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7618608 |
Aerogel and method of manufacturing same
An ambient pressure, low cycle time method for the synthesis and manufacture of a low cost, highly insulting, highly translucent, and low density transition metal-based hydrophilic and hydrophobic...
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7595036 |
Synthesis of tetragonal phase stabilized nano and submicron sized nanoparticles
Novel, monodispersed, spherical ZrO 2 particles in the size range of approximately 10 to approximately 600 nm exhibiting metastable tetragonal crystal structure at room temperature and novel...
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7559981 |
Air filtration media comprising oxidizing agent-treated metal-doped silicon-based gel and zeolite materials
An environmental control for use in air handling systems that are required to provide highly effective filtration of noxious gases is provided. In one embodiment, a filtration system utilizes a...
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7553416 |
Caustic silica gel manufacturing method and gels made thereby
New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for...
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7537746 |
Process and apparatus for producing inorganic spheres
A process for producing inorganic spheres, which comprises injecting an aqueous liquid containing an inorganic compound into a laminar flow of an organic liquid which runs at a flow rate of from...
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7524478 |
Low water uptake silicas
The invention concerns a method for preparing low water uptake precipitated silicas, comprising successive steps which consist in: (a) producing an initial starter including a silicate, the...
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7504084 |
High velocity, low pressure process for making silica gels and microgels
This invention relates to a process for converting silica to polysilicate gels or hydrogels by combining an aqueous silica source with a CO 2 feed stream as the gel initiator, whereby the reaction...
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7479264 |
Synthetic platy magadiite and octasilicate
A method for producing synthetic magadiite, including the step of: heating a liquid aqueous colloidal silica suspension, the liquid aqueous colloidal silica suspension having a mole ratio of sodium...
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7470725 |
Organically modified aerogels, processes for their preparation by surface modification of the aqueous gel, without prior solvent exchange, and subsequent drying, and their use
The present invention relates to novel, organically modified aerogels, uses thereof, and a process for producing them in which a) a hydrogel is introduced as an initial charge, b) the hydrogel...
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7442357 |
Manufacture of silica aerogel via vapor phase reaction
A kinetically controlled vapor reaction process for synthesizing silica areogel in a reaction container by injection of a precursor reagent vapor, a catalyst reagent vapor, super saturated steam as...
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7442356 |
Process for producing inorganic spheres
To provide a process for producing inorganic spheres having a substantially uniform particle size with high productivity. In a process for producing inorganic spheres, which comprises a step of...
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7427387 |
High-purity quartz powder, process for producing the same, and glass molding
Subjects for the invention are to obtain a quartz powder having a high purity and high quality and a process for producing the same and to obtain a glass molding formed by melting and molding the...
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7402293 |
Surface-modified, aerogel-type structured silica
A surface-modified, aerogel-type, structured silica is produced by spraying an aerogel-type, structured silica with a silanizing agent, post-mixing and conditioning. It can be used as a flatting...
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7377965 |
Air filtration media comprising metal-doped silicon-based gel materials
The present invention relates generally to an environmental control unit for use in air handling systems that provides highly effective filtration of noxious gases (such as ammonia). Such a...
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7338982 |
Functionalized mesoporous silicate structures, and related processes
A mesoporous material is described. It includes a network of interconnected pores within an L3 phase structure. The pores include pore walls of a silicate material functionalized with at least one...
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RE40140 |
Polymerization catalyst used for producing polyolefins that have excellent combined properties
The invention relates to a process for preparing a catalyst for the polymerization of olefins, which comprises:
a) preparation of a finely divided silica xerogel, b) loading of the xerogel...
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7306788 |
High-cleaning/moderate abrasive silica materials and dentifrice containing such materials
Unique abrasive and/or thickening materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial...
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7303742 |
Viscosity-modifying silica materials that exhibit low cleaning and abrasive levels and dentifrices thereof
Unique abrasive and/or thickening materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial...
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7297718 |
Method of producing substantially spherical lyogels in water insoluble silylating agents
A method of producing substantially spherical lyogels in water insoluble silylating agents is provided. The present invention refers to a method of producing substantially spherical lyogels in...
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7265158 |
Non-metal aerogel materials and detectors, liquid and gas absorbing objects, and optical devices comprising same
New aerogels are disclosed which comprise silica and at least one organic polymer having polar functional groups. Also disclosed are methods for making such aerogels and for making them as...
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7220449 |
High-whiteness hydrophobic precipitated silica with ultralow moisture absorption
The invention relates to hydrophobicized precipitated silicas that possess an extremely high whiteness and extremely low moisture absorption. The hydrophobic precipitated silicas are prepared,...
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7192461 |
High concentration silica slurry
A high concentration silica slurry can be used for polishing of substrates, such as semiconductor materials. The slurry contains a silica powder dispersed in an solvent. The silica slurry has a...
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7172747 |
Metal oxide nanotube and process for production thereof
Spiral shaped fibers were utilized to prepare completely novel metal oxide nanotubes comprising solely metal oxides. The metal oxide nanotubes comprise solely a hollow cylinder shaped metal oxide...
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7125912 |
Doped sol-gel materials and method of manufacture utilizing reduced mixing temperatures
A method of preparing a solution for forming a doped gel monolith includes providing a first substance including a metal alkoxide. The method further includes providing a second substance including...
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7125432 |
Method for making precipitated silica or silicate compositions and products thereof
New methods of producing narrower particle size distribution precipitated silica and/or silicate materials are provided. Such a method permits a significant reduction in manufacturing costs through...
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7101523 |
Silica
Silica with a large pore volume, a large specific surface area, a narrow pore distribution, low contents of unwanted metal impurities, and excellent physical properties such as high heat-resistance...
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7074457 |
Process for preparing high-whiteness hydrophobic precipitated silica with ultralow moisture absorption
A hydrophobic precipitated silica is prepared by a process comprising:
a) preparing a mixture of an organopolysiloxane derivative and a precipitated silica; b) conditioning the mixture...
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7074376 |
Silica gel
A method of producing a silica gel by hydrolyzing a silicon alkoxide and subjecting the resulting hydrogel to a hydrothermal treatment substantially without aging it is described. Also described in...
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7070748 |
Non-porous spherical silica and method for production thereof
Non-porous spherical silica having a mean particle diameter of 0.1–20 μm and satisfying the following conditions:
(a) a maximum particle diameter is 4 times the mean particle diameter or less;...
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7060240 |
Sol-gel process for the manufacture of nanocomposite photoluminescent materials and materials thus produced
It is described a process based on sol-gel chemistry suitable to the production of nanocomposite materials being photoluminescent at ambient temperature, comprising silicon grains of dimension of...
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7049347 |
Method for making fine and ultrafine spherical particles of zirconium titanate and other mixed metal oxide systems
Disclosed is a method for making amorphous spherical particles of zirconium titanate and crystalline spherical particles of zirconium titanate comprising the steps of mixing an aqueous solution of...
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7045106 |
Method for producing inorganic porous material
A process for producing an inorganic porous material, comprising the steps of preparing an aqueous medium solution containing water-glass as a silica source, a water-soluble polymer and an acid,...
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7026362 |
Sol-gel process utilizing reduced mixing temperatures
A method of forming a gel monolith includes preparing a first solution comprising metal alkoxide and preparing a second solution comprising a catalyst. A third solution is prepared by mixing the...
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7018596 |
Mesoporous silica, process for the preparation of the same, and use thereof
Accordingly, the invention provides: (1) mesoporous silica characterized by having an average pore diameter in the mesopore region of from 1.5 to 10 nm, a nitrogen adsorption specific surface area...
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6998102 |
Rapid process for producing transparent, monolithic porous glass
A process for making transparent porous glass monoliths from gels. The glass is produced much faster and in much larger sizes than present technology for making porous glass. The process reduces...
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6946010 |
Method for making abrasive compositions and products thereof
Method of making abrasive compositions comprised of water-insoluble abrasive polishing agents suspended in an aqueous medium in combination, which avoids the need and associated cost of dry milling...
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6911192 |
Method for preparing inorganic porous material
Disclosed is a method for producing an inorganic porous body having precisely controlled macropores concurrently with mesopores of a narrow pore size distribution. The method comprises dissolving...
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6899951 |
High-whiteness, non-heat-treated hydrophobic precipitated silica
The present invention provides a hydrophobic precipitated silica having the following properties:
carbon content 1.0-8.0% methanol wettability 20-55% reflectance >94% BET/CTAB ratio...
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6899857 |
Method for forming a region of low dielectric constant nanoporous material using a microemulsion technique
A method for forming a region of low dielectric constant nanoporous material is disclosed. In one embodiment, the present method includes the step of preparing a microemulsion. The method of the...
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6896876 |
High cleaning silica gel dental abrasive, dentifrices prepared therefrom, and a method for preparing the dental abrasive
A silica gel abrasive having good cleaning and low abrasion is prepared by combining at least two silica gels before adjusting the pH of the abrasive to a pH in the range of 3-6. One of the gels is...
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6890873 |
Glass prepared from pyrogenically prepared silicon dioxide
Pyrogenically prepared silicon dioxide with the following physicochemical properties:
1. Average particle size (D 50 value) D 50 ≧150 nm (dynamic light scattering, 30 wt %) 2. Viscosity...
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6852300 |
Process for preparing silica or silica-based thick vitreous films according to the sol-gel technique and thick films thereby obtained
A sol-gel process allowing preparation, on a substrate, of glassy films of silicon oxide or mixed oxides based on silicon oxide, of thickness above 1 micrometer, generally between 2 and 20...
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6849242 |
Porous silica granule, method for producing the same, and method for producing synthetic quartz glass powder using the porous silica granule
The granule consists of individual granules approximately spherical in shape, having a pore volume of 0.5 cm 3 , a mean diameter of pores of 50 nm or less, a specific surface area of 100 m 2 /g or...
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6838004 |
Nanopore reactive adsorbents for the high-efficiency removal of waste species
A nanoporous reactive adsorbent incorporates a relatively small number of relatively larger reactant, e.g., metal, enzyme, etc., particles ( 10 ) forming a discontinuous or continuous phase...
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6806295 |
Sol-gel processing with inorganic metal salt precursors
Methods for sol-gel processing that generally involve mixing together an inorganic metal salt, water, and a water miscible alcohol or other organic solvent, at room temperature with a...
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6802188 |
Method of making photosensitive monolithic glass apparatus
A partially modified photosensitive monolithic oxide glass apparatus formed through photolithographic imaging. The apparatus may be either a volume apparatus or a layer apparatus. Both types of...
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6800267 |
Doped precipitated silica
Aluminum-doped precipitated silicas having a BET surface area of more than 300 m 2 /g and aluminum distributed uniformly in the silica particles are prepared by sequentially heating a mixture of...
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6764667 |
Method for the formation of aerogel precursor using rapid gelation two-step catalysis
A rapid gelation, two-step method for the production of an aerogel precursor is disclosed. The method involves the addition of a small amount of catalyst during mixing of alcogel components in...
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6743936 |
Composites made using functionalized nanoparticles
There are disclosed amphoteric nano-sized metal oxide particles functionalized with silyl esters of a phosphonate and composites thereof with an acrylate-based monomer, including liquid crystal...
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6716408 |
Procedure for preparing silica from calcium silicate
This invention concerns a procedure for preparing amorphous silica from calcium silicate and CO 2 , with formation and separation of precipitate CaCO 3 .
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