, and external additive for electrostatically charged image developing toner using same
Spherical silica-titania-based fine particles surface-treated with silane are provided. The fine particles have a titanium atom content of 0.001 to 5% by weight, a frictional electrification with...
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7141111 |
Embedded pigments for ceramic products and oxides in the form of nanometric particles
Described herein are embedded pigments consisting of a labile chromophore englobed in a coating of refractory and transparent material formed by nanomolecular particles, also described are oxides...
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7125432 |
Method for making precipitated silica or silicate compositions and products thereof
New methods of producing narrower particle size distribution precipitated silica and/or silicate materials are provided. Such a method permits a significant reduction in manufacturing costs through...
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7118622 |
Organic dyes suitable for use in drugs and cosmetics laked onto a platy titanium dioxide pigment
An unsupported platy titanium dioxide pigment containing an organic dye laked thereon. The dyed TiO 2 pigment is useful to color cosmetic, food, and drug formulations.
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7101427 |
Particulate metal oxide
A particulate metal oxide having a mean length of the primary particles in the range from 50 to 90 nm, the mean width of the primary particles in the range from 5 to 20 nm, and the median volume...
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7083770 |
Amorphous, fine silica particles, and method for their production and their use
The amorphous-silica particle having 0.1–0.7 μm of the average particle diameter, 5–30 m 2 /g of the specific surface area, less than 40% of the dispersion coefficient, and 20 μC/m 2 of the...
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7048788 |
Ship bottom paint using coal ash and diatomaceous earth
A ship bottom paint additive to prevent or reduce marine life attachment to the bottoms of ships, and ship bottom paint comprises a mixture of coal ash and diatom earth or beer yeast diatom earth...
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7037476 |
Process for preparing amorphous silica from kimberlite tailing
A new process is described for the preparation of free flowing hydrated amorphous silica from kimberlite tailing—a waste in diamond mining. The process comprises treating of kimberlite with acid,...
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7022175 |
Initial solids mixture for a later organic coating application
An initial solids mixture for a later organic coating, such as pigmented coatings, films, priming coats, etc., e.g., for a coil coating method in which an initial solids mixture is applied to a...
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7018596 |
Mesoporous silica, process for the preparation of the same, and use thereof
Accordingly, the invention provides: (1) mesoporous silica characterized by having an average pore diameter in the mesopore region of from 1.5 to 10 nm, a nitrogen adsorption specific surface area...
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7008462 |
Thermal spray compositions for abradable seals
A thermal spray composition and method of deposition for abradable seals for use in gas turbine engines, turbochargers and steam turbines. The thermal spray composition includes a solid lubricant...
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6960251 |
Inhomogeneous silicas as carrier material
A silica comprising at least two silica fractions, wherein said at least two silica fractions differ by at least 10% in at least one value for BET surface area, CTAB surface area and DBP...
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6921781 |
Process for covering silicas with wax
The present invention provides a process, which includes:
coating at least a portion of a surface of at least one silica particle with at least one wax, wherein the coating is carried out in...
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6921432 |
Stable mixtures containing extender pigments
A number of stable mixtures are disclosed containing specific combinations and levels of extender pigments and thickeners. These stable mixtures may be employed, inter alia, as a mixture in a...
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6908600 |
Method for obtaining pigments for ceramic and glass, and pigments obtained thereby
A method for obtaining pigments for ceramic and glass, particularly for substrates and coatings, including a step of adding a solution of an iron salt to at least one silicon addition agent...
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6893495 |
Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler, process for its production and its use
Silane-modified biopolymeric, biooligomeric, oxidic or siliceous filler obtainable by reacting at least one biopolymeric, biooligomeric, oxidic or siliceous filler in a compressed gas with at least...
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6890643 |
Floor polishing composition
A floor polishing composition containing a film-formable organic high molecular material as the main component, which further contains at least scaly particles.
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6884509 |
Special turf filler comprising silica particles
An aggregate turf filler for use with the turf of athletic fields and landscaped areas which comprise crushed silica sand particles (SiO 2 ) which are substantially round in shape and are sized to...
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6866710 |
Inorganic spherical absorption pigments
The present invention relates to inorganic spherical absorption pigments which have a bimodal particle-size distribution, at least one color-providing layer and a final SiO 2 layer, and to the use...
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6849112 |
Inorganic particles as a dental material and a method of producing the same
Amorphous inorganic particles as a dental material includes silica and inorganic oxide(s) other than silica and has high x-ray impermeability. The inorganic particles as a dental material includes...
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6800267 |
Doped precipitated silica
Aluminum-doped precipitated silicas having a BET surface area of more than 300 m 2 /g and aluminum distributed uniformly in the silica particles are prepared by sequentially heating a mixture of...
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6793720 |
Solid marking composition as writing means, a writing instrument, an optically variable marking layer and use of a plurality of optically variable pigments
A solid marking composition comprises a solid matrix containing at least one type of optically variable interference pigment flakes. The solid marking composition provides a document or article...
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6773499 |
Pigment mixture
The present invention relates to pigment mixtures consisting of at least two components, component A being SiO 2 flakes coated with one or more metal oxides and/or metals and component B being...
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6770128 |
Matting agent radiation for curing coatings
A matting agent composition comprises silica and wax wherein the composition has a median particle size in the range of about 2-12 microns, a wax content in the range of about 15-30 wt. % and the...
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6764539 |
Hardenable composition with high storage stability containing scaly silica particles and process for its production
A process for producing a hardenable composition with high storage stability containing scaly silica particles which consist essentially of foliar secondary silica particles and have a laminated...
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6723440 |
Abrasion resistant coating composition and article
The process comprises, (a) adding to a polymerizable composition containing a component A comprising at least one silane compound containing at least one epoxy group and at least two alkoxy groups...
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6706785 |
Methods and compositions related to laser sensitive pigments for laser marking of plastics
Platelet-shaped substrates that are coated with metal oxides and that are useful in the laser marking of plastics are disclosed. The platelet-shaped substrates may be employed as an additive to...
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6702887 |
Inhomogeneous silicas for elastomer compounds
A silica having a high degree of dispersibility and a low dust concentration contains at least two silica fractions that differ by at least 10% in at least one value of BET or CTAB surface area or...
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6695907 |
Dispersions containing pyrogenic oxides
Dispersions of pyrogenic oxides, doped using an aerosol, are prepared by mixing the oxide with a suspending agent and milling. The dispersions can be used to prepare inkjet paper.
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6682663 |
Pigment with day-light fluorescence
A pigment, especially a yellow to red emitting luminescent material, with a host lattice of the nitridosilicate type M x Si y N z :Eu, wherein M is at least one of an alkaline earth metal chosen...
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6679945 |
Pyrogenically prepared silicon dioxide
Pyrogenically prepared silicon dioxide with the following physicochemical properties: 1. Average particle size (D 50 value)D 50 ≧150 nm (dynamic light scattering, 30 wt %) 2. Viscosity (5 rpm,...
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