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6906009 |
Drilling fluid containing microspheres and use thereof
The present invention provides a drilling fluid composition and a method of drilling comprising a drilling fluid, which may be oil- or water-based, and a composite microsphere component. The...
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EP0740581B1 |
YTTRIA PARTICULATE MATERIAL
Abstract not available for EP0740581 Abstract of corresponding document: WO9519841 A particulate material which comprises hollow or cup-shaped ceramic microspheres having a diameter in the range...
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6747180 |
Metal catalysts
Metal catalysts comprising hollow forms or spheres are made of metal alloy and optionally activated. The metal catalysts can be used for the hydrogenation, dehydrogenation, isomerization reductive...
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6573213 |
Metal catalysts
Metal catalysts comprising hollow forms or spheres are made of metal alloy and optionally activated. The metal catalysts can be used for the hydrogenation, dehydrogenation, isomerization reductive...
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6548883 |
Reduced RC between adjacent substrate wiring lines
A void is defined between adjacent wiring lines to minimize RC coupling. The void has a low dielectric value approaching 1.0. For one approach, hollow silicon spheres define the void. The spheres...
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6537518 |
Particulate material
A particulate material comprises hollow or cup-shaped ceramic microspheres having a diameter in the range of from 5 to 200 microns, the microspheres being formed from a base material comprising...
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6528446 |
Process for making clay spheroids
A process of making ceramic spheroids by firing clay spheroids comprising by weight percent: FeO (3.22-5.21), Fe 3 O 4 (3.40-5.11), SiO 2 (52.49-59.42), CaO (1.99-7.96), MgO (2.81-4.69), Al 2 O 3...
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6396119 |
Reduced RC delay between adjacent substrate wiring lines
A void is defined between adjacent wiring lines to minimize RC coupling. The void has a low dielectric value approaching 1.0. For one approach, hollow silicon spheres define the void. The spheres...
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6371171 |
Agglomeration of finely divided powders
A method of treating a finely divided powder is provided including a) forcing the powder through the apertures of a sieve to form agglomerates; and b) spheronizing the agglomerates. The method...
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6258338 |
Hollow or cup-shaped microparticles and methods of use
A particulate material which comprises hollow or cup-shaped ceramic microspheres having a diameter in the range of from 5 to 200 microns. The material may comprise a beta- or gamma-emitting...
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EP0694365B2 |
Improved oscillating hand tool
Abstract of EP0694365 A dual function powered oscillating hand tool comprises (i) a drive unit (5) having an electric motor and a drive shaft (7); (ii) a bearing (15) mounted on the drive shaft...
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EP0708901B1 |
CERAMIC COMBUSTION SUPPORT ELEMENT FOR SURFACE RADIANT BURNERS
Abstract not available for EP0708901 Abstract of corresponding document: US5749721 PCT No. PCT/EP94/02419 Sec. 371 Date May 29, 1996 Sec. 102(e) Date May 29, 1996 PCT Filed Jul. 22, 1994 PCT Pub....
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5885547 |
Particulate material
A particulate material which comprises hollow or cup-shaped ceramic microspheres having a diameter in the range of from 5 to 200 microns. The material may comprise a beta- or gamma-emitting...
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5835987 |
Reduced RC delay between adjacent substrate wiring lines
A void is defined between adjacent wiring lines to minimize RC coupling. The void has a low dielectric value approaching 1.0. For one approach, hollow silicon spheres define the void. The spheres...
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5749721 |
Ceramic combustion support element for surface burners and process for producing the same
Combustion support element (E), in particular for quasi-flameless surface burners, consisting of a ceramic material having a plurality of throughflow openings, the ceramic material is a porous,...
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5496644 |
Plasma sprayed mullite coatings on silicon-base ceramics
A silicon-base ceramic substrate is provided with a mullite chemical barrier/thermal barrier coating uniformly bonded to a surface. The coating is substantially free of amorphous mullite.
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EP0694365A1 |
Improved oscillating hand tool
A dual function powered oscillating hand tool comprises (i) a drive unit (5) having an electric motor and a drive shaft (7); (ii) a bearing (15) mounted on the drive shaft (7) and located...
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5391404 |
Plasma sprayed mullite coatings on silicon-base ceramics
A silicon-base ceramic substrate is provided with a mullite coating by flame-spraying heated crystalline mullite powders onto a substrate that is preheated to a temperature in excess of 800° C....
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5077241 |
Sol gel-derived ceramic bubbles
Discrete, free-flowing, ceramic microbubbles consist essentially of at least one of a non-oxide component and an oxide component having diameters in the range of 1 to 300 micrometers and each...
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5024289 |
Insulated double-walled exhaust pipe
A double-walled cylinder in the form of an exhaust pipe, muffler, or catalytic converter is provided less heat or sound conductive in its radial direction by filling the annular gap between the...
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4973566 |
Cordierite material useful in a heat source retainer and process for making the same
A porous cordierite ceramic and a process for making the same are provided by the present invention. Preferably, the ceramic material includes at least about 95 percent cordierite in the crystal...
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4769189 |
Process for making hollow, ceramic spheroids
Process for making hollow, ceramic macrospheres by making a paste of a continuous phase material (e.g., sodium silicate or potassium silicate) and an insolubilizing agent (e.g., kaolin clay)....
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4701436 |
Catalytic, hollow, refractory spheres
Improved, heterogeneous, refractory catalysts are in the form of gas-impervious, hollow, thin-walled spheres (10) suitable formed of a shell (12) of refractory such as alumina having a cavity (14)...
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4677095 |
Stabilized alumina catalyst support coatings
A method for stabilizing alumina supports for metal catalysts by impregnating the support with an aqueous dispersion of a high molecular weight, water dispersible polyorganosiloxane and calcining.
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4663024 |
Process for catalytic conversion of hydrocarbon feedstock
Process for refining hydrocarbon feedstocks comprising contacting a hydrocarbon feedstock with zeolite-containing particles that are free-flowing, discrete, rounded, rigid, frangible, hollow, and...
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4657810 |
Fired hollow ceramic spheroids
A hollow, ceramic macrosphere or spheroid comprising a relatively smooth outer skin and cellular shell is produced in the 2-20 mm diameter range with specific gravities in the 0.2-1.2 range. The...
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4637990 |
Hollow porous microspheres as substrates and containers for catalysts and method of making same
Hollow porous microspheres are used as substrates and containers for catalyst to make microsphere catalysts. The hollow porous microspheres are made from dispersed particle compositions. The...
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4628042 |
Porous mullite
Clay convertible by thermal treatment into crystalline mullite and silica is formed into green coherent bodies of desired size and shape such as, for example, microspheres, pellets or honeycombs....
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4608357 |
Catalytic cracking with mullite composition promoted combustion of carbon monoxide
The present invention provides novel catalyst products for promoting the combustion of carbon monoxide, particularly in catalytic cracking units, especially FCC units. The improved products of the...
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4576926 |
Catalytic hollow spheres
The improved, heterogeneous catalysts are in the form of gas-impervious, hollow, thin-walled spheres (10) suitably formed of a shell (12) of metal such as aluminum having a cavity (14) containing a...
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4546090 |
Hollow zeolite-containing particles useful as refining catalysts
Novel zeolite-containing particles. The particles are free-flowing, discrete, rounded, rigid, frangible, hollow, and opaque. The shell or wall of each particle is porous to gases and fluids. The...
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EP0154751A2 |
Process for preparation of composite materials comprising porous, hollow particles.
Abstract not available for EP0154751 Abstract of corresponding document: US4670303 The present invention relates to materials and more particularly to composite materials in which a selected...
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EP0089425A1 |
Method for the preparation of integral shaped replications of shaped, porous and dissolvable materials for use as adsorbents in fixed bed adsorption processes.
Integral shaped replications which may be used as supports for catalysts or as adsorbents comprise a carbonaceous pyropolymer structure which has been prepared by treating a substrate material with...
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4325846 |
Adsorbent materials for oils and fats
A porous adsorbent material for oils and fats consisting essentially of a sintered product of a basic composition consisting of a mixture of silica and clay having an infinite number of continuous,...
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4292348 |
Low density ceramic insulating
An insulating system and the method for the preparation thereof, for preparing a catalyst substrate or catalyst to provide a final product wherein a packing and catalyst are insulated from each...
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4260524 |
Hollow catalyst carrier and hollow catalyst made of transition-alumina and process for production thereof
A hollow catalyst carrier and hollow catalyst made of a transition-alumina (e.g. γ-alumina) which comprises a calcined product having a pipe-like or multi-cell structure and having a very large...
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