Compositions: ceramic inventions 11/07

20070275843 - Glass fiber for high temperature insulation: A glass composition is provided for the production of high temperature glass fibers with oxides comprising 1% to 15% Fe2O3+FeO as a fluidizer to lower liquidous temperature and the fiberizing temperature of a mix of high temperature oxides. The glass composition has therein an appropriate content of high temperature oxides... Agent: Boniard I. Brown

20070275844 - Synthetic fire opal: A synthetic fire opal having similar physical and chemical properties as natural fire opal. The synthetic fire opal is colored, hard, and transparent. The synthetic fire opal comprises SiO2 and water.... Agent: William L. Botjer

20070270299 - Glass-ceramics and methods of making same: A glass-ceramic and methods for making glass-ceramics that exhibit a combination of high hardness and high in-line transmission.... Agent: 3m Innovative Properties Company

20070270302 - Pressurelessly sintered zirconium diboride/silicon carbide composite bodies and a method for producing the same: A method of sintering a ZrB2—SiC composite body at ambient pressures, including blending a first predetermined amount of ZrB2 powder with a second predetermined amount of SiC powder, wherein both powders are characterized by the presence of surface oxide impurities. Next the blended powders are mixed to yield a substantially... Agent: Bingham Mchale LLP

20070270300 - Glass composition and method for production thereof, and glass substrate for information display device and information display device using the same: The glass composition of the present invention includes the following components, expressed in mass%: 70% to 88% of SiO2; 6% to 18% of B2O3; 0.5% to 4.5% of Al2O3; 0% to 0.5% of Li2O; 0% to 0.5% of Na2O; 2% to 10% of K2O; and 0% to 2% of MgO+CaO+SrO+BaO,... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20070270301 - Thermal method for fabricating a hydrogen separation membrane on a porous substrate: A thermal method of making a hydrogen permeable composition is disclosed. A mixture of metal oxide powder and ceramic oxide powder and optionally a pore former is formed and pressed to form an article. The article is dried at elevated temperatures and then sintered in a reducing atmosphere to provide... Agent: Harry M. Levy, Esq. Emrich & Dithmar, LLC.

20070270304 - Powder for black zirconia sintered body, production method thereof, and sintered body thereof: A zirconia-containing powder including 2 to 6 weight % of a pigment which has a spinel structure represented by the chemical formula (Co1-xZnx)(Fe1-yAly)2O4(0≦x≦0.5, 0<y≦0.5) or which is a coprecipitated material containing Co, Zn, Fe, and Al and has the same spinel structure after calcination, 0.05 to 6 weight % of... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070270303 - Reduced sweating azs product: An AZS type fused cast refractory product presenting the following chemical composition, as a percentage by weight: ZrO2: 15.5% to 22%; SiO2: 10.5% to 15%; Na2O+K2O+Li2O: 1.0% to 2.5%; impurities: <1%. Application to glass furnaces, in particular to the superstructures and crowns thereof.... Agent: Young & Thompson

20070265154 - Porcelain enamel having a metallic appearance: A porcelain enamel composition having a metallic appearance is disclosed. The composition comprises about 45% to about 55% SiO2, about 4 to about 20% R2O, about 9 to about 15% B2O3, about 4 to about 12% MnO2, about 1.5 to about 7% F2, about 0% to about 20% MO2, about... Agent: Rankin, Hill, Porter & Clark, LLP

20070265155 - Uv transmitting glasses: The present invention relates to a boroaluminosilicate glass which exhibits excellent UV transmission. In particular, the present invention is directed at an alkali fluorine-doped boroaluminosilicate glass comprising, in mole percent on the oxide basis, of 30-80% SiO2, 1-20% Al2(O, F2)3, 5-35% B2O3, 5-20% R2O, where R is Li, Na, K,... Agent: Corning Incorporated

20070265156 - Alkali-free aluminoborosilicate glass, and uses thereof: The invention relates to an aluminoborosilicate glass devoid of alkali, which has the following composition (in wt. % relative to the oxide content): SiO2>58-70; B2O3 0.5-<9; Al2O3 10-25; MgO>8-15; CaO 0-<10; SrO 0-<3; BaO 0-<2; with MgO+CaO+SrO+BaO>8-18; ZnO 0-<2. Said glass is eminently suitable for use as substrate glass, both... Agent: Millen, White, Zelano & Branigan, P.C.

20070259767 - Optically detectable, floatable arsenic- and antimony-free, glazable lithium-aluminosilicate glass: An optically detectable, floatable arsenic- and antimony-free, glazable lithium-aluminosilicate glass that can be prestressed and the glass ceramic converted therefrom are described. The glass or the glass ceramic has a composition (in % by weight based on oxide) of essentially SiO2 55-69, Al2O3 19-25, Li2O 3.2-5, Na2O 0-1.5, K2O 0-1.5,... Agent: Millen, White, Zelano & Branigan, P.C.

20070259768 - Nanocomposite ceramic and method for producing the same: A nanocomposite ceramic includes a uniform combination of a ceramic spinel phase and an alumina phase, wherein each phase exhibits a grain size in the range of from about 0.1 nm to 10,000 nm.... Agent: Kenneth Watov Watov & Kipnes, P.C.

20070259769 - Aluminum titanate ceramic articles and methods of making same: An aluminum titanate ceramic article having a predominant crystal phase of aluminum titanate and a material composition including aluminum, titanium, silica, an alkaline earth metal (e.g., at least one selected from the group of strontium, calcium, barium, or combinations), and a rare earth metal (e.g., at least one selected from... Agent: Corning Incorporated

20070254796 - Method and apparatus for preventing catastrophic contact failure in ultra high temperature piezoresistive sensors and transducers: A method to prevent the catastrophic failure of electrical contacts of silicon piezoresistive transducers located on a silicon wafer at temperatures above 600° C. comprising the steps of using a lead-free glass frit to surround the contacts and bonding the sensor wafer to a glass wafer employing a lead-free glass... Agent: Plevy, Howard & Darcy, P.C.

20070254797 - Glass composition for lamp and lamp manufactured from the same: A glass composition for lamps includes: SiO2 (silicon dioxide) as a main component; Na2O (sodium oxide) in the range of 12 to 17 wt. %; MgO (magnesium oxide) in the range of 2.5 to 4 wt. %; and CaO (calcium oxide) in the rage of 5.3 to 7.3 wt. %,... Agent: Snell & Wilmer L.L.P. (matsushita)

20070254798 - Peroxide containing compounds as pore formers in the manufacture of ceramic articles: A method for manufacturing porous ceramic articles comprised of a primary sintered phase ceramic composition. The method includes the steps of providing a plasticized ceramic precursor batch composition including ceramic forming inorganic batch components; a liquid vehicle; an organic binder system; and a pore forming agent comprising at least one... Agent: Corning Incorporated

20070254799 - Dielectric ceramics and multi-layer ceramic capacitor: m