Compositions: ceramic inventions 05/08

20080125303 - Lithium silicate materials: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.... Agent: Nixon Peabody LLP - Patent Group

20080125304 - Glass yarn for reinforcing organic and/or inorganic materials: The invention relates to glass reinforcement strands, the composition of which comprises the following constituents in the limits defined below, expressed as percentages by weight: 59 to 63% SiO2; 10 to 16% Al2O3; 16 to 23% CaO; 1 to 3.2% MgO; 0 to 2% Na2O+K2O+Li2O; 0 to 1% TiO2; 0.1... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080125305 - Aluminum titanate batch compositions and method: Aluminum titanate precursor batch compositions comprising a recycled aluminum titanate component, at least a portion of the recycled aluminum titanate component being comprised of a recycled pre-reacted aluminum titanate composition or alternatively of an un-reacted green aluminum titanate precursor composition, and methods for producing aluminum titanate ceramic articles utilizing the... Agent: Corning Incorporated

20080125306 - Ceramic materials containing spherical shaped carbon particles: Ceramic materials with a matrix which contains at least one carbide, at least one carbide-forming element and carbon, and which furthermore contain a dispersed phase of carbon particles with spherical shape and an average diameter of 0.2 μm to 800 μm, a process for their production and their use for... Agent: Dickinson Wright PLLC

20080125307 - Refractory ceramic composite and method of making: A method for manufacturing a refractory ceramic body is disclosed. The method comprises contacting a zirconia precursor, a silica precursor, a sol-gel forming agent, and a preformed zircon. The method can further comprise forming the composition into a desired shape and firing the desired shape to form a dense, creep... Agent: Corning Incorporated

20080119345 - Composition for ceramic substrate, ceramic substrate, method for producing ceramic substrate, and glass composition: A ceramic substrate composition is provided which can be co-fired with a low-melting metal and exhibits excellent dielectric characteristics at high frequencies, particularly tens of gigahertz. The ceramic substrate composition mainly contains a glass represented by aB2O3-bRe2O3-cZnO, wherein the molar ratios (a, b, and c) fall within a region defined... Agent: Dickstein Shapiro LLP

20080119346 - Synthetic quartz glass substrate for excimer lasers and making method: A synthetic quartz glass substrate having (i) an OH concentration of 1-100 ppm and a hydrogen molecule concentration of 1×1016-1×1019 molecules/cm3, (ii) an in-plane variation of its internal transmission at wavelength 193.4 nm which is up to 0.2%, and (iii) an internal transmission of at least 99.6% at wavelength 193.4... Agent: Birch Stewart Kolasch & Birch

20080119347 - Mold system for casting of reactive alloys: The present invention relates to novel binder and slurry formulations used to form molds for casting metal alloys and, more particularly, reactive metal alloys. The shell molds lead to more uniform castings which exhibit limited alpha case as compared to other currently available shell mold systems.... Agent: Harness, Dickey & Pierce, P.L.C

20080119349 - Sialon insert and cutting tool equipped therewith: Provided are a Sialon insert made of a Sialon sintered body including a Sialon phase comprising an α-Sialon and a β-Sialon, and at least one element, originating from a sintering aid, selected from the group consisting of Sc, Y, Dy, Yb, and Lu in an amount of 0.5 to 5... Agent: Sughrue Mion, Pllc

20080119348 - Optical glass for precision press molding, preform for precision press molding, and process for the production thereof: A high-refractivity high-dispersion optical glass for producing an optical element, which requires no machining, such as polishing or lapping, of an optical-function surface after precision press molding, containing B2O3, SiO2, La2O3, Gd2O3, ZnO, Li2O, ZrO2 and Ta2O5 as essential components, containing 0 to 1 mol % of Sb2O3 as an... Agent: Nixon & Vanderhye, Pc

20080113857 - High strain-point glass composition for substrate: The present invention relates to a glass substrate composition comprising SiO2 55˜70 wt %, Al2O3 0˜1 wt %, ZrO2 0.1˜5 wt %, Na2O 0.1˜5 wt %, K2O 7˜13 wt %, MgO 7˜14 wt %, CaO 0˜4 wt %, SrO 7˜12 wt % and SO3 0.01˜0.5 wt %. The glass substrate... Agent: Birch Stewart Kolasch & Birch

20080113858 - Honeycomb forming die and jig for honeycomb forming die using the same: A die was provided for forming a honeycomb body having a structure provided with groovy slits on a front face thereof, the slits being formed by cell blocks and back holes on a back surface thereof, each hole being communicatively connected with the slit. The die is made of cemented... Agent: Oliff & Berridge, Plc

20080108494 - Composition of molybdenum disilicide and the application of the same: Disclosed is a molybdenum disilicide composition for preventing a low-temperature deterioration phenomenon and the application thereof. The present invention provides a molybdenum disilicide composition, which can improve the sinterability characteristics of a molybdenum disilicide heating element and a thick film paste heating element using the same by adding silicon (Si)... Agent: Ipla P.a.

20080108495 - Method for waste stabilisation and products obtained therefrom: A method is provided for heavy metal stabilisation comprising: mixing waste, comprising heavy metals, with molecular sieve with the proviso that carbon-based molecular sieve is excluded, and clay; and vitrifying the mixture. In particular, a method comprising the steps of: preparing a pre-stabilised mixture by mixing waste, comprising heavy metals,... Agent: Birch Stewart Kolasch & Birch

20080108496 - Composition used to make a transparent ceramic material and method of manufacturing the same: A composition for making a transparent sintered yttrium aluminum garnet ceramic material wherein the composition includes an amount of yttrium oxide powder and aluminum oxide powder. The yttrium oxide powder has a particle surface area of about 18 m2 per gram and the aluminum oxide powder has a surface area... Agent: General Electric Company Global Research

20080108497 - Metal-rich siliceous compositions and methods of producing same: A modified sol-gel method to create metal-rich siliceous material, such as colloidal silica or aluminosilicate particles is disclosed. Initially, the metal salt of choice is added to a silicic acid solution or a silicic acid solution containing aluminum salt. The aluminum is added to vary the metal-support interaction as it... Agent: Edward O. Yonter Patent And Licensing Department

20080103036 - Low dielectric glass fiber: A glass fiber having a low dielectric constant and low dielectric loss tangent consists essentially of by weight, as a glass composition, 52 to 60% of SiO2, 11 to 16% of Al2O3, 20 to 30% of B2O3, and 4 to 8% of CaO, and substantially no MgO, substantially no Li2O,... Agent: Moore & Van Allen PLLC

20080103039 - Glass frit with iron selenide complex: A colored glass is provided that includes a base material and a colorant including Fe2O3 and Se. The Fe2O3 and Se are combined in the frit or glass as a Fe2O3—Se complex before being added with the base material.... Agent: Automotive Components Holdings LLC C/o Macmillan, Sobanski & Todd, LLC

20080103037 - Silica glass containing tio2 and process for its production: A process for producing a silica glass containing TiO2, which comprises a step of forming a porous glass body on a target quartz glass particles obtained by flame hydrolysis of glass-forming materials, a step of obtaining a fluorine-containing porous glass body, a step of obtaining a fluorine-containing vitrified glass body,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080103038 - Silica glass and optical material: A silica glass containing from 0.1 to 10 mass % of Sn calculated as SnO2 and from 3 to 10 mass % of Ti calculated as TiO2, which has a homogeneity of the coefficient of thermal expansion from 0 to 100° C. to the temperature of from 50 to 200... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.