Compositions: ceramic inventions 10/07

20070249480 - Optical glass, optical element and method of manufacturing thereof: An optical glass comprises, denoted as weight percentages, SiO2: 2-22%, B2O3: 3-24%, ZnO: >8% and ≦30%, CaO+BaO+ZnO: 10-50%, MgO: 0-3%, La2O3+Y2O3+Gd2O3+Yb2O3: 1-33%, TiO2: 2-20%, ZrO2: 0-10%, Nb2O5: 2-32%, Li2O: 0-5%, Na2O: 0-8%, K2O: 0-10%, WO3: 0-20%. The ratio by weight of La2O3 to the combined contents of La2O3, Y2O3, Gd2O3,... Agent: Sughrue Mion, PLLC

20070249481 - Fusion-cast refractory with high electrical resistivity: A fusion-cast refractory is provided. The refractory comprises 0.8% to 2.5% Al2O3, 4.0% to 10.0% SiO2, 86% to 95% ZrO2, 0.1% to 1.2% B2O3, up to 0.04% Na2O, up to 0.4% CaO, up to 0.1% Fe2O3 and up to 0.25% TiO2.... Agent: Walker & Jocke, L.p.a.

20070249482 - Al2o3-rare earth oxide-zro2/hfo2 materials, and methods of making and using the same: Al2O3-rare earth oxide-ZrO2/HfO2 ceramics (including glasses, crystalline ceramics, and glass-ceramics) and methods of making the same. Ceramics according to the present invention can be made, formed as, or converted into glass beads, articles (e.g., plates), fibers, particles, and thin coatings. The particles and fibers are useful, for example, as thermal... Agent: 3m Innovative Properties Company

20070249483 - Lead and arsenic free optical glass with high refractive index: Lead and arsenic free, and preferably gadolinium and further preferably also fluorine free, optical glasses for the application fields mapping, projection, telecommunication, optical communication engineering, mobile drive, laser technology and/or micro lens arrays have a refractive index of 1.91≦nd≦2.05, an Abbe number of 19≦vd≦25 and have a low transformation temperature,... Agent: Striker, Striker & Stenby

20070243991 - Alkaline resistant phosphate glasses and method of preparation and use thereof: A substantially alkaline resistant calcium-iron-phosphate (CFP) glass and methods of making and using thereof. In one application, the CFP glass is drawn into a fiber and dispersed in cement to produce glass fiber reinforced concrete (GFRC) articles having the high compressive strength of concrete with the high impact, flexural and... Agent: Tirstan A. Fuierer Moore & Van Allen PLLC

20070243992 - Aluminoborosilicate glass: An aluminoborosilicate glass having a density less than 2.40 g/cm3 and a specific modulus of elasticity greater than 30 GPa·cm3·g−1 is disclosed that comprises the following components (in wt. %): SiO2 58-70, Al2O3 12-20, B2O3 5-15, MgO 0-9, CaO 2-12, BaO 0,1-5, SnO2 0-1, As2O3 0-2, the glass, apart from... Agent: Harness, Dickey & Pierce, P.L.C

20070243993 - Low solar absorbing blue glass, solar reflecting coated blue glass, and insulating unit having a low solar heat gain: An insulating unit having a neutral grey color and a solar heat gain coefficient less than 0.40 includes a clear glass sheet spaced from a coated glass sheet. The coated glass sheet includes a colored glass substrate having a solar infrared reflective coating. The composition of the coated substrate includes... Agent: Andrew C. Siminerio Ppg Industries, Inc.

20070243994 - Fused siliceous refractory and production method thereof: The present invention provides a fused siliceous refractory comprising fused silica and a fluoride. Also disclosed is a production method thereof.... Agent: Nixon & Vanderhye, PC

20070243995 - Corrosion-resistant fiberglass-reinforced plastic material: The present invention relates to the use of glass reinforcing yarns of given composition for obtaining plastics with improved resistance to corrosive, especially basic and acid, substances. It also relates to the composites comprising a plastic reinforced by such glass yarns.... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070238601 - High thermal expansion cyclosilicate glass-ceramics: The invention is directed to highly crystalline, frit-sintered glass-ceramic compositions having a coefficient of thermal expansion in the range of 85-115×10−7° C. The primary crystal phases of the glass-ceramics of the invention possess a cyclosilicate structure. The glass-ceramic of the invention are useful as metal-to-metal, metal-to-ceramic and ceramic-to-ceramic sealing agents,... Agent: Corning Incorporated

20070238599 - High thermal expansion cyclosilicate glass-ceramics: The invention is directed to highly crystalline, frit-sintered glass-ceramic compositions having a coefficient of thermal expansion in the range of 85-115×10−7° C. The primary crystal phases of the glass-ceramics of the invention possess a cyclosilicate structure. The glass-ceramic of the invention are useful as metal-to-metal, metal-to-ceramic and ceramic-to-ceramic sealing agents,... Agent: Corning Incorporated

20070238600 - Glass composition and laminated glass: A laminated glass having a low haze ratio and an excellent infrared rays shield performance and a glass composition suitable for use in a laminated glass and easy with respect to melting and molding works, which is a glass composition comprising 65 to 74% of SiO2, 0 to 5% of... Agent: Sughrue Mion, PLLC

20070238602 - Refractory article for guiding or conveying a solidified material and process for the manufacture thereof: The present invention relates to refractory articles for guiding or conveying a solidified material comprising a vitreous silica basis, in particular rollers or guiding elements and to a process for the manufacture of said articles which do not show the pickup problems normally observed with the articles of the art.... Agent: Vesuvius Crucible Company

20070238603 - Float bath bottom refractory brick and process for its production: A process for producing a float bath bottom refractory brick using a clayey material comprising from 30 to 45 mass % of Al2O3 and from 50 to 65 mass % of SiO2 and having a Na2O content of at most 1 mass %, wherein a potassium compound is added so... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070238604 - Sintered polycrystalline terbium aluminum garnet and use thereof in magneto-optical devices: A composition is provided that includes a plurality of calcined particles of terbium aluminum oxide having a mean particle domain size of between 30 and 600 nanometers. A translucent article having a surface includes polycrystalline terbium aluminum garnet having a mean grain size from 1 to 10 microns and light... Agent: Gifford, Krass, Sprinkle,anderson & Citkowski, P.c

20070232476 - Transparent glass ceramic plate that has an opaque, colored bottom coating over the entire surface or over part of the surface: A transparent, colorless lithium-aluminosilicate glass ceramic plate with high-quartz mixed crystals as the prevailing crystal phase, which is provided on one side with an opaque, colored, temperature-stable coating over the entire surface or over the entire surface to a large extent, is described, which has a content of Nd2O3 of... Agent: Millen, White, Zelano & Branigan, P.C.

20070232477 - Optical glass, preform for precision press molding, optical element and method of manufacturing thereof: with the combined quantity of the above components being 97 percent or greater. The molar ratio of {ZnO/(La2O3+Gd2O3+Y203)} is 0.8 or less and the molar ratio of {+SrO+BaO)/(La2O3+Gd2O3+Y203)} is 0.8 or less. Ta2O5 may be incorporated as an optional component, with the molar ratio {(ZrO2+Ta2O5)/(La2O3+Gd2O3+Y2O3)}being 0.4 or less. The present... Agent: Sughrue Mion, PLLC

20070232478 - Aluminoborosilicate glass: An aluminoborosilicate glass with a coefficient of thermal expansion CTE ≦3.3·10−6/K is disclosed, comprising the constituents (in wt. %): SiO2 58-70, Al2O3 17-18, B2O3 5-15, MgO 0-9, CaO 2-12, BaO 0.1-5, SnO2 0-1, As2O3 0-2, the glass, apart from random impurities, being free of strontium oxide and free of alkali... Agent: Harness, Dickey & Pierce, P.L.C

20070232479 - Sinterable nanopowder ceramic material and method for synthesis thereof: The invention provides a method of synthesizing a Si/C/N/Ea/Fb/Gc/O multielement nanopowder that is directly suitable for sintering, E, F, and G representing three distinct metallic elements other than Si, and at least one of a, b, and c being non-zero. The nanopowder is obtained by laser pyrolysis of an aerosol... Agent: Weingarten, Schurgin, Gagnebin & Lebovici LLP

20070232480 - Dielectric particles, dielectric ceramic composition, and method of production of same: Dielectric particles including a main component including barium titanate and R oxide (where R is at least one element selected from Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu), wherein when defining the size of the dielectric particles as “D” and... Agent: Oliff & Berridge, PLC