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501 - Compositions: ceramic

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Class / Patent application numberDescriptionNumber of patent applications / Date published
501011000 Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions 513
501094000 Refractory 154
501134000 Titanate, zirconate, stannate, niobate, or tantalate or oxide of titanium, zirconium, tin, niobium, or tantalum containing (e.g., dielectrics, etc.) 146
501087000 Carbide or oxycarbide containing 93
501080000 Pore-forming 37
501002000 Devitrified glass-ceramics 28
501153000 Aluminum compound containing 25
501152000 Yttrium, lanthanide, actinide, or transactinide containing (i.e., atomic numbers 39 or 57-71 or 89+) 24
501141000 Clay containing (e.g., porcelain, earthenware, etc.) 18
501154000 Silicon compound containing 10
501086000 Synthetic precious stones (e.g., single crystals, etc.) 6
501151000 Fluorine containing 5
20100248938PASSIVE OPTOCERAMICS WITH CUBIC CRYSTAL STRUCTURE, PROCESS FOR MANUFACTURING THE SAME AND THEIR USES - The optoceramics are transparent to visible light and/or infrared radiation. The optoceramics each consist of a crystal matrix, i.e. of polycrystalline material, wherein at least 95% by weight, preferably at least 98% by weight, of the single crystallites have a cubic pyrochlore or a fluorite structure. Refractive, transmissive or diffractive optical elements made with the optoceramics, their uses and an optical imaging system comprising at least one of the optical elements are also disclosed. Methods of manufacturing the optoceramics are described.09-30-2010
20110224065METHOD FOR FABRICATING APATITE CRYSTALS AND CERAMICS - The present invention provides a method of crystallizing Yb:C-FAP [Yb09-15-2011
20100210446LOW TEMPERATURE CO-FIRED CERAMIC POWDER AND SPECIAL RAW MATERIAL AND USE THEREOF - The present invention relates to a ceramic powder and special raw material and use thereof. The raw material of the ceramic powder comprises 20-80 mass parts of SiO08-19-2010
20100323878Method for producing Ca-La-F based transparent ceramic, Ca-La-F based transparent ceramic, optical element, optical system, and ceramic-forming composition - A method of producing a Ca—La—F based transparent ceramic, including: mixing CaF12-23-2010
20110045962PROCESS FOR RECYCLING SPENT POT LININGS (SPL) FROM PRIMARY ALUMINIUM PRODUCTION - The present invention relates to a process for recycling SPL from primary aluminium production, comprising the steps of grinding the separated fractions or cuts, separating materials by means of mechanical treatment, mixing salt slags with SPL, dissolving in water the product obtained in the previous step, carrying out a chemical reaction between water and the materials to be made inert, sedimenting, removing cyanides, filtering to obtain a soluble fraction and another insoluble fraction, washing the insoluble fraction, crystallizing salts of the soluble fraction and aging or conditioning the insoluble fraction. The present invention further relates to the product obtained by means of said process and the use thereof in different fields of the art.02-24-2011
501140000 Elemental sulfur containing 2
20080269044Chalcogenide glass composition - A chalcogenide glass composition composed of arsenic (As), selenium (Se), sulfur (S), and antimony (Sb) is presented. The composition includes arsenic in the range from 25% to 45% by weight relative to the total weight of the composition, selenium in the range from 40% to 65% by weight relative to the total weight of the composition, sulfur in the range from 2% to 15% by weight relative to the total weight of the composition, and antimony in the range from 0% to 15% by weight relative to the total weight of the composition. The variability of constituents on a weight basis is greater than the related arts, thus facilitating a broader range of design options. The glass composition is preferred to have a thermal expansion coefficient of about 23.6×1010-30-2008
20130217564METHOD FOR SYNTHESISING DIAMOND - A method of synthesising diamond, the method comprising; (i) providing, in the presence of an atomic hydrogen plasma and/or in the presence of atomic hydrogen radicals, in a dissolution zone a liquid metal saturated with carbon with respect to graphite precipitation; (ii) transferring at least a portion of the liquid metal from the dissolution zone to a deposition zone, (vi) exposing the liquid metal in the deposition zone to atomic hydrogen plasma and/or to atomic hydrogen radicals, the temperature of the liquid metal in the deposition zone being lower than the temperature of the liquid metal in the dissolution zone such that the liquid metal in the deposition zone is saturated, preferably supersaturated, with carbon with respect to diamond precipitation; (vii) precipitating carbon from the liquid metal in the deposition zone to synthesise diamond; and (viii) optionally removing the synthesised diamond from the metal.08-22-2013
501155000 Composed of waste material 1
20130190165CHEMICALLY BONDED CERAMICS BASED ON FLY ASH - Chemically bonded ceramics and manufacturing processes are described. In one aspect, a manufacturing process of a chemically bonded ceramic is carried out by: (1) combining an acidic liquid and Fly ash to form a mixture; and (2) curing the mixture to form the chemically bonded ceramic. The Fly ash corresponds to at least a majority by weight of solids combined with the acidic liquid to form the mixture.07-25-2013
20130085055METHODS OF FLASH SINTERING - This disclosure provides methods of flash sintering and composition created by these methods.04-04-2013
20130040799PROCESS FOR PREPARING HIGH-PURITY MAGNESIUM HYDROXIDE AND MAGNESIUM OXIDE - A process for preparing magnesium compounds by precipitation, in which an aqueous solution or suspension of a magnesium compound is mixed with a precipitant and the corresponding magnesium compound is precipitated wherein the aqueous solution or suspension of a magnesium compound is obtained by reaction of an organomagnesium compound with an aldehyde or a ketone or another electrophile and subsequent aqueous workup of the reaction mixture at a pH of at most 10 or from a magnesium salt with a maximum calcium content and/or potassium content of 200 ppm, based on the magnesium salt used.02-14-2013
20130072370Methods for Reducing Defects in Ceramic Articles and Precursors - A method of reducing the defects in ceramic articles and precursors, particularly ceramic articles and precursors made using a batch composition containing an oil phase material. The method includes increasing the concentration of a water insoluble soap in the batch composition, which can increase the cohesive strength of the oil phase, leading to a reduction in the incidence of defects in the ceramic articles and precursors.03-21-2013
20120225768METHOD FOR MANUFACTURING CERAMIC HONEYCOMB STRUCTURE AND COATING MATERIAL FOR THE CERAMIC HONEYCOMB STRUCTURE - There is provided a method for manufacturing a ceramic honeycomb structure comprising: a coating material adjustment step for obtaining a coating material by mixing at least water with a ceramic powder aggregate having only one peak in a particle size distribution, an average particle size of 23 to 39 μm, and a particle size distribution width of 15 to 33, a coating material application step for applying the coating material to cover the outer periphery of a honeycomb structure having a plurality of cells separated by porous ceramic partition walls, and a coating material heat-drying step for forming an outer wall by heat-drying the coating material after the coating material application step. By the method, the outer periphery is covered with a coating material to form an outer wall to hardly generate, for example, crack generation and peeling upon drying the outer wall, and the coating material is provided.09-06-2012
20120225767METHOD OF FABRICATING OPTICAL CERAMICS CONTAINING COMPOSITIONALLY TAILORED REGIONS IN THREE DIMENSION - In accordance with the present embodiment, a method for making an optical ceramic comprises depositing a plurality of thin layers of powder. The powder comprises a first optical material powder having a first dopant level, and a second optical material powder. The first and second optical material powders are deposited for each layer based on the first dopant level and according to data associated with a three-dimensional (3D) compositional profile design of an optical ceramic. The method further comprises binding the first and second optical material powders of each thin layer to each other and each thin layer with an adjacent layer such that a green state optical ceramic is produced based on the 3D compositional profile design. The method further comprises densifying the green state optical ceramic to obtain the optical ceramic.09-06-2012
20110275505Sinterable semi-coke powder with high bulk density - In a continuous method for production of a semicoke powder with high bulk density and flowability, a sinterable carbon powder (semicoke) is dispersed in water with addition of at least one binder and at least one liquefier, wherein the proportion of carbon in the dispersion is adjusted to at least 50 wt. %, relative to the mass of the dispersion, and the zeta potential of the dispersion is adjusted to less than −50 mV, the dispersion is submitted to homogenisation and stabilisation by continuous wet grinding with a residence time in the mill of less than 3 minutes and the homogeneous dispersion is spray-dried.11-10-2011
20090143211SYSTEMS AND METHODS FOR CARBON CAPTURE AND SEQUESTRATION AND COMPOSITIONS DERIVED THEREFROM - A method of sequestering a greenhouse gas is described, which comprises: (i) providing a solution carrying a first reagent that is capable of reacting with a greenhouse gas; (ii) contacting the solution with a greenhouse gas under conditions that promote a reaction between the at least first reagent and the greenhouse gas to produce at least a first reactant; (iii) providing a porous matrix having interstitial spaces and comprising at least a second reactant; (iv) allowing a solution carrying the at least first reactant to infiltrate at least a substantial portion of the interstitial spaces of the porous matrix under conditions that promote a reaction between the at least first reactant and the at least second reactant to provide at least a first product; and (v) allowing the at least first product to form and fill at least a portion of the interior spaces of the porous matrix, thereby sequestering a greenhouse gas.06-04-2009
20110230329POWDERS USED FOR PRODUCING Ni-Cu-Zn SYSTEM FERRITE CERAMICS SINTERED BODY AND METHOD FOR MANUFACTURING THE SAME - The first invention relates to powders for producing a Ni—Cu—Zn system ferrite ceramics sintered body, comprising ferrite calcined powders and NiO powders, wherein the specific surface area of said ferrite calcined powders is within the range of 4.0 m09-22-2011
20110245062EXTRUSION MOLDING COMPOSITION AND METHOD FOR PRODUCING EXTRUSION MOLDED PART - An extrusion molding composition comprises a cellulose or cellulose derivative, an ionic liquid, and a ceramic material. The composition can be extrusion molded into a ceramic part at a high molding speed and without drying cracks.10-06-2011
20110212823CERAMIC SHAPED BODY AND WIRING BOARD - A ceramic shaped body for producing a wiring board includes a ceramic material, a binder, and a polyalcohol, the polyalcohol being present in at least a near-surface region of the ceramic shaped body.09-01-2011
20090312170Inorganic Phosphate Resins and Method for Their Manufacture - A method is provided for making inexpensive synthetic inorganic resins that are stable, mix easily with water and may be conveniently diluted to form an easy-to-use paste for commercial applications. The method uses environmentally friendly techniques to provide improved efficiencies in the commercial production of these resins. The resins are produced by the partial reaction of phosphoric acid with sparsely-soluble oxides, or sparsely-soluble oxide minerals, that are added to the phosphoric acid under controlled conditions. In certain specific embodiments, methods are provided for modifying synthetic inorganic resins so as to produce rapid-setting phosphate cements and ceramics having high flexural strength. Unique synthetic inorganic resin formulations are also disclosed. These formulations are phosphate-mineral based, non-volatile, tend to be non-flammable, do not contain any hazardous inorganic or organic compounds, and are chemically stable at relatively high temperatures, yet they are less expensive than most commercially available organic synthetic polymeric resins.12-17-2009
20110021335SOL-GEL PROCESS WITH A PROTECTED CATALYST - The invention provides a sol-gel process for preparing a mixture of metal-oxide-metal compounds wherein at least one metal oxide precursor is subjected to a hydrolysis treatment to obtain one or more corresponding metal oxide hydroxides, the metal oxide hydroxides so obtained are subjected to a condensation treatment to form the metal-oxide-metal compounds, which process is carried out in the presence of a catalyst which comprises a labile protecting group (P9) and a base (B) which are covalently linked, whereby the covalent link between the protecting group and the base is cleavable by exposure to an external stimulus, and wherein the base released after exposure to such external stimulus is capable of catalyzing the condensation of the metal-hydroxide groups that are present in the metal oxide hydroxides so obtained.01-27-2011
20120302421CERAMIC COMPOSITIONS FOR INCREASED BATCH FEED RATE - A precursor batch composition that can be used to make porous ceramic articles is provided. The batch composition includes a cellulose-based polymer and, in particular, a methylcellulose showing a specified micro-calorimetry thermal response fingerprint. The methylcellulose can also have a cloud point above a specified temperature.11-29-2012
20110105293Negative Dielectric Constant Material Based on Ion Conducting Materials - Metamaterials or artificial negative index materials (NIMs) have generated great attention due to their unique and exotic electromagnetic properties. One exemplary negative dielectric constant material, which is an essential key for creating the NIMs, was developed by doping ions into a polymer, a protonated poly(benzimidazole) (PBI). The doped PBI showed a negative dielectric constant at megahertz (MHz) frequencies due to its reduced plasma frequency and an induction effect. The magnitude of the negative dielectric constant and the resonance frequency were tunable by doping concentration. The highly doped FBI showed larger absolute magnitude of negative dielectric constant at just above its resonance frequency than the less doped PBI.05-05-2011
20110319251Isomorphously Substituted Silicate - The present invention relates to a process for the preparation of an isomorphously substituted RUB-36 silicate comprising (1) providing a mixture containing silica, preferably amorphous silica, and/or at least one silica precursor, water, at least one suitable structure directing agent, (2) heating the mixture obtained according to (1) under hydrothermal conditions to give a suspension containing an RUB-36 silicate, (3) separating the RUB-36 silicate, wherein (a) either the mixture according to (1) contains at least one element suitable for isomorphous substitution and/or (b) the separated RUB-36 silicate according to (3) is subjected to isomorphous substitution.12-29-2011
20110319250Process For The Preparation Of Pillared Silicates - The present invention relates to a process for the preparation of a silicate compound, comprising (1) providing at least one layered silicate; and (2) mixing said layered silicate with water and at least one silicon containing compound according to formula R12-29-2011
20120015797METHOD AND APPARATUS ASSOCIATED WITH ANISOTROPIC SHRINK IN SINTERED CERAMIC ITEMS - A manufacturing method for producing ceramic item from a photocurable ceramic filled material by stereolithography. The method compensates for the anisotropic shrinkage of the item during firing to produce a dimensionally accurate item.01-19-2012
20120115706Ceramics for Decorative Component and Decorative Component Using the Same - An object of the present invention is to provide ceramics for decorative component which have golden color tone and provide high-grade impression, aesthetic satisfaction and mind soothing effect, and also has small color difference and does not cause deterioration in beautiful appearance of the decorative surface, and a decorative component using the same. The ceramics for decorative component comprise a titanium nitride-based sintered body containing nickel, niobium, chromium and carbon, and are characterized in that a content of carbon on a decorative surface is not less than 0.4% by mass and not more than 0.9% by mass, and the decorative surface does not substantially contain aluminum. Since the decorative surface does not substantially contain aluminum, a preferable golden color can be provided, and an adhesion of silver-white spot-like foreign matters on the decorative surface is less likely to occur as a result of bonding of aluminum to the above metal component. Therefore, deterioration in beautiful appearance of the decorative surface is less likely to occur.05-10-2012
20110124482SINTERING AIDS - Embodiments of the present invention disclosed herein include a sintering aid composition that has a material useful for sintering, an amine, and optionally a carboxylic acid.05-26-2011
20120322645METHOD OF SYNTHESIZING MULTI-IPHASE OXIDE CERAMICS WITH SMALL PHASE DOMAIN SIZES - Nanocomposites of multi-phase metal oxide ceramics have been produced from water soluble salts of the resulting metal oxides by a foaming esterification sol-gel method. The evolution of volatile gases at elevated temperature during the esterification reaction causes the formation of a foam product. Nanocomposites of multi-phase metal oxide ceramics have also been produced by a cation polymer precursor method. In this second method, the metal cations are chelated by the polymer and the resulting product is gelled and foamed. Calcination of the resulting foams gives nanocomposite powders with extremely fine, uniform grains and phase domains. These microstructures are remarkably stable both under post-calcination heat treatment and during consolidation by hot-pressing.12-20-2012

Patent applications in class CERAMIC COMPOSITIONS

Patent applications in all subclasses CERAMIC COMPOSITIONS