Patents by Inventor William J. Benton
William J. Benton has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110017340Abstract: Syntactic foams and thermal insulation as described containing epoxy resin, hollow microspheres, and dried sol-gel or fumed metal oxide for forming a thermal insulating layer on a substrate such as a pipeline. Methods for forming such thermal insulating layers are also described, which can include formulating with blowing agents for forming closed cells in the finished insulating foam.Type: ApplicationFiled: December 18, 2008Publication date: January 27, 2011Applicant: CABOT CORPORATIONInventors: Thomas C. Mirossay, William J. Benton
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Patent number: 7407008Abstract: Loss circulation fluids contain aqueous based compositions having at least one alkali metal formate and at least one thermally activated self-crosslinkable gel forming material, wherein the composition is easily transported to a loss circulation zone and yet has ability to close off the loss circulation zone once thermally activated to reduce the loss of circulation fluids into flow passages of a subterranean formation. In addition, packer fluids contain aqueous based compositions which contain at least one alkali metal formate and at least one thermally activated self-crosslinkable gel forming material, wherein the packer fluid forms a thermal insulating fully hydrated gel once thermally activated.Type: GrantFiled: May 10, 2006Date of Patent: August 5, 2008Assignee: Cabot Specialty Fluids, Inc.Inventor: William J. Benton
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Patent number: 7273832Abstract: Fluids, such as completion fluids, containing at least one alkali metal tungstate and optionally at least one chelating agent are described. Methods of removing a filter cake from a well bore surface, which may include one or more alkaline earth metal sulfates, is also described, wherein the method includes contacting the filter cake with the completion fluid of the present invention. A drilling fluid or mud is also described wherein the drilling fluid contains at least one alkali metal tungstate. The drilling fluid preferably further contains at least one emulsifier or surfactant and at least one hydrocarbon-based fluid. The various fluids of the present invention can contain other conventional ingredients and optionally at least one alkali metal formate. The present invention permits the fluids to be essentially solids free due to the use of the alkali metal tungstate.Type: GrantFiled: August 9, 2002Date of Patent: September 25, 2007Assignee: Cabot CorporationInventors: William J. Benton, Neal F. Magri
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Patent number: 7211550Abstract: An aqueous-based composition containing cesium formate and at least one chelating agent is described. Methods of removing scaling deposits, which may include alkaline earth metal sulfates, present on surfaces, including porous media, such as alkaline earth metal sulfate buildup in a well bore, is also described, wherein the method includes contacting the alkaline earth metal sulfate with the compositions of the present invention to remove the scaling deposits. A completion fluid containing at least one alkali metal formate, at least one acid and/or at least one chelating agent, and optionally at least one surfactant or mutual solvent is also described. Methods of removing a filter cake from a well bore surface, which may include weighting agents such as calcium carbonate, is also described, wherein the method includes contacting the filter cake with the completion fluid of the present invention.Type: GrantFiled: July 6, 2001Date of Patent: May 1, 2007Assignee: Cabot CorporationInventors: William J. Benton, Neal F. Magri, James R. VonKrosigk, Michael T. Pelletier
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Patent number: 7056868Abstract: Water soluble associative polymers and compositions comprising them together with alkali metal salts of carboxylic acid are disclosed. Methods comprise introducing into a wellbore a fluid comprising such associative polymers and alkali metal salts of carboxylic acid, e.g., cesium formate. Disclosed water soluble associative polymers have functionality including at least sulfonate groups, carboxylate groups and hydrophobes associative with one another in a saturated aqueous solution of an alkali metal salt of a carboxylic acid.Type: GrantFiled: July 30, 2001Date of Patent: June 6, 2006Assignees: Cabot Corporation, Fritz Industries, Inc.Inventors: William J. Benton, Edward E. Miller, Neil Magri, John Toups
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Patent number: 6818595Abstract: A drilling fluid or mud is described wherein the drilling fluid contains at least one alkali metal formate or monovalent carboxylic acid salt. The drilling fluid preferably further contains at least one emulsifier or surfactant and at least one hydrocarbon-based fluid. The drilling fluids of the present invention can contain other conventional ingredients. The present invention permits drilling fluids to be essentially solids free due to the use of the alkali metal formate.Type: GrantFiled: February 14, 2002Date of Patent: November 16, 2004Assignee: Cabot Specialty Fluids, Inc.Inventors: William J. Benton, John A. Toups, U. Roger Weems
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Patent number: 6656989Abstract: Novel polymer compositions are disclosed, along with their use as well service fluids, for example as completion fluids, work-over fluids or drilling fluids, comprising water soluble copolymers having sulfonate groups and carboxylate groups, along with alkali metal salts of carboxylic acid. Exemplary copolymer has 5 to 95 wt. % structural units derived from 2-acrylamido-2-methylpropanesulfonic acid or salt thereof, and 5 to 95 wt. % structural units derived from acrylic acid or salt thereof. A salt of the polymer may be used, such as the sodium, potassium, ammonium and calcium salts. Exemplary alkali metal salts of the polymer composition include sodium, potassium and cesium salts of formic acid and/or acetic acid in amounts suitable to develop high temperature viscosity suitable for such well servicing fluids. The polymer composition is hydrateble/soluble in a brine of sodium and/or potassium and/or cesium salts of formic and/or acetic acid.Type: GrantFiled: May 19, 2000Date of Patent: December 2, 2003Assignees: Cabot Corporation, Fritz Industries, Inc.Inventors: William J. Benton, Edward E. Miller
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Publication number: 20030162669Abstract: A drilling fluid or mud is described wherein the drilling fluid contains at least one alkali metal formate or monovalent carboxylic acid salt. The drilling fluid preferably further contains at least one emulsifier or surfactant and at least one hydrocarbon-based fluid. The drilling fluids of the present invention can contain other conventional ingredients. The present invention permits drilling fluids to be essentially solids free due to the use of the alkali metal formate.Type: ApplicationFiled: February 14, 2002Publication date: August 28, 2003Inventors: William J. Benton, John A. Toups, U. Roger Weems
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Publication number: 20030162925Abstract: Novel polymer compositions are disclosed, along with their use as well service fluids, for example as completion fluids, work-over fluids or drilling fluids, comprising water soluable copolymers having sulfonate groups and carboxylate groups, along with alkali metal salts of carboxylic acid. Exemplary copolymer has 5 to 95 wt. % structural units derived from 2-acrylamido-2-methylpropanesulfonic acid or salt thereof, and 5 to 95 wt. % structural units derived from acrylic acid or salt thereof. A salt of the polymer may be used, such as the sodium, potassium, ammonium and calcium salts. Exemplary alkali metal salts of the polymer composition include sodium, potassium and cesium salts of formic acid and/or acetic acid in amounts suitable to develop high temperature viscosity suitable for such well servicing fluids. The polymer composition is hydrateble/soluable in a brine of sodium and/or potassium and/or cesium salts of formic and/or acetic acid.Type: ApplicationFiled: April 11, 2002Publication date: August 28, 2003Applicant: Cabot CorporationInventors: Edward Miller, William J. Benton
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Publication number: 20030114317Abstract: Water soluble associative polymers and compositions comprising them together with alkali metal salts of carboxylic acid are disclosed. Methods comprise introducing into a wellbore a fluid comprising such associative polymers and alkali metal salts of carboxylic acid, e.g., cesium formate. Disclosed water soluble associative polymers have functionality including at least sulfonate groups, carboxylate groups and hydrophobes associative with one another in a saturated aqueous solution of an alkali metal salt of a carboxylic acid.Type: ApplicationFiled: July 30, 2001Publication date: June 19, 2003Inventors: William J. Benton, Edward E. Miller, Neil Magri, John Toups
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Publication number: 20030114318Abstract: Fluids, such as completion fluids, containing at least one alkali metal tungstate and optionally at least one chelating agent are described. Methods of removing a filter cake from a well bore surface, which may include one or more alkaline earth metal sulfates, is also described, wherein the method includes contacting the filter cake with the completion fluid of the present invention. A drilling fluid or mud is also described wherein the drilling fluid contains at least one alkali metal tungstate. The drilling fluid preferably further contains at least one emulsifier or surfactant and at least one hydrocarbon-based fluid. The various fluids of the present invention can contain other conventional ingredients and optionally at least one alkali metal formate. The present invention permits the fluids to be essentially solids free due to the use of the alkali metal tungstate.Type: ApplicationFiled: August 9, 2002Publication date: June 19, 2003Inventors: William J. Benton, Neal F. Magri
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Publication number: 20020117457Abstract: An aqueous-based composition containing cesium formate and at least one chelating agent is described. Methods of removing scaling deposits, which may include alkaline earth metal sulfates, present on surfaces, including porous media, such as alkaline earth metal sulfate buildup in a well bore, is also described, wherein the method includes contacting the alkaline earth metal sulfate with the compositions of the present invention to remove the scaling deposits. A completion fluid containing at least one alkali metal formate, at least one acid and/or at least one chelating agent, and optionally at least one surfactant or mutual solvent is also described. Methods of removing a filter cake from a well bore surface, which may include weighting agents such as calcium carbonate, is also described, wherein the method includes contacting the filter cake with the completion fluid of the present invention.Type: ApplicationFiled: July 6, 2001Publication date: August 29, 2002Inventors: William J. Benton, Neal F. Magri, James R. VonKrosigk, Michael T. Pelletier
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Patent number: 6423802Abstract: Novel polymer compositions are disclosed, along with their use as well service fluids, for example as completion fluids, work-over fluids or drilling fluids, comprising water soluable copolymers having sulfonate groups and carboxylate groups, along with alkali metal salts of carboxylic acid. Exemplary copolymer has 5 to 95 wt. % structural units derived from 2-acrylamido-2-methylpropanesulfonic acid or salt thereof, and 5 to 95 wt. % structural units derived from acrylic acid or salt thereof. A salt of the polymer may be used, such as the sodium, potassium, ammonium and calcium salts. Exemplary alkali metal salts of the polymer composition include sodium, potassium and cesium salts of formic acid and/or acetic acid in amounts suitable to develop high temperature viscosity suitable for such well servicing fluids. The polymer composition is hydrateble/soluble in a brine of sodium and/or potassium and/or cesium salts of formic and/or acetic acid.Type: GrantFiled: May 21, 1999Date of Patent: July 23, 2002Assignees: Cabot Corporation, Frtiz Industries, Inc.Inventors: Edward Miller, William J. Benton
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Publication number: 20020033471Abstract: A coolant composition containing at least cesium formate is described as well as the use of the coolant composition in radiators and other cooling devices. The coolant composition permits a variety of benefits to the engine performance and operation of the vehicle. Other uses for the cesium formate in cooling systems and other apparatuses are described.Type: ApplicationFiled: June 1, 2001Publication date: March 21, 2002Inventors: Thomas H. Odle, William J. Benton
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Patent number: 5607623Abstract: Polyaspartic acid and its salts ms used as a carbon dioxide corrosion inhibitor for ferrous metal surfaces in contact with a substantially acidic corrosive aqueous saline environment. In particular, carbon dioxide corrosion of mild steel in brine substantially free of dissolved oxygen can be effectively inhibited under mild to moderate dynamic flow use conditions by relatively low concentrations of polyaspartic acid.Type: GrantFiled: March 8, 1995Date of Patent: March 4, 1997Assignee: Donlar CorporationInventors: William J. Benton, Larry P. Koskan
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Patent number: 4246302Abstract: A multi-band liquid crystal film for visual observation of two or more patterns is prepared by laminating at least two polyurethane films, each containing discrete aggregates of liquid crystals against a black film such that the visual response of the liquid crystals of each succeeding polyurethane film is different than that of the liquid crystals in the other film or films.Type: GrantFiled: June 27, 1979Date of Patent: January 20, 1981Inventors: William J. Benton, Joseph R. Quigley
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Patent number: 4182700Abstract: Polyurethane elastomer films containing dispersed discrete aggregates of liquid crystals can be produced with improved color response. The liquid crystal aggregates are dispersed in uncured polyurethane elastomer precursors which are cured as a film. After the curing process has commenced but before the curing process has been completed, the partially cured film is subjected to shear stresses to change the shape of the partially cured material which thereafter is allowed to complete the cure in the altered shape.Type: GrantFiled: June 14, 1978Date of Patent: January 8, 1980Inventors: William J. Benton, Joseph R. Quigley