|
Match
|
Document |
Document Title |
|
|
7585806 |
Catalyst compositions and process for oxychlorination
Oxychlorination catalyst compositions which include a catalytically effective amount of an oxychlorination catalyst and a diluent having certain chemical composition and/or physical properties are...
|
|
|
7563293 |
Al2O3-rare earth oxide-ZrO2/HfO2 materials, and methods of making and using the same
Al 2 O 3 -rare earth oxide-ZrO 2 /HfO 2 ceramics (including glasses, crystalline ceramics, and glass-ceramics) and methods of making the same. Ceramics according to the present invention can be...
|
|
|
7507268 |
Al2O3-Y2O3-ZrO2/HfO2 materials, and methods of making and using the same
Al 2 O 3 —Y 2 O 3 —ZrO 2 /HfO 2 ceramics (including glasses, crystalline ceramics, and glass-ceramics) and methods of making the same. Ceramics according to the present invention can be made,...
|
|
|
7381258 |
Opaque dental ceramic—method of production and use therof
The invention relates to an opaque dental ceramic for burning on a rack or implant of dental restoration at least comprising SiO 2 , Al 2 O 3 , B 2 O 3 , Na 2 O, K 2 O as well as TiO 2 . To cover...
|
|
|
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...
|
|
|
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 SiO 2 , Al 2 O 3 , P 2 O 5 , Na 2 O, K 2 O, CaO and...
|
|
|
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...
|
|
|
7166548 |
Apatite glass ceramic based on siliceous oxyapatites
Apatite glass ceramic which contains at least one glass phase and at least one apatite phase and is characterized in that at least one of the apatite phases is a phosphate- and fluorine-free...
|
|
|
7151063 |
Glass for multilayer film filter and method for manufacturing the glass
Glass can have a high thermal expansion coefficient when it is made up of SiO 2 , B 2 O 3 , Na 2 O, K 2 O, MgO and Al 2 O 3 ; contains a partial crystal; and has a mean linear expansion coefficient...
|
|
|
7141521 |
Flat float glass
This invention relates to a flat float glass that can be prestressed or transformed into a glass ceramic with high quartz mixed crystals or keatite mixed crystals. To eliminate undesirable surface...
|
|
|
7091142 |
Glass-ceramic and its production and use
The invention encompasses a glass-ceramic comprising a continuous glass phase and a crystal phase comprising tetragonal leucite, wherein the glass-ceramic has a crack-free glass phase and a crystal...
|
|
|
7008891 |
Crystallized glass for optical filter substrate, and optical filter
A crystallized glass for an optical filter substrate, which has an average linear expansion coefficient α L of from 95×10 −7 /° C. to 130×10 −7 /° C. at from −30° C. to 70° C. and...
|
|
|
6946414 |
Glass-ceramics, process for the their preparation and use
Glass-ceramic consisting of: SiO 2 : −30-70 wt %; A1 2 O 3 : 8-45 wt %; M 2 O:8-30 wt %; MO: 0-30 wt %; B 2 O 3 : 0-15 wt %; P 2 O 5 : 0-15 wt %; Zr 2 O: 0-12 wt %; TiO 2 : 0-12 wt %, wherein M...
|
|
|
6821628 |
Glass-ceramic cooking panel that makes deposited material, such as dirt, less conspicuous
The cooking panel is made from an opaque glass-ceramic material uniformly colored throughout and having keatite mixed crystals as the predominant crystalline phase. The cooking panel is made by...
|
|
|
6770111 |
Pollucite-based ceramic with low CTE
A ceramic structure which is pollucite-based and has high refractoriness and high resistance to thermal shock. The inventive structure is suitable in high temperature applications such as a...
|
|
|
6753070 |
Insulating ceramic compact, ceramic multilayer substrate, and ceramic electronic device
An insulating ceramic compact is provided which can be obtained by low-temperature firing, has a low relative dielectric constant and superior high frequency characteristics, and can be co-sintered...
|
|
|
6673433 |
Stainproof material and method for manufacturing the same, and coating composition and apparatus thereof
Disclosed are antifouling material possessing excellent surface antifouling properties, particularly excellent antifouling activity against greasy stains and soils, a process for producing the...
|
|
|
6660073 |
Method of manufacture of dental porcelain having small leucite crystallites
A porcelain composition for dental restorations comprising a leucite crystallite phase and a glass matrix phase, wherein the leucite crystallites possess diameters not exceeding about 10 micron....
|
|
|
6645285 |
Machinable glass-ceramics
Micaceous glass-ceramics are useful in the fabrication of single and multi-unit dental restorations including but not limited to orthodontic appliances, bridges, space maintainers, tooth...
|
|
|
6342302 |
Ceramic dental restoration
A ceramic restoration based on a leucitic glass-ceramic, which is characterized in that the glass-ceramic includes by way of components 40-95 wt.-% SiO 2 5-25 wt.-% Al 2 O 3 5-25 wt.-% K 2 O 0-25...
|
|
|
6133174 |
Machinable leucite-containing porcelain compositions and methods of manufacture
A method for producing a machinable feldspathic porcelain comprising leucite is presented. Machinability is imparted to feldspathic porcelains by achieving homogeneous distribution of fine...
|
|
|
6120591 |
Low fusing dental porcelains containing fine-grained leucite
A dental porcelain composition, comprising a glassy matrix and leucite crystallites embedded therein, and having maturing temperatures in the range from about 600° C. to about 885° C. and CTEs in...
|
|
|
6086977 |
Substrates for magnetic discs, magnetic discs and process for producing magnetic discs
A magnetic disc substrate is provided, which includes a magnetic disc substrate body made of glass and is characterized in that a metal element capable of absorbing light is present in at least a...
|
|
|
6086662 |
Low fusing dental porcelains containing tetragonal rubidium-leucite
A dental porcelain composition, comprising a glassy matrix and rubidium leucite crystallites embedded therein, and having maturing temperatures in the range from about 650° C. to about 800° C....
|
|
|
6080692 |
High-strength, translucent mica glass-ceramics
The invention relates to a glass ceramic in which mica and ZrO 2 are present in crystallized form, containing: K 2 O: 0-9% by weight Na 2 O: 0-9% by weight with the condition that Na 2 O...
|
|
|
5994246 |
Low expansion feldspathic porcelain
A feldspathic porcelain composition is provided which comprises a continuous glassy matrix phase and a discontinuous, substantially uniformly dispersed cubic leucite crystalline phase, said...
|
|
|
5944884 |
Dental porcelain composition
A porcelain composition for dental restorations comprising a leucite crystallite phase and a glass matrix phase, wherein the leucite crystallites possess diameters not exceeding about 10 micron....
|
|
|
5925180 |
ZrO.sub.2 -containing glass-ceramic
A ZrO 2 -containing glass ceramic is described, the main crystalline phase of which is formed by ZrO 2 and which has at least one further crystalline phase, and which can be used in particular in...
|
|
|
5877101 |
Glass-ceramic composite
A glass-ceramic composite which has forsterite in an amount of 40 to 60% by weight is included in crystallized glass having a coefficient of thermal expansion of 100° to 200×10 -7 /°C. is used...
|
|
|
5866240 |
Thick ceramic on metal multilayer circuit board
Multilayer green tape stacks having sufficient layers so that the fired stack is at least 2 millimeters in thickness on a metal support substrate are made by interleaving two types of green tapes...
|
|
|
5786288 |
Low dielectric ceramic compositions for multilayer ceramic package
A crystallizable ceramic composition for forming a ceramic dielectric body having a dielectric constant in the range of 4.8-5.3 at 1 MHz and a linear thermal expansion coefficient of 4.0-5.1×10 -6...
|
|
|
5744208 |
Glass-ceramics containing lithium disilicate and tridymite
This invention is directed at the makings of glass-ceramic which is uniquely suited for use as a disc substrate for utilization in a magnetic memory storage device. The glass ceramic material...
|
|
|
5698019 |
Leucite-containing phosphosilicate glass-ceramic
A leucite-containing phosphosilicate glass-ceramic is described which, in addition to a leucite crystalline phase and at least one further crystalline phase, also contains one or more glass phases.
|
|
|
5653791 |
Two-phase dental forcelain composition
A two-phase porcelain composition for dental restorations comprising a leucite crystallite phase dispersed in a feldspathic glass matrix, a maturing temperature of from about 750° to about 1050°...
|
|
|
5622551 |
Chemically derived leucite
Chemically derived leucite is claimed. The chemically derived leucite is obtained from a stable dispersion of a potassia precursor, an alumina precursor and a silica precursor having a specified...
|
|
|
5618763 |
Alkali-zinc-silicate glass-ceramics and glasses
Alkali-zinc-silicate glass ceramics and glasses are described which have a linear thermal expansion coefficient in the range from 8.0 to 18.7×10 -6 K -1 , an excellent chemical resistance and...
|
|
|
5597644 |
Ceramic circuit board and process for producing same
A ceramic circuit board comprises a ceramic substrate having a glaze film formed thereon, the glaze film being overlaid with a functional thin film such as a ferromagnetic film serving as a...
|
|
|
5514451 |
Conductive via fill inks for ceramic multilayer circuit boards on support substrates
Conductive via fill inks for green tapes to be stacked and bonded to a support substrate, the glass used for the green tape having a firing temperature from 850°-950° C., wherein the glass used...
|
|
|
5466285 |
Dental porcelain material preventing yellow coloration and method for producing same
A dental porcelain material free of yellow coloring or opacification upon firing is produced. A powder mixture is prepared by adding 0.1 to 2.0 wt % of antimony trioxide and 0.01 to 5 wt % of...
|
|
|
5422319 |
Fiber reinforced ceramic matrix composites exhibiting improved high-temperature strength
Novel oxide coatings which can be conveniently applied to reinforcing fibers such as silicon carbide fibers, and which when introduced as a fiber coating into fiber reinforced ceramic matrix...
|
|
|
5411803 |
Granular materials having an improved ceramic coating, methods of preparing same, and composite sheets including same
A granular material which includes an inorganic substrate and a ceramic coating shows improved adhesion to bituminous surfaces, decreased alkalinity, and, when formulated as a three coated...
|
|
|
5391522 |
Glass-ceramic for magnetic disks and method for manufacturing the same
A glass-ceramic for a magnetic disk substrate in which the grain size can be controlled and the surface roughness after polishing is within the range from 15 Å to 50 Å is provided by heat...
|
|
|
5336477 |
Process for producing a composite alkali metal oxide
There is provided a composite oxide represented by the formula iR 2 O.jAl 2 O 3 .kTiO 2 .mSiO 2 .nH 2 O wherein R denotes an alkali metal, i is 0.3 to 1, k is 0 to 0.9, j+k=1, m is 7 to 70 and...
|
|
|
5330842 |
Surface treated vestibule block and process of making the same
A vestibule block or interior furnace wall utilized in a diffusion furnace for manufacturing semi-conductors, integrated circuits and the like, and which is made of refractory or ceramic material,...
|
|
|
5312787 |
Ceramics composite material and method of producing the same
A ceramics composite material containing crystallized glass as the matrix and fibers or whiskers of ceramics as a reinforcement material, is obtained by melting original glass to form crystallized...
|
|
|
5262142 |
Composite oxide of formula R.sub.2 O.Al.sub.2 O.sub.3.TiO.sub.2.SiO.sub.2.H.sub.2 O, where R is an alkali metal
There is provided a composite oxide represented by the formula iR 2 O.jAl 2 O 3 .kTiO 2 .mSiO 2 .nH 2 O wherein R denotes an alkali metal, i is 0.3 to 1, k is 0 to 0.9, j+k=1, m is 7 to 70 and...
|
|
|
5190895 |
Ceramics composite material
A ceramics composite material containing crystallized glass as the matrix and fibers or whiskers of ceramics as a reinforcement material, is obtained by melting original glass to form crystallized...
|
|
|
5179051 |
High density lithium-based ceramics from zeolites
This invention relates to a process for preparing a lithium containing ceramic article. The process provides a ceramic article that is substantially crack free and has as its principal crystalline...
|
|
|
5102833 |
Strengthening glass articles with electromagnetic radiation and resulting product
Alkali metal- and alkaline earth metal-oxide aluminosilicate amorphous glass articles can be strengthened by providing such glass with a cerium dioxide sensitizer and a nucleating agent,...
|
|
|
5094677 |
Preparation of pollucite ceramics
The present invention is directed to a method for synthesizing highly crystalline pollucite articles at temperatures not exceeding 1650° C. The method comprises two general steps: (a) a glass...
|