Compositions: ceramic inventions 08/09

20090215605 - Process of producing a glass-ceramic, the glass-ceramic made therby and its uses: The process of making the glass-ceramic includes ceramicizing a starting glass at a heating or cooling rate during the ceramicization of at least 10 K/min, so that the glass-ceramic contains at least 50% by volume of ferroelectric crystallites with a maximum diameter of from 20 to 100 nm and not... Agent: Michael J. Striker

20090215606 - Sol-gel process: Sol-gel process comprising preparation of a solution of at least one compound having the formula Xm-M-(OR)n-m addition to the solution of the dopants, hydrolysis of the compound to form the sol, possible addition of an oxide, gelling the sol, recycling the liquid and adjusting the pH-value of the liquid in... Agent: Smith, Gambrell & Russell, LLP Suite 3100

20090215607 - Fining agents for silicate glasses: A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent... Agent: Corning Incorporated

20090215608 - Oxyhalide glass fining: The invention is directed to oxyhalide fining agents for glass and processes for making glass using such a fining agent.... Agent: Corning Incorporated

20090215609 - Zirconium-base sintered product: The inventive sintered product is produced from an initial feedstock having a zirconium content ranging from 75 to 99% and the following average chemical weight composition, in percentage by weight, based on oxides: 60 %=ZrO2+HfO2=75%, 27%=SiO2=34%, 0.2=TiO2=1.5 %, 0.3<Y2O3=3.5 %, other oxides:=1%, to give a total of 100%. Said product... Agent: Young & Thompson

20090209405 - Method for synthesizing bulk ceramics and structures from polymeric ceramic precursors: A method and product made by using a polymeric ceramic precursor to synthesize dense, crack-free bulk ceramics in a technique using a sacrificial mold provides a ceramic structure for many technical, medical and industrial applications. The novel process uses an open cell material as a sacrificial mold to shape a... Agent: Brian Steinberger/ucf

20090203511 - Synthetic silica glass optical material having high resistance to laser induced damage: Disclosed is a synthetic silica glass optical material having high resistance to optical damage by ultraviolet radiation in the ultraviolet wavelength range, particularly in the wavelength less than about 250 nm and particularly, exhibiting a low laser induced wavefront distortion; specifically a laser induced wavefront distortion, measured at 633 nm,... Agent: Corning Incorporated

20090203512 - Halide free glasses having low oh, od concentrations: A fused silica glass having a refractive index homogeneity of less or equal to about 5 ppm over an aperture area of at least about 50 cm2. The fused silica glass is also substantially free of halogens and has an adsorption edge of less than about 160 nm. The glass... Agent: Corning Incorporated

20090203513 - Glass member for optical parts and glass composition used therefor: There is provided a glass member for optical parts that represents a greater absolute value |Δn| of refractive index difference Δn of visual light between base glass and heterogeneous phase region. In the glass member for optical parts, the heterogeneous phase region distinguishable by a different refractive index is formed... Agent: Squire, Sanders & Dempsey L.L.P.

20090203514 - Method for producing an oil-binding agent and oil-binding: The invention relates to a method for producing an oil-binding agent of granular open-porous structure with a silicate ceramic matrix by using recovered paper material and clay. The method is characterized in that, in each case based on the entire raw material, 35 to 60 wt.-% sewage sludge with a... Agent: K.f. Ross P.C.

20090203511 - Synthetic silica glass optical material having high resistance to laser induced damage: Disclosed is a synthetic silica glass optical material having high resistance to optical damage by ultraviolet radiation in the ultraviolet wavelength range, particularly in the wavelength less than about 250 nm and particularly, exhibiting a low laser induced wavefront distortion; specifically a laser induced wavefront distortion, measured at 633 nm,... Agent: Corning Incorporated

20090203512 - Halide free glasses having low oh, od concentrations: A fused silica glass having a refractive index homogeneity of less or equal to about 5 ppm over an aperture area of at least about 50 cm2. The fused silica glass is also substantially free of halogens and has an adsorption edge of less than about 160 nm. The glass... Agent: Corning Incorporated

20090203513 - Glass member for optical parts and glass composition used therefor: There is provided a glass member for optical parts that represents a greater absolute value |Δn| of refractive index difference Δn of visual light between base glass and heterogeneous phase region. In the glass member for optical parts, the heterogeneous phase region distinguishable by a different refractive index is formed... Agent: Squire, Sanders & Dempsey L.L.P.

20090203514 - Method for producing an oil-binding agent and oil-binding: The invention relates to a method for producing an oil-binding agent of granular open-porous structure with a silicate ceramic matrix by using recovered paper material and clay. The method is characterized in that, in each case based on the entire raw material, 35 to 60 wt.-% sewage sludge with a... Agent: K.f. Ross P.C.

20090197754 - Optical glass: P

20090197755 - Optical glass: An optical glass having optical constants of a refractive index (nd) of 1.78 or over, an Abbe number (v d) of 30 or below, and a partial dispersion ratio (θ g, F) of 0.620 or below comprises SiO2 and Nb2O5 as essential components, wherein an amount of Nb2O5 in mass... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20090197756 - Water-based ceramic foams showing improved gel strength: A method of preparing a gelled ceramic-based foam comprising forming a slurry comprising at least water, a ceramic, albumin and an aldehyde, such that the ratio of the aldehyde to the albumin is from about 60:1 to about 200:1, and frothing the slurry, such that the albumin polymerizes to form... Agent: The Dow Chemical Company

20090197757 - Zinc oxide ceramics and a manufacturing method for the same, a sputtering target: Densified zinc oxide ceramics can be obtained so that transparent electrodes with good characteristics can be obtained using the ceramics as a sputtering target. This manufacturing method is used to manufacture the zinc oxide ceramics doped with Al in ZnO. This method comprises, calcination powder production process by which calcination... Agent: Akerman Senterfitt

20090197758 - Hafnia-modified rare-earth metal-based ceramic bodies and casting processes performed therewith: Compositions suitable for use as cores and shell molds for casting of reactive metal alloys, and casting processes for producing components from such alloys. The composition contains a sintered particulate material of hafnia and at least one additional metal oxide in amounts to yield a ceramic composition containing up to... Agent: Hartman & Hartman, P.C.