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8178476 |
Proppant having a glass-ceramic material
The present invention relates to glass-ceramic proppants which can be used to prop open subterranean formation fractions, as well as other uses. Proppant formulations are further disclosed which...
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8143178 |
Blue beta-quartz glass-ceramic materials, articles made thereof, and fabrication process
The present invention discloses a blue transparent glass-ceramic material comprising β-quartz solid solution as a predominant crystalline phase and process for making same. The glass-ceramic ...
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8143179 |
Transparent, colorless titania-free beta-quartz glass-ceramic
The invention relates to a transparent and essentially colorless β-quartz glass-ceramic material which is free of TiO2, As2O3, Sb2O3 and phosphates; articles formed from said glass-ceramic ...
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8127571 |
Method of refining a lithium aluminosilicate glass and glass-ceramic obtained
The present invention relates to a method of refining lithium aluminosilicate glass capable of being controllably ceramized and free of arsenic oxide, antimony oxide and tin oxide, in which at...
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8114795 |
Glass-ceramics and method for manufacturing the same
For providing glass-ceramics having properties suitable for use as a substrate of an information storage medium of next generation such as one for the perpendicular magnetic recording system...
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8071493 |
Crystallized glass
In all of an in-plane magnetic recording system and a perpendicular magnetic recording system, there is provided a crystallized glass for a disk substrate for information recording medium, etc.,...
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8063000 |
Low bulk density proppant and methods for producing the same
Materials and methods for making low bulk density proppant capable of providing permeability at subterranean pressures. The low bulk density proppant is made from kaolin clay and at least one of...
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8053381 |
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...
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8043985 |
Crystallized glass, and method for producing crystallized glass
Provided are SiO2—Al2O3-based or Li2O—Al2O3—SiO2-based crystallized glass which has various properties intrinsic to the crystallized glass of the type and which contains an arsenic component or an...
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8043706 |
Inorganic composition article
An inorganic composition article used in disk substrate for information recording media, with a low melting point and a high productivity, combining superior surface characteristics capable of...
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7981823 |
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,...
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7943539 |
Glass-ceramics and method for manufacturing the same
There are provided glass-ceramics comprising, in mass %, 50-60% SiO2, 22-26% Al2O3 and 3-5% Li2O, having an average crystal grain diameter exceeding 100 nm, and having an average linear thermal...
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7907347 |
Optical composite material and method for its production
An optical composite material comprises an amorphous optical material (6) with a first refractive index (na), into which crystalline nanoparticles (7) having a second, higher refractive index (nn)...
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7875565 |
Transparent glass-ceramic armor
The invention is directed to transparent glass-ceramic materials for use in transparent armor systems. Applications include armor systems for ground vehicles and aircraft as well as personal...
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7832233 |
Method of making staged burnout enamels for second surface firing of multilayer glass structures
The present invention provides a method of making a decorated multilayer glass structure using a single firing step that includes that use of a crystallizing glass enamel composition that contains...
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7794625 |
Preparation of a composition of a swelling tot-tot interlayer
A method for preparing a composition including mineral particles, that is swelling TOT-TOT interlayer particles, formed by interlayering between: at least one non-swelling mineral phase formed by a...
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7704903 |
Antimicrobial phosphate glass with adapted refractive index
The invention provides an antimicrobial phosphate glass composition including, in weight percent based on oxide: greater than 45 to 90 of P2O5, 0 to 60 of B2O3, 0 to 40 of SiO2, 0 to 20 weight...
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7678720 |
Glass ceramics comprising beta-quartz or beta-quartz solid solution
Glass-ceramics includes Li2O, Al2O3 and SiO2, have an average crystal grain diameter of a predominant crystal phase of 90 nm or below and have crystal grain diameter distribution of 20 nm or below....
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7665330 |
Method for manufacturing glass-ceramics
Glass-ceramics includes Li2O, Al2O3 and SiO2, have an average crystal grain diameter of a predominant crystal phase of 90 nm or below and have crystal grain diameter distribution of 20 nm or below....
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7645714 |
Crystallized glass, and method for producing crystallized glass
Provided are SiO2—Al2O3-based or Li2O—Al2O3—SiO2-based crystallized glass that solves the cause of cracking and fracture in forming it into large-size shaped articles, that has homogeneous inner...
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7591961 |
Translucent piezoelectric glass ceramic
A translucent piezoelectric glass ceramic is disclosed. The glass ceramic is prepared from a precursor glass by a ceraming process, using a temperature gradient to effect the precipitation of...
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7589038 |
Inorganic composition
The present invention provides an inorganic composition for use in information recording medium disc substrate and such, having an excellent surface property capable of sufficiently corresponding...
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7524072 |
Optical component, comprising a material with a predetermined homogeneity of thermal expansion
There is provided an optical component. The optical component includes a material having a coefficient of thermal expansion α, where the coefficient of thermal expansion is dependent on location. ...
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7507681 |
Glass-ceramic, articles and fabrication process
Bi-containing glass-ceramic material, especially those containing β-quartz and/or β-spodumene solid solutions as the predominant crystalline phase, and the precursor glass material as well as p...
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7501365 |
Lithium-aluminosilicate glass ceramic with high keatite content and structural member made thereof
A lithium-aluminosilicate glass ceramic is transformed by a suitable heat treatment into a glass ceramic comprising at least 80 vol.-% of keatite mixed crystals. This may be utilized for the...
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7494610 |
Methods for fabricating zeolite micromembranes
A method of activating a zeolite membrane comprising a step of placing the membrane in contact with a fluid mixture containing ozone, wherein when the fluid mixture is a gaseous mixture, the fluid...
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7476633 |
β-spodumene glass-ceramic materials and process for making the same
The present invention relates to glass-ceramic materials, processes for making the same and articles comprising the same. The glass-ceramic material has a composition, by weight of the total...
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7473660 |
β-quartz and/or β-spodumene glass ceramic
The present application discloses: (i) novel glass-ceramic materials containing a solid solution of b-quartz or of β-spodumene as main crystalline phase(s); (ii) articles made from said novel ...
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7456121 |
Glass-ceramic materials, precursor glass thereof and process-for making the same
The present invention relates to: novel glass-ceramics of β-quartz and/or of β-spodumene; articles made from said novel glass-ceramics; and ithium alumino-silicate glasses, which are precursors o...
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7404840 |
Chemically stabilized β-cristobalite and ceramic bodies comprising same
A method for rigidifying a fiber-based paper substrate for use in the exhaust system of a combustion device. In the method, a green ceramic fiber-based paper substrate is impregnated with an...
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7387838 |
Low loss glass-ceramic materials, method of making same and electronic packages including same
A glass-ceramic is provided having a thermal expansion coefficient in a range of 3-6 ppm/° C., a dielectric constant that is less than 5 and a Quality factor Q of at least 400. The glass-ceramic ...
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7306845 |
Optical materials and optical devices
Nanoscale particles, particle coatings/particle arrays and corresponding consolidated materials are described based on an ability to vary the composition involving a wide range of metal and/or...
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7297645 |
Opalescent glass-ceramic product
An opalescent glass-ceramic product, especially for use as a dental material or as an additive to or component of dental material, including SiO2, Al2O3, P2O5, Na2O, K2O, CaO and Me(IV))O2. In...
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7264894 |
Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate
Enclosed are crystallized glasses suitable for a substrate for an information recording medium such as a magnetic disc, optical disc, or optomagnetic disc, a substrate for information recording...
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7226881 |
Ultra low thermal expansion transparent glass ceramics
There are provided glass-ceramics having an ultra low thermal expansion property and super flat surface capable of coping with lithography for the next generation LSI and component parts for...
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7220690 |
Glass ceramic having a low thermal expansion
The present invention relates to a novel glass ceramic having a low or small average thermal expansion together with good polishability and processability, to the use of the glass ceramic according...
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7205252 |
Method of making a glass-ceramic article
The method produces a glass-ceramic article substantially in the form of a plate with improved high temperature difference resistance or strength. The glass-ceramic article contains keatite mixed...
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7186461 |
Glass-ceramic materials and electronic packages including same
A glass-ceramic is provided having a thermal expansion coefficient in a range of 4.0 to 8.5 ppm/° C., a dielectric constant in a range of 5–7 and a Quality factor Q of at least 400. The gl...
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7172649 |
Leucite glass ceramic doped with nanoscale metal oxide powder, method for producing the same, and dental materials and dental products formed therefrom
The disclosure relates to a leucite glass ceramic doped with nanoscale metal oxide, to a doped leucite glass ceramic powder suitable for its production, to a method for producing the doped leucite...
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7169476 |
Zinc oxide-alumina-silica-based crystallized glass
A zinc oxide-alumina-silica-based crystallized glass is provided, containing zinc oxide, alumina and silica as main components, and zirconia as a nucleating agent. The main components are provided...
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7153795 |
Glass and glass-ceramic materials, articles and method of preparing the same
The present invention relates to novel glass and glass-ceramic materials, articles made from said novel glass-ceramics and to methods of preparing said novel glass-ceramics and articles. Said...
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RE39437 |
Negative thermal expansion glass ceramic
A negative thermal expansion glass ceramic having a negative coefficient of thermal expansion, which is a sufficiently large absolute value in a temperature range of −40° C. to +160° C. and a met...
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7148164 |
Low expansion transparent glass-ceramics, glass-ceramic substrate and optical waveguide element
There are provided low expansion transparent glass-ceramics obtained by heat treating a base glass produced at a relatively low melting temperature of 1530° C. or below. The glass-ceramics have an ...
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7106941 |
Substrate for optical communication device, method for production thereof and optical communication device using the same
The optical communication device substrate according to the present invention includes one of ceramic and glass ceramic each having an average thermal expansion coefficient of −55 to −...
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7091141 |
Lamp reflector substrate, glass, glass-ceramic materials and process for making the same
The present invention relates to glass, glass-ceramic materials, lamp reflectors and processes for making them. The glass material has a composition, by weight of the total composition, comprising...
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7071131 |
Cerammable mineral glass, glass-ceramic articles and preparation thereof
The present invention relates to novel mineral glasses which are cerammable and which have a composition, expressed in percentages by weight of oxides, consisting essentially of: SiO2 65–70; A...
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7056848 |
Nonporous keatite glass ceramic support plate for transporting products during heat treatment, method of making same and method of transporting products therewith
The support plate for transporting products during thermal treatment at firing temperatures is a nonporous keatite glass ceramic supporting member without a glassy surface layer. It has a nubby...
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7031428 |
Substrate material for X-ray optical components
There is provided a substrate material for an optical component for X-rays of wavelength λR. The substrate includes (a) a glass phase made of amorphous material having a positive coefficient of ...
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6960399 |
Crystalized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate
Enclosed are crystallized glasses suitable for a substrate for an information recording medium such as a magnetic disc, optical disc, or optomagnetic disc, a substrate for information recording...
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6893728 |
Low temperature-fired porcelain and electronic parts
The present invention provides a low temperature fired porcelain comprising crystalline phases including sanbornite, celsian and β-cristobalite phases when measured by a high power X-ray ...
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