Assignee: American Colloid Company

Location: Skokie, IL
No. of patents: 37

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Number	Title	Issue Date
4668724	Uninhibited bentonite composition The present invention relates to a non-hydrated bentonite intimately contacted with a polypropene, polybutene, or mixtures thereof to provide a formable and shapable non-aqueous bentonite composition particularly useful as a water barrier. The bentonite c...	05/26/1987
4656062	Self-healing bentonite sheet material composite article The present invention relates to a layered water sealing article of manufacture including a layer of a flexible sheet material adhered to a layer of a composition comprising a non-hydrated water-swellable clay intimately contacted with a polypropene, poly...	04/07/1987
4654393	Process for preparing dry solid polyacrylate water absorbing resin A process is disclosed for preparing a solid, water absorbing, cross-linked polyacrylate resin including combining potassium acrylate and a polyvinyl monomer, such as N,N-methylene bisacrylamide, with water in an amount of 55 to 80 combined weight percent...	03/31/1987
4634538	Water swellable clay composition and method to maintain stability in salt contaminated water Disclosed is a composition including a water swellable clay, and particularly a montmorillonite clay, such as bentonite; xanthan gum; and one or more additional water-soluble gums, for example, guar dextran, acacia or locust bean. The xanthan gum together...	01/06/1987
4624982	Method of temporarily inhibiting the swellability of water swellable clays and compositions A method of temporarily inhibiting the swelling capacity of a water-swellable clay composition in contact with water includes mixing with a water-swellable clay a water soluble anionic polymer having a weight average molecular weight of about 2,000 to abo...	11/25/1986
4618631	Production process for highly water absorbable polymer Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutarlized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a m...	10/21/1986
4613542	Method of impregnating a water-penetrable article with a swell-inhibited water swellable clay slurry A method of impregnating a water-penetrable article with a clay slurry includes temporarily inhibiting the swellability of the clay to unexpectedly increase the clay content and decrease the viscosity of the slurry to achieve a higher clay content in a cl...	09/23/1986
4612250	Production process for highly water absorbable polymer Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a m...	09/16/1986
4552938	Process for preparing dry solid water absorbing polyacrylate resin A process is disclosed for preparing a solid, water absorbing, cross-linked polyacrylate resin including combining potassium acrylate and a polyvinyl monomer, such as N,N-methylene bisacrylamide, with water in an amount of 55 to 80 combined weight percent...	11/12/1985
4534926	Uninhibited bentonite composition The present invention relates to a nonhydrated bentonite intimately contacted with a polypropene, polybutene, or mixtures thereof to provide a formable and shapable non-aqueous bentonite composition particularly useful as a water barrier. The bentonite co...	08/13/1985
4534925	Uninhibited bentonite composition The present invention relates to a non-hydrated bentonite intimately contacted with a polypropene, polybutene, or mixtures thereof to provide a formable and shapable non-aqueous bentonite composition particularly useful as a water barrier. The bentonite c...	08/13/1985
4525527	Production process for highly water absorbable polymer Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a m...	06/25/1985
4514510	Hydrogen enriched water swellable clay having reduced acid demand and stable at low pH A water swellable clay i.e. bentonite, hectorite, saponite or mixtures thereof, is slurried in water and contacted with a hydrogen ion exchange resin to replace a portion of the exchangeable sodium and other exchangeable cations with hydrogen, resulting i...	04/30/1985
4462470	Extrusion of bentonite clay for fluid loss reduction in drilling fluids The fluid loss and viscosity loss characteristics of a water expandable bentonite clay are substantially improved by extruding the clay through die openings while, at the same time, passing a wiper or scraping blade across the entrance of the die openings...	07/31/1984
4439062	Sealing system and method for sealing earthen containers A sealing system for an earthen container such as a pit, lagoon, land fill or the like for storing waste materials includes an outer seal layer formed by mixing a water expandable colloidal clay, such as bentonite with the soil of the pit. A middle or int...	03/27/1984
4430027	Method of forming a foundation with liquid tight joints A method of constructing an in-ground liquid barrier in separate sections with liquid tight joints between the sections. A barrier area is excavated and the sections formed therein, preferrably by initially filling the excavation with a liquid sealing slu...	02/07/1984
4378299	Cable lubricating composition and method A water soluble cable lubricating composition and method involves a lubricant in liquid or gel form that possesses the ability to adhere to the surface to be lubricated. The composition includes an aqueous solution of from about 1 to 4% of a water soluble...	03/29/1983
4377416	Masonry cement composition, masonry construction and method A masonry cement is prepared by dry mixing portland cement, diatomaceous earth and a water-swellable colloidal clay, such as bentonite. Accordingly, the crushed limestone and other ingredients previously included in masonry cements for admixture with port...	03/22/1983
4367057	Method of forming a foundation with liquid tight joints A method of constructing an in-ground liquid barrier in separate sections with liquid tight joints between the sections. A barrier area is excavated and the sections formed therein, preferrably by initially filling the excavation with a liquid sealing slu...	01/04/1983
4332693	Agent for the purification of waste waters and process for its production A chemical agent for treating oily emulsions and the like in industrial waste water includes a homogenous mixture of talc; adipic acid; aluminum sulfate; TIXOTON, a registered trademark; a flocculating agent; lime and bentonite. The process for producing ...	06/01/1982
4279547	Bentonite-gelled oil waterproofing composition A bentonite composition useful for preventing a flow of water through a structure is disclosed. The composition has substantially all of the bentonite in non-hydrated form by dispersing the bentonite throughout a non-aqueous gel formed from a non-aqueous ...	07/21/1981
4209568	Bentonite-gelled oil waterproofing composition A bentonite composition useful for preventing a flow of water through a structure is disclosed. The composition has substantially all of the bentonite in non-hydrated form by dispersing the bentonite throughout a non-aqueous gel formed from a non-aqueous ...	06/24/1980
4194970	Method for screening particulate materials A method and apparatus for use in separating oversize from on size particles in a mass of particulate materials passed rapidly through a screening device includes a sloping screen mesh having sizing openings dimensioned to be larger than the desired maxim...	03/25/1980
4167398	Carbonaceous briquette and method for making same A combustible carbonaceous briquette, having a high bond strength and good burning characteristics is formed by adding to the carbonaceous material a composition containing from about 80% to 99.9%, by weight, of sodium bentonite, from about 0.1% to 5%, by...	09/11/1979
4159683	Method for reducing the formation of slag and soot formed from the combustion of carbonaceous waste material The amount of soot and slag formed during the combustion of carbonaceous waste material is appreciably reduced by combusting said waste material in the presence of at least 0.0001%, by weight, of sodium bentonite, based on the weight of carbonaceous mater...	07/03/1979
4148662	Brick composition and method therefor This invention relates to a method for making brick from shale or a mixture of clay and shale by adding to the shale or shale mixture an additive containing sodium bentonite, a water soluble anionic polyelectrolyte polymer, and, preferably, a water solubl...	04/10/1979
4139588	Method of making a water barrier panel A panel is provided forming a water barrier and comprising two opposing spaced sheets having between said spaced sheets a sealant composition comprising bentonite; a water soluble dispersing agent selected from the group consisting of a water-soluble salt...	02/13/1979
4126543	Method and apparatus for screening particulate materials A method and apparatus for use in separating oversize from on size particles in a mass of particulate materials passed rapidly through a screening device includes a sloping screen mesh having sizing openings dimensioned to be larger than the desired maxim...	11/21/1978
4103499	Method of forming a water barrier around foundations A panel is provided forming a water barrier and comprising two opposing spaced sheets having between said spaced sheets a sealant composition comprising bentonite; a water soluble dispersing agent selected from the group consisting of a water-soluble salt...	08/01/1978
4087365	Super-yield bentonite base drilling fluid A super-yield bentonite base drilling fluid composition is provided having a yield of more than 500 barrels per ton of bentonite, comprising water, bentonite clay, and a partial calcium salt of polyacrylic acid in an amount greater than about 7% by weight...	05/02/1978
4084382	Method and composition for preventing water contaminated with industrial waste seeping through soil containing said water There is disclosed a method for containing water having a high concentration of water-soluble industrial waste which, when in contact with bentonite, disintegrates the bentonite thereby allowing seepage of water through soil containing said water which co...	04/18/1978
4070839	Moisture impervious panel A moisture impervious panel includes a pair of spaced facing sheets interconnected by a central rigid support sheet, such as corrugated fiberglass, to form a plurality of pockets between the support sheet and the facing sheets. The pockets are filled with...	01/31/1978
4048373	Water barrier panel A panel is provided forming a water barrier and comprising two opposing spaced sheets having between said spaced sheets a sealant composition comprising bentonite; a water soluble dispersing agent selected from the group consisting of a water-soluble salt...	09/13/1977
4032701	Continuous method for producing a dry, solid polyacrylamide A process for producing polyacrylamide in a dry and solid form which includes the steps of mixing from 20 to 40% by weight of water and from 60 to 80% by weight of acrylamide to form an aqueous mixture thereof; heating said aqueous mixture to a temperatur...	06/28/1977
4021402	Method and composition for preventing water contaminated with industrial waste seeping through soil containing said water There is disclosed a method for containing water having a high concentration of water-soluble industrial waste which, when in contact with bentonite, disintegrates the bentonite thereby allowing seepage of water through soil containing said water which co...	05/03/1977
3986365	Soil sealing method There is disclosed a composition which is useful, when added to soil, in containing water, said composition containing bentonite and a particular type of water-soluble polymer, the purpose of the water-soluble polymer being to decrease the amount of bento...	10/19/1976
3949560	Method and composition for preventing water contaminated with industrial waste from seeping through soil containing said water There is disclosed a method for containing water having a high concentration of water-soluble industrial waste which, when in contact with bentonite, disintegrates the bentonite thereby allowing seepage of water through soil containing said water which co...	04/13/1976

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Assignee: American Colloid Company