Compositions: ceramic inventions 07/07

20070167307 - Novel composition: A composition with a Mohs hardness of at least 6.0, wherein said composition contains at least 30 weight percent of spinel crystals, at least 10 weight percent of glass, and less than 10 weight percent of ferrometalsilicate. The composition also contains particles with a particle size distribution such that at... Agent: Howard J. Greenwald P.C.

20070167308 - Refractory material for cement industry kilns and use thereof: The present invention provides refractory materials for the kilns in the cement industry. The refractory material comprises andalucite, silicon carbide, and clay, or kaolinite, silicon carbide, and clay. The refractory materials can be configured as bricks such as fired refractory firebricks or formless configurations such as mortar. The material can... Agent: Law Offices Of Albert Wai-kit Chan, LLC

20070161492 - Colored glass compositions: A glass composition is disclosed. The glass composition includes base glass composition including SiO2 from 65 to 75 weight percent, Na2O from 10 to 20 weight percent, CaO from 5 to 15 weight percent, MgO from 0 to 5 weight percent, Al2O3 from 0 to 5 weight percent, K2O from... Agent: Jacques B. Miles Ppg Industries, Inc.

20070161493 - Wear resistant member comprised of silicon nitride and process for producing the same: A silicon nitride abrasion resistant member is formed of silicon nitride sintered body containing 2% to 4% by mass of a rare earth element in terms of oxide thereof as a sintering aid, 2% to 6% by mass of an Al component in terms of oxide thereof, and 2% to... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070161494 - Non-oxide ceramic having oxide layer on the surface thereof, method for production thereof and use thereof: A non-oxide ceramics having improved performances and functions by forming a high-quality oxide film on the surface of a non-oxide ceramics such as aluminum nitride. The method for the formation of the non-oxide ceramics comprises the steps of: (1) providing a non-oxide ceramics; (2) introducing the non-oxide ceramics into a... Agent: The Webb Law Firm, P.C.

20070161495 - High thermally conductive aluminum nitride sintered product: The high thermal conductive aluminum nitride sintered body according to the present invention has: a thermal conductivity of 220 W/m·K or more; and a three point bending strength of 250 MPa or more; wherein a ratio (IAl2Y4O9/IAlN) of X-ray diffraction intensity (IAl2Y4O9) of Al2Y4O9 (201 plane) with respect to X-ray... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070161496 - Manufacture of environmentally friendly carbon-bonded refractory product in the cold mixing process: The invention relates to a method for manufacturing carbon-bonded refractory products from refractory granulations and organic binder agents, wherein a powdery, graphitable coal-tar pitch with a benzo [a]pyrene content less than 500 mg/kg and a coking value of at least about 80% by weight according to DIN 51905 and a... Agent: Ohlandt, Greeley, Ruggiero & Perle, LLP

20070161498 - Dielectric porcelain and producing method thereof: One inventive aspect provides a dielectric porcelain having a high permittivity and a producing method therefor, by sintering a perovskite type oxide at a low temperature, utilizing a sintering additive in an amount less than in the related technology. One embodiment provides a dielectric porcelain including, after sintering, a perovskite... Agent: Knobbe Martens Olson & Bear LLP

20070161497 - Ferroelectric ceramic composition and applied ferroelectric element including same: Disclosed is a ferroelectric ceramic composition that does not contain harmful lead and that have satisfactory sinterability, as well as a nonlinear optical element including the ferroelectric ceramic composition. The ferroelectric ceramic composition includes a main component represented by a general formula (Ba1-x-ySrxCay)Ag1-dNb5O15-d/2 and having a tungsten bronze structure; and... Agent: Dickstein Shapiro LLP

20070161499 - Yttria sintered body and corrosion-resistant material, and manufacturing method: The object of the present invention is to provide an yttria (Y2O3) sintered body having high density and excellent plasma-resistance. The yttria sintered body has a structure in which a Y2O3 crystal and a Y3BO6 crystal are included as the constituent crystal thereof. In order to produce the yttria sintered... Agent: Carrier Blackman And Associates

20070155609 - Composition of paste, green sheet for barrier ribs of plasma display panel, and plasma display panel using the same: A composition of paste and a green sheet for forming double-layered barrier ribs for use in PDPs, and the PDPs using the same is provided. A composition of paste for use in barrier ribs in PDPs comprises about 30 wt % to 60 wt % of a Pb-free glass powder,... Agent: Birch Stewart Kolasch & Birch

20070155610 - Silico-sodo-calcic glass composition: c

20070155611 - Silicoboroncarbonitride ceramics and precursor compounds, method for the production and use thereof: The present invention relates to novel alkylhalosilylaminoboranes, in particular alkylchlorosilylaminoboranes, which make it possible to adjust the viscosity of polyborosilazane compounds by varying the number of reactive centers, to novel borosilazane compounds, to novel oligoborosilazane or polyborosilazane compounds which have the structural feature R1—Si—NH—B—R2, where R1 or R2 or both... Agent: Sutherland Asbill & Brennan LLP

20070155612 - Thermally stable ceramic media for use in high temperature environments: A chemical processing apparatus that utilizes a ceramic media sintered at a lower temperature than the apparatus' maximum exposure temperature is described. The media's physical and chemical properties may contribute to its thermal stability when exposed to temperatures that exceed the media's sintering temperature by at least 50° C.... Agent: Saint-gobain Corporation

20070155613 - Dielectric ceramic composition, electronic device, and multilayer ceramic capacitor: A dielectric ceramic composition comprised of at least dielectric particles having barium titanate as its main ingredient, wherein the ratio of dielectric particles having a surface diffusion structure comprised of a main ingredient phase comprised of the main ingredient and a diffusion phase present around the ingredient phase with respect... Agent: Oliff & Berridge, PLC