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7323429 |
Clay composition
A method for pacifying the spent bed material resulting from the synthesis of organohalosilanes and halosilanes by mixing clay with spent bed material. Clay compositions containing at least 10...
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7101821 |
Silicon composition
This invention provides a silicon composition comprising at least 15 wt % of hydrolysed silicon compounds and at least 3 wt % of a binder material. The silicon composition is used in the...
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6905996 |
Method of making a ceramic article
This invention provides methods for making ceramic articles with improved density, compression strength and efflorescence properties, in which a pre-ceramic article containing direct process...
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6828370 |
Intercalates and exfoliates thereof having an improved level of extractable material
The invetion is directed to a polymer-clay nanocomposite material comprising a melt-processible matrix oplymer and a layered clay material having decreased levels of extractable material, such as...
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6811602 |
Process for preparing silicate porous product
A process for preparing a silicate porous product, which comprises a step of forming a clay mineral into a dispersion by means of a dispersant, a step of removing gases dissolved in the dispersion,...
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6787592 |
Organoclay compositions prepared from ester quats and composites based on the compositions
Organoclays based on specific types of ester quats are found to be remarkably effective for use in preparing nanocomposites. These organoclays comprise the reaction product of a smectite clay and a...
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6696377 |
Clay slurry
A process for preparing a ball clay slurry with a casting rate of at least about 50, a modulus of rupture of at least 500 pounds per square inch, and from about 0.1 to about 1.0 weight percent of...
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6552113 |
Polymer-clay nanocomposite comprising an amorphous oligomer
This invention is directed to a polymer-clay nanocomposite, products produced from the nanocomposite, and a process for preparing a polymer-clay nanocomposite. The polymer-clay nanocomposite...
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6548438 |
Method for processing clay ceramic materials
A method of forming bricks, tiles, and the like by treating clay, shale or other clay ceramic raw materials containing pyrite is disclosed. Such clay, ceramic raw materials may be ground, and then...
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6537676 |
Waterproofing material and method of fabrication therefor
A waterproofing material free of loose particulate material comprising a waterproofing sheet formed by extrusion under vacuum from a substantially homogeneous, deformable mass consisting of a...
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6462096 |
Organophilic clay additives and oil well drilling fluids with less temperature dependent rheological properties containing said additives
Conventional organophilic clays, when used as rheological additives in oil based invert muds, display marked viscosity loses in the mud when these muds are heated much above 350° F., whereas muds...
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6399690 |
LAYERED COMPOSITIONS WITH MULTI-CHARGED ONIUM IONS AS EXCHANGE CATIONS, AND THEIR APPLICATION TO PREPARE MONOMER, OLIGOMER, AND POLYMER INTERCALATES AND NANOCOMPOSITES PREPARED WITH THE LAYERED COMPOSITIONS OF THE INTERCALATES
Intercalated layered materials prepared by co-intercalation of a multi-charged onium ion spacing/coupling agent and a matrix polymer between the planar layers of a swellable layered material, such...
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6346145 |
Paints containing low sheen opacifying pigments obtained by flux calcination of kaolin clay
Flux calcined kaolin clay especially useful as a pigment for low sheen paints is obtained by mixing hydrous kaolin with an aqueous solution of alkaline flux, spray drying, pulverizing, calcining...
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6156284 |
Processing procedure for transforming previously unusable clays and kaolin clays to low viscosity pigment
An improved process for transforming clays that cannot be utilized in commercial pigment production to low-viscosity pigment for commercial application is described whereby a treated clay is...
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6136086 |
Low sheen opacifying pigments and manufacture thereof by calcination of kaolin clay
Flux calcined kaolin clay especially useful as a pigment for low sheen paints is obtained by mixing hydrous kaolin with an aqueous solution of alkaline flux, spray drying, pulverizing, calcining...
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6136740 |
Porous inorganic particulate material
A method of producing a porous inorganic particulate material which comprises treating a particulate aluminosilicate material with a leaching agent which chemically reacts with or solubilizes...
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6093669 |
Method for selecting raw material for bleaching clay
A process for making a bleaching clay composition useful for purification of oil is disclosed. The process involves controlled acidification of a palygorskite and smectite clay mineral with...
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6074473 |
Low viscosity, high solids content slurry
The present invention provides a high solids slurry and a method for producing the same. Specifically, the present invention provides a talc slurry having a solids content of at least about 58% and...
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6068769 |
Aqueous dispersion slurry of inorganic particles and production methods thereof
The present invention provides aqueous dispersion slurry of inorganic particles which is so stable as not to increase in viscosity, gel or sediment even if stored for a long time and therefore can...
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6045657 |
Clay compositions and their use in paper making
Paper making processes, including microparticulate processes, which utilise bentonite are provided with bentonite in the form of a concentrate, or a dilute dispersion made by diluting the...
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6024790 |
Activation of swelling clays
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6006920 |
Brightness, reduced impurity clays and methods of making same
Provided is a method of making improved brightness kaolin clay from an aqueous kaolin clay slurry in which the primary active dispersant is a weak dispersant, at least including the steps of adding...
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5938833 |
Chemical process for fractionating mineral particles based on particle size
This invention pertains to the use of a combination of polyvalent cations, clay dispersant and high molecular weight anionic polymer to preferentially remove colloidal fines (slimes) from a kaolin...
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5908500 |
Activated clay composition and method
High performance acid activated clays suitable for bleaching oil are produced by contacting an intercalating clay mineral with a strong acid in a polar organic liquid.
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5891236 |
Process for improving the color and brightness of discolored goethite-containing materials
Materials, such as kaolin clays, which are discolored by the presence of goethite mineral impurities are first heated to convert the goethite to hematite and then treated to remove the hematite,...
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5843861 |
Process for the synthesis of kaolin clays having varying morphological properties
Substantially crystalline kaolin clays having varying morphological properties are produced by the hydrothermal treatment, in an acidic environment, of substantially amorphous calcined kaolin clay.
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5830818 |
Process for the microwave beneficiation of discolored kaolin clay materials
Kaolin clay materials containing discoloring impurities can be beneficiated by microwave irradiation in the presence of water and a polyprotic acid component to produce a beneficiated kaolin clay...
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5827362 |
Modified organoclays
The invention provides a range of modified organoclays comprising intercalated moieties to provide an effective mechanism for attracting organic compounds into the interlamellar spaces in close...
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5783511 |
Process for selecting raw material and making a bleaching clay
A process for making a bleaching clay composition useful for purification of oil is disclosed. The process of involves controlled acidification of a palygorskite--smectite clay mineral with...
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5779785 |
Stabilized, high solids, low viscosity smectite slurries, and method of preparation
An aqueous slurry of smectite clay of elevated solids content, comprising an aqueous solution or emulsion of at least 0.2% by weight of said slurry of a salt of a low molecular weight amine salt,...
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5780376 |
Organoclay compositions
Organoclay compositions which comprise the reaction product of a smectite-type clay having an ion exchange capacity of at least 50 meq. wt. per 100 g. clay (active basis), and mixture of a...
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5749955 |
Clay activation with metal salts
High performance activated clays suitable for bleaching oil are produced by mixing a clay mineral with a metal salt that is a Lewis acid. Mixtures of such metal salts can be used as well.
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5743952 |
Aqueous suspensions of inorganic materials
A process for improving the rheological properties of an aqueous suspension of a particulate inorganic material which comprises the steps of: (a) forming an aqueous suspension of the particulate...
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5731034 |
Method of coating paper
A method of coating paper with a paper coating composition having a solids concentration of at least 45% by weight, consisting essentially of an aqueous cationic dispersion of a particulate calcium...
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5707912 |
Process for the treatment of clay materials to provide slurries having improved rheological properties
Clay materials, such as kaolin, containing expandable layer-silicates are chemically treated with a source of magnesium cations, followed by a pH adjustment, to provide a slurry product having...
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5663111 |
Organoclay compositions
Organoclay compositions which comprise the reaction product of a smectite-type clay having an ion exchange capacity of at least 50 meq. wt. per 100 g. clay (active basis), and an alkoxylated...
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5584925 |
Chemically aggregated kaolin clay pigment and process for making the same by phosphate bonding
An opacifying kaolin pigment with improved porosity, light scattering ability (opacity), gloss, and ink receptivity over that of the starting pigment is manufactured by a process which comprises...
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5573583 |
Method of activation of clay and activated clay
A method for activating smectite clays to give swelling power and/or dispersibility in an aqueous electrolyte solution and resulting activated smectite clays are disclosed, the method comprising...
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5545599 |
Process for whitening kaolin
The present invention provides a process for whitening kaolin contaminated with chlorite/biotite micas. The process comprises the steps of contacting the kaolin contaminated with chlorite/biotite...
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5543372 |
Stable high solids slurries of structured clay materials and process for the manufacture thereof
A stable high solids structured clay slurry is manufactured by a process which comprises the sequential steps of forming a high solids slurry by mixing a structured clay material with water in a...
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5532196 |
Inorganic resins, process for their preparation and materials for heat protection
The invention relates to new curable inorganic resins based on alkali metal boroaluminosilicates, which, before curing, include inorganic elements in the reactive state, in the following...
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5458680 |
Method of producing aggregated composite pigments using organic silicon compounds
An improved process for producing a aggregated composite pigment having desired physical and optical characteristics when used as a coating, filler or pigment in paper. The aggregated pigment is...
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5454865 |
Method for preparing refined kaolin in clay products
A method which enables economical and highly effective preparation of refined kaolin clay products having preselected particle size distributions and brightnesses, by means of separate, efficient...
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5429999 |
Organoclay compositions containing two or more cations and one or more organic anions, their preparation and use in non-aqueous systems
A novel organophilic clay gellant comprising the reaction product of: (a) a smectite clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of natural clay without...
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5423911 |
Coating pigment for cellulose - based printing media
A coating pigment for coating printing media, especially paper and cardboard, is made with at least one swellable layer silicate which can be fixed on the printing medium essentially without...
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5424259 |
High solids slurries of structured kaolin clay materials having improved high shear rheology and process for the manufacture thereof
A high solids structured kaolin clay slurry having improved high shear rheology is manufactured by a process which comprises the sequential steps of forming an aqueous composition by mixing water...
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5411587 |
Paper coating kaolin pigments their preparation and use
Paper coating pigments comprising mechanically delaminated kaolin particles. The pigments possess the opacification, smoothness and printability advantages of conventional delaminated kaolin...
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5397754 |
Method of brightening kaolin clay by thermal oxidative decarboxylation of organic contaminants
A method for brightening kaolin contaminated with organic matter by decarboxylation treatment of an aqueous kaolin slurry. The decarboxylation is carried out by contacting the clay slurry with...
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5391228 |
Method for preparing high solids bentonite slurries
A method for preparing a time-stable, low viscosity, pumpable high solids aqueous bentonite slurry which has good application properties upon dilution and use. An aqueous solution of at least first...
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5391526 |
Situ method for producing hydrosulfite bleach and use thereof
A process for reacting metallic iron with sulfur dioxide (SO 2 ) gas in the presence of water and bleachable matter, especially iron-contaminated kaolin clay, whereby the kaolin or the like is...
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