Composition For In Situ Soil Conditioning Or Treating Or Process Of Preparing Patents (Class 523/132)
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Patent number: 12163095Abstract: A copolymer useful as a water clarifier for a water phase of a production fluid is selected from those with a first monomer and a second monomer, and in one non-limiting embodiment having the general formula: wherein y is 10 to 50,000; z is 1 to 10,000 and n is 1 to 250. The copolymer may optionally include a third monomer. In an optional embodiment of the process, the fluid has a hydrocarbon phase, and the process further involves simultaneously drying the hydrocarbon phase of the fluid along with clarifying the water phase.Type: GrantFiled: April 28, 2021Date of Patent: December 10, 2024Assignee: Baker Hughes Oilfield Operations LLCInventor: Wojciech Jakubowski
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Patent number: 11702594Abstract: Disclosed herein is a method for stabilising a volume of soil (e.g. a volume of soil that defines a road base or a road sub-base). The method comprises applying a coating agent comprising one or more salts of fatty acids derived from coconut oil to the soil, whereby soil particles in the soil are coated with the coating agent, and then applying to the soil a setting agent comprising a metallic salt that is capable of reacting with the one or more salts of fatty acids derived from coconut oil, whereupon a set product is formed. The soil is subsequently compacted, whereby the coated soil particles are consolidated.Type: GrantFiled: March 16, 2021Date of Patent: July 18, 2023Inventors: Louis Allen, Simon Lewer
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Patent number: 11352559Abstract: A method is described for improving water retention in soil, which involves mixing a super absorbing resin (SAR) composite with the soil. The SAR composite comprises a natural pozzolan and at least one polymer or copolymer. The SAR composite may be in the form of granules having an average longest dimension of 0.2-10 mm, though the SAR composite may be pelletized or formed in other sizes. The SAR composite may release water at a faster rate in a soil when exposed to drought conditions.Type: GrantFiled: October 2, 2018Date of Patent: June 7, 2022Assignee: Imam Abdulrahman Bin Faisal UniversityInventors: Ayhan Bozkurt, Omer Aga, Huseyin Tombuloglu, Ismail Anil, Seyda Tugba G. Anil
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Patent number: 9441340Abstract: A method for applying a water soluble soil stabilizer to soil wherein the soil stabilizer is added to a solid carrier.Type: GrantFiled: October 22, 2012Date of Patent: September 13, 2016Inventors: Michael Dennis Krysiak, Daniel Paul Madigan
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Patent number: 9403730Abstract: A hydroseeding substrate and a hydroseeding slurry for seeding of grass and other vegetation are disclosed. The hydroseeding substrate includes mulch and a cover composition including bentonite clay and cellulosic water dispersible polymer or starch. Other desired optional ingredients may also be included. Methods of forming a hydroseeding slurry and methods of using the slurry for seeding are also disclosed.Type: GrantFiled: February 13, 2014Date of Patent: August 2, 2016Assignee: LSC ENVIRONMENTAL PRODUCTS, LLCInventors: Joseph Donze, Joel E. Lanz
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Patent number: 9193634Abstract: A hydroseeding substrate and a hydroseeding slurry for seeding of grass and other vegetation are disclosed. The hydroseeding substrate includes mulch, a cover composition including bentonite clay and cellulosic water dispersible polymer and/or starch, and surface-treated HPMC. Other desired optional ingredients may also be included. Methods of forming a hydroseeding slurry and methods of using the slurry for seeding are also disclosed.Type: GrantFiled: July 29, 2014Date of Patent: November 24, 2015Assignee: LSC ENVIRONMENTAL PRODUCTS, LLCInventors: Joseph Donze, Joel E. Lanz
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Patent number: 8962750Abstract: Pebble or granular based elastomeric surfacing materials that include an aliphatic thermoplastic polyurethane based pebble or granule bonded together with a two-part aliphatic polyurethane binder are provided. In one embodiment, an A side of the two-part binder has at least one polyol, and a B side of the two-part binder has multiple isocyanates. The multiple isocyanates can include for example hydrogenated methylene diphenyldisocyanate and hexamethylene diisocyanate. The A side and the B side of the binder are utilized to bond the pebbles together to form a surface that can be either porous or non-porous. In another embodiment, an A side of a two-part binder includes multiple polyols. The multiple polyols can include for example esterified ricinoleic acid polyols and caprolactone polyols. The A side of the two-part binder can be combined with a B side of the two-part binder and pebbles to form a non-porous surface.Type: GrantFiled: July 10, 2012Date of Patent: February 24, 2015Assignee: Landscape Structures Inc.Inventor: Gerald M. Saluti
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Publication number: 20150031786Abstract: This invention provides processes for forming powders comprising at least one active compound and at least one carrier. The processes comprise (i) heating at least one active compound to at least its melting point or softening point; and (ii) in an extruder, combining at least the at least one active compound with at least one carrier, to form combined ingredients, and cooling the combined ingredients as they pass through the extruder, such that the combined ingredients exit the extruder at about ambient temperature in the form of a powder having particles sized so that about 95 wt % or more of the powder passes through a screen of about 8 standard U.S. mesh.Type: ApplicationFiled: February 14, 2013Publication date: January 29, 2015Inventor: Gregory H. Lambeth
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Publication number: 20140323609Abstract: A polyacrylamide based agricultural composition as a microemulsion is provided in form of a water-in-oil microemulsion with polyacrylamide dissolved in the water phase where the polyacrylamide solids content is from about two up to about 15 percent by weight, which is then further diluted in water at the time of use to impart the desired characteristics of the polymer to the water phase or to the material to which the water phase is applied.Type: ApplicationFiled: June 19, 2009Publication date: October 30, 2014Inventors: Franklin E. Sexton, Ryan T. Strash, Todd J. O'Connell
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Patent number: 8822567Abstract: Soil cement slurry is produced by mixing blast-furnace slag fine particles with a specified fineness and Portland cement at a specified ratio to prepare blast-furnace slag cement and using a specified amount of slurry composition for ground improvement including this blast-furnace slag cement with water and an admixture per 1 m3 of ground. The admixture contains specified amounts of a hardening accelerator, a defoamer and a fluidizer.Type: GrantFiled: September 12, 2012Date of Patent: September 2, 2014Assignee: Takemoto Yushi Kabushiki KaishaInventors: Takao Kono, Toshio Yonezawa, Eiji Sato, Tomonori Yoshida, Mitsuo Kinoshita, Shinji Tamaki
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METHOD OF MANUFACTURING SOIL REINFORCED BY MICROBE-BASED BIO-BINDERS AND SOIL PRODUCED BY THE METHOD
Publication number: 20140238267Abstract: The present invention relates to a method of manufacturing soil reinforced by microbe-based bio-binders and soil produced by the method. The bio-binders are not harmful to humans, do not cause environmental pollution and secure sufficiently the soil strength and resistance against wind. According to the method, the soil is prepared by binding sand whose major components are silica and alumina, ureolytic microbes, urea, calcium ion, and polymer fibers, and the content of polymer fibers in sand ranges from 0.05 wt % to 5 wt %. In addition, it is preferable that the microbes provide CaCO3 at a rate at 1˜7×10?9 g CaCO3 ppt cell?1 hr?1 under optimum conditions.Type: ApplicationFiled: November 10, 2011Publication date: August 28, 2014Applicants: LOTTE ENGINEERING & CONSTRUCTION, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY, ECHO PHILEInventors: Sang Chul Bang, Sookie S. Bang, Seong Rok Choi, Seok Jin Lee, Joo Ho Lee, Jong Sun Kim -
Publication number: 20130197128Abstract: Methods and compositions for improving the strength and longevity of secondary roadways through environmentally sound practices are disclosed herein. A composition for road sealing includes an aqueous emulsion of acrylic and vinyl acetate polymer, water, and a resin-modified emulsion, wherein the resin-modified emulsion includes a mixture of pitch and rosin, an emulsifying agent, and water.Type: ApplicationFiled: December 21, 2012Publication date: August 1, 2013Applicant: MIDWEST INDUSTRIAL SUPPLY, INC.Inventor: MIDWEST INDUSTRIAL SUPPLY, INC.
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Publication number: 20130195553Abstract: A soil stabilizer containing a carbonaceous material is disclosed, together with methods for preparing and using the soil stabilizer.Type: ApplicationFiled: April 8, 2011Publication date: August 1, 2013Inventor: Yetkin Yildirim
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Patent number: 8410194Abstract: The biopolymer additive, in combination with water, functions as a soil conditioner that affects soil erosion and water infiltration. The biopolymer additive is derived from complex galactomannon-rich succulent plants. The succulent-derived (biopolymer) additive (SDA) may be used alone or in combination with polymers and copolymers of polyacrylamide (PAM). The combination of the SDA and PAM has a synergistic effect so that the resulting composition yields unexpected results and is a more effective treatment than either SDA or the PAM alone.Type: GrantFiled: April 9, 2010Date of Patent: April 2, 2013Assignee: The United States of America as represented by the Secretary of AgricultureInventors: William J. Orts, Gregory M. Glenn, Syed Hussain Imam, Robert E. Sojka, C. Steven Sikes, Mark A. Hochwalt
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Patent number: 8383549Abstract: Methods of protecting a crop from weed infestation, controlling weed growth, reducing fumigant dosage in crop protection, and reducing the growth of weeds by applying a polymer composite material with or without a biocide to soil, a crop, a vegetable, a weed, or combinations thereof are provided. In an aspect, the disclosure provides for a polymer composite material including a base polymer coated with: (1) a first barrier layer; (2) a second layer with our without a biocide; and (3) a third protective layer.Type: GrantFiled: October 21, 2010Date of Patent: February 26, 2013Assignees: Bayer Cropscience LP, Bayer Innovation GmbHInventors: Mark Parrish, Ralf Dujardin
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Patent number: 8372418Abstract: Polymer composite material with biocide functionality, preferably for the use in agriculture, comprising at least one base polymer compound and at least one biocide active ingredient, wherein the biocide active ingredient is an organic biocide that can be emitted from the polymer composite material by diffusion and/or osmosis and method of its production.Type: GrantFiled: July 18, 2008Date of Patent: February 12, 2013Assignee: Bayer Innovation GmbHInventors: Ralf Dujardin, Rolf Christian Becker, Marco Toapanta, Arno Schmuck, Almuth Streitenberger
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Patent number: 8372417Abstract: Polymer composite material with barrier functionality, in particular for the use in fumigation methods, comprising at least one base polymer compound and at least one barrier functional layer, wherein the barrier functional layer comprises at least one binder that is cross-linkable and after cross-linking capable of water absorbing and gel-forming.Type: GrantFiled: July 17, 2008Date of Patent: February 12, 2013Assignee: Bayer Innovation GmbHInventors: Ralf Dujardin, Arno Schmuck, Almuth Streitenberger
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Publication number: 20120321228Abstract: A PAM delivery product is a sold form of polyacrylamide polymer (PAM). Among other things, the PAM delivery product can be used to prevent ruts formed during center-pivot irrigation, prevent erosion of irrigation ditches, clarify wastewater, and assist seed germination and seedling establishment. The PAM delivery product includes pure PAM and water to create a solid “loaf”. Water-soluble calcium (Ca) can also be added to the PAM delivery product depending on the specific application for the PAM delivery product. When Ca is used in the PAM delivery product, it is present in a 9:1 ratio to the PAM.Type: ApplicationFiled: May 11, 2012Publication date: December 20, 2012Inventors: Richard C. Roos, Richard A. Hansen
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Publication number: 20120207551Abstract: A treatment for soils and road base materials including applying to the soil or road base materials an organosilicon waterproofing agent, and applying to the soil or road base material a soil stabilizer binder including an acrylate ester polymer emulsion.Type: ApplicationFiled: February 11, 2011Publication date: August 16, 2012Inventors: Lawrence James Guilbault, Christopher Rider
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Patent number: 8178596Abstract: The PAM delivery product is a solid form of polyacrylamide polymer (PAM). Among other things, the PAM delivery product can be used to prevent ruts formed during center-pivot irrigation, prevent erosion of irrigation ditches, clarify wastewater, and assist seed germination and seedling establishment. The PAM delivery product includes pure PAM and water to create a solid “loaf.” Water-soluble calcium (Ca) can also be added to the PAM delivery product depending on the specific application for the PAM delivery product. When Ca is used in the PAM delivery product, it is present in a 9:1 ratio to the PAM There are no fixing agents needed in the PAM delivery product; it is pure active ingredient.Type: GrantFiled: February 2, 2006Date of Patent: May 15, 2012Inventors: Richard C. Roos, Richard A. Hansen
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Patent number: 8076391Abstract: A composition for erosion control, dust abatement, and/or water clarification comprising an anionic polyacrylamide, and at least one inorganic salt, wherein the combination of the anionic polyacrylamide and at least one inorganic salt form a molecule with a chain larger than 5×10?3 ?m (50 angstroms).Type: GrantFiled: October 21, 2004Date of Patent: December 13, 2011Inventor: Aicardo Roa-Espinosa
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Publication number: 20110252557Abstract: A method for constructing a structure, preferably a swimming pool, includes the steps of excavating a cavity, applying a sub-base such as sand along at least a portion of the cavity, forming the sub-base into the desired shape of the structure, and applying a solidifier solution to the sub-base. The solidifier solution comprises a polymer in solution. The solidifier solution and the sub-base harden to form a smooth, hard composite layer in the base of the cavity, with the composite layer containing at least some of the polymer and at least some of the sub-base in a polymer lattice. After the solidifier solution has been applied, a liner may be installed, and the swimming pool may be filled.Type: ApplicationFiled: April 16, 2010Publication date: October 20, 2011Applicant: SB Industries, LLCInventors: Joanna Oat, Daniel Dalmer, Adrian de Krom, Robert M. Shaw, JR.
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Publication number: 20110113983Abstract: Hydraulically applied fiber matrix compositions for use on soils include a water-soluble, crosslinkable, hydratable gum, and a compound capable of crosslinking the water-soluble, crosslinkable, hydratable gum. The compositions my further include hydrocolloids and mulch. The hydraulically applied fiber matrix compositions are useful for hydroseeding and soil stabilization.Type: ApplicationFiled: November 9, 2010Publication date: May 19, 2011Applicant: Chemstar Products CompanyInventors: Cory J. Bernu, Jeremy L. Bachman, Paul F. Werler
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Publication number: 20100125111Abstract: Compositions and methods for resisting soil erosion. The compositions comprise a polymer mixed with an organic material. The polymer preferably comprises polyacrylamide or an acrylamide copolymer having anionic functional groups. A second polymer to promote the formation of a film may also be utilized. The organic material comprises natural and synthetic fiber material. The methods of the present invention comprises applying the compositions of the present invention to an area of land sought to be provided with soil erosion resistant properties and thereafter allowing water to mix therewith, as may be supplied or provided naturally by precipitation.Type: ApplicationFiled: January 27, 2010Publication date: May 20, 2010Inventor: SCOTT HARRISON
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Publication number: 20100121127Abstract: The invention resides in a method for manufacturing a metallic hydroxide-based and metallic oxide-based powder, which is self-dispersing in water, characterized in that a metallic oxide powder is partially treated with a polymer in the form of an aqueous emulsion and/or solution, in such a way that the level of metallic hydroxide by dry weight within said treated powder is less than 99% of its total weight, and in that said polymer is a water-soluble homopolymer or copolymer containing at least one vinylic monomer. In one particular variant, the polymer is a water-soluble copolymer containing a vinylic monomer and a non-ionic monomer, and the metal is calcium and/or magnesium. The invention also pertains to the powders obtained, their uses in aqueous suspensions, in treating waste, as a chemical additive, or as a soil amendment.Type: ApplicationFiled: December 11, 2007Publication date: May 13, 2010Applicant: COATEX S.A.S.Inventors: Yves Kensicher, Jean Moro, Jean-Marc Suau
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Publication number: 20100071309Abstract: A soil stabilization system, method of stabilizing soil, and a stabilized soil having improved engineering characteristics such as increased bearing ratio and improved triaxial compression characteristics. Select embodiments comprise one or more lipophilic fluid mixtures, fibers which may be synthetic, natural or both, the lipophilic fluid and fibers mixed into soil of a pre-specified moisture content in pre-specified dry soil weight ratios. The system is optimized by adjusting the moisture content of the soil to a pre-specified figure prior to treatment, by compacting the treated soil to a pre-specified standard and finally by aging the resultant compacted treated soil for a pre-specified period to optimize engineering characteristics thereof. Select embodiments are suitable for use at temperatures approaching ?60° F.Type: ApplicationFiled: April 30, 2009Publication date: March 25, 2010Inventors: Charles D. Brangan, John K. Newman, Robert Vitale
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Patent number: 7666923Abstract: Compositions and methods for concomitantly resisting fire and soil erosion. The compositions comprise an aqueous mixture of a polymer mixed with an organic material. The polymer preferably comprises polyacrylamide or a copolymer of polyacrylamide having anionic functional groups. The organic material comprises either cellulose, mulch and/or seed and mulch. The methods of the present invention comprise providing or forming an aqueous mixture of the compositions of the present invention and applying them to an area of land sought to be provided with soil erosion and/or fire resistant properties.Type: GrantFiled: May 8, 2008Date of Patent: February 23, 2010Inventor: Scott Harrison
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Patent number: 7615579Abstract: The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vortex time of 40 seconds or less. In particular, the superabsorbent polymer includes from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; from about 0.001 to about 5.0 wt. % of internal crosslinking agent; wherein the wherein the composition has a degree of neutralization of more than about 20%; and from about 0.05 to about 10.0 wt. % of an encapsulated blowing agent.Type: GrantFiled: December 14, 2006Date of Patent: November 10, 2009Assignee: Evonik Stockhausen, Inc.Inventors: Mark C. Joy, Whei-Neen Hsu
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Publication number: 20090239973Abstract: The PAM delivery product is a solid form of polyacrylamide polymer (PAM). Among other things, the PAM delivery product can be used to prevent ruts formed during center-pivot irrigation, prevent erosion of irrigation ditches, clarify wastewater, and assist seed germination and seedling establishment. The PAM delivery product includes pure PAM and water to create a solid “loaf.” Water-soluble calcium (Ca) can also be added to the PAM delivery product depending on the specific application for the PAM delivery product. When Ca is used in the PAM delivery product, it is present in a 9:1 ratio to the PAM There are no fixing agents needed in the PAM delivery product; it is pure active ingredient.Type: ApplicationFiled: February 2, 2006Publication date: September 24, 2009Inventors: Richard C. Roos, Richard A. Hansen
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Patent number: 7503143Abstract: A method for applying PAM to soil wherein said PAM is intermixed, impregnated and/or applied to solid carriers.Type: GrantFiled: October 15, 2002Date of Patent: March 17, 2009Assignee: Encap LLC.Inventors: Michael Dennis Krysiak, Daniel Paul Madigan
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Patent number: 7504445Abstract: A hydro-seeding composition having the form of an aqueous mixture comprising a polyacrylamide polymer and seeds. The polyacrylamide polymer is a potassium anionic polymer salt or an ammonium anionic polymer salt, instead of a sodium-based polyacrylamide polymer. The hydro-seeding composition may also include various soil amendments. The seeds are grass seeds or plant seeds.Type: GrantFiled: September 29, 2005Date of Patent: March 17, 2009Assignee: SNF S.A.S.Inventor: Cyril Collin
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Publication number: 20080214696Abstract: Compositions and methods for concomitantly resisting fire and soil erosion. The compositions comprise an aqueous mixture of a polymer mixed with an organic material. The polymer preferably comprises polyacrylamide or a copolymer of polyacrylamide having anionic functional groups. The organic material comprises either cellulose, mulch and/or seed and mulch. The methods of the present invention comprise providing or forming an aqueous mixture of the compositions of the present invention and applying them to an area of land sought to be provided with soil erosion and/or fire resistant properties.Type: ApplicationFiled: May 8, 2008Publication date: September 4, 2008Inventor: SCOTT HARRISON
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Patent number: 7407993Abstract: Compositions and methods for concomitantly resisting fire and soil erosion. The compositions comprise an aqueous mixture of a polymer mixed with an organic material. The polymer preferably comprises polyacrylamide or a copolymer of polyacrylamide having anionic functional groups. The organic material comprises either cellulose, mulch and/or seed and mulch. The methods of the present invention comprise providing or forming an aqueous mixture of the compositions of the present invention and applying them to an area of land sought to be provided with soil erosion and/or fire resistant properties.Type: GrantFiled: October 22, 2004Date of Patent: August 5, 2008Assignee: Terra Novo, Inc.Inventor: Scott Harrison
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Patent number: 7270879Abstract: Disclosed herein is a particle comprising a particulate substrate; and a thermoplastic elastomer present on or in the substrate as an amount sufficient to improve the dust suppression of the particle above that which would occur if the thermoplastic elastomer was absent. Disclosed herein is a particle comprising a particulate substrate; and a thermoplastic elastomer, wherein the particle has a compressive strength retention of greater than about 50% as measured by a UCS test and a turbidity of about 10 to 200 NTU after a one hour ball mill test.Type: GrantFiled: April 15, 2004Date of Patent: September 18, 2007Assignee: Hexion Specialty Chemicals, Inc.Inventor: Avis Lloyd McCrary
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Patent number: 7244492Abstract: Coated particle substrates having a coating of resin and/or water soluble polymers and soluble, fibrous material are provided for use in subterranean formations. The coated particle substrate particles are typically proppants used to prop open subterranean hydrocarbon formations during recovery processes, such as after a hydraulic fracture, and provide both improved settling characteristics and improved hydrocarbon flow characteristics due to the conductive channels formed by the soluble fibers downhole. Methods of making the coated particles are also described.Type: GrantFiled: March 4, 2004Date of Patent: July 17, 2007Assignee: Fairmount Minerals, Ltd.Inventors: A. Richard Sinclair, Syed Akbar, Patrick R. Okell
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Patent number: 7238733Abstract: Storable water-silica suspensions and methods of cementing well bores are provided. The storable water-silica suspensions are basically comprised of water, silica and an effective amount of a suspending agent selected from the group consisting of colloidal materials, clays and gel forming polymers.Type: GrantFiled: September 29, 2004Date of Patent: July 3, 2007Inventors: Jan Pieter Vijn, Bach Dao
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Patent number: 7163966Abstract: The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vortex time of 40 seconds or less. In particular, the superabsorbent polymer includes from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; from about 0.001 to about 5.0 wt. % of internal crosslinking agent; wherein the wherein the composition has a degree of neutralization of more than about 20%; and from about 0.05 to about 10.0 wt. % of an encapsulated blowing agent.Type: GrantFiled: December 19, 2003Date of Patent: January 16, 2007Assignee: Stockhausen, Inc.Inventors: Mark C. Joy, Whei-Neen Hsu
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Patent number: 7074266Abstract: A heterogeneous mixture produced by blending aliphatic or cyclic organic compounds with carboxylic acids of chemical structure R-COOH and applied to soils in a manner to produce high levels of dust and erosion control, and soil stabilization. Alternatively, a heterogeneous mixture may be produced by blending aliphatic or cyclic organic compounds with polyolefins of chemical structure CnH2n or R—C2nH3n, and applied to soils in a manner to produce high levels of dust control and soil stabilization. The aliphatic and cyclic compounds act as plasticizers and carriers for the carboxylic acids or polyolefin compounds. When applied to soil the carrier provides a mechanism for the carboxylic acid or polyolefin to penetrate the soil and also acts as a dust suppressing weighting agent. The plasticized carboxylic acid and/or polyolefin provides a durable, reworkable binder that associates small particulates while stabilizing soil and aggregate.Type: GrantFiled: January 7, 2005Date of Patent: July 11, 2006Assignee: Midwest Industrial Supply, Inc.Inventors: Todd R. Hawkins, Leland E. Beyersdorff, Robert W. Vitale
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Patent number: 7005459Abstract: The present invention includes a composition having a co-continuous interconnecting channel morphology. These co-continuous interconnecting channels are predominately occupied with a polymer and particles that control the percolation through the composition. The particles are composed of a material such as an absorbing agent, releasing agent and/or activation agent. The polymer composition may be used to form a desired shaped article such as plug type inserts and liners for closed containers, or it may be formed into a film, sheet, bead or pellet.Type: GrantFiled: November 26, 2003Date of Patent: February 28, 2006Assignee: CSP Technologies, Inc.Inventor: Ihab M. Hekal
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Patent number: 6987082Abstract: A controlled release product is provided having a suppressed initial release period and a predetermined longevity. The product includes a particulate water soluble core material and a semi-permeable coating layer applied on the core material for controlling the release rate of the core material.Type: GrantFiled: October 10, 2003Date of Patent: January 17, 2006Assignee: OMS Investments, Inc.Inventors: Edze Jan Tijsma, Johannes Gijsbertus Antonius Terlingen, Saskia Haas-Schrijen, Hein Herman Vriesema
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Patent number: 6916481Abstract: The invention relates to an active substance vector multiparticulate system and to the production and use thereof. The object of the invention is an active-substance vector multiparticulate system comprising one or several active substances included in a hydrophilic organic matrix comprising at least one hydrosoluble and/or hydrodispersable anionic polymer which is insolubilized by a metallic cation. The invention can be specifically used in the food industry, detergents and agrochemistry.Type: GrantFiled: April 12, 2000Date of Patent: July 12, 2005Assignees: Aventis CropScienceInventors: Christian Prud'Homme, Etienne Fleury, Jean-Paul Michalon, Robert Zerrouk
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Patent number: 6846858Abstract: A composition or composite structure having an appearance of soil or a soil mixture and method of making and using the composition are disclosed. The composition comprises a mixture of cellulose particles and a binding adhesive. The mixture of cellulose particles may be selected from wood particles, wood chips, sawdust, or a combination thereof. The cellulose particles comprise a plurality of sizes and a plurality of shapes. The cellulose particles may be color-treated, dyed, stained, or bleached to a desired color such as black, dark brown, tan, or a combination thereof. Also disclosed are kits comprising the cellulose particle mixture and an adhesive packaged together with instructions for use.Type: GrantFiled: April 24, 2002Date of Patent: January 25, 2005Inventor: Brenton L. Lemay
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Patent number: 6835761Abstract: Compositions and method for resisting soil erosion. The compositions comprise either an aqueous mixture of a polymer mixed with an organic material or, alternatively, a polymer and organic material that can be mixed in water. The polymer preferably comprises polyacrylamide having anionic functional groups and the organic base comprises either cellulose, mulch and/or seed and mulch. The methods of the present invention comprise providing or forming an aqueous mixture of the compositions of the present invention and applying them to an area of land sought to be provided with soil erosion resistance.Type: GrantFiled: February 18, 2003Date of Patent: December 28, 2004Assignee: Terra Novo, Inc.Inventor: Scott Harrison
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Patent number: 6824326Abstract: A composition including a vegetable oil and a structural material selected from a group comprising soil, sand, bitumen, asphalt, and concrete. The polymerized vegetable oil being substantially within a range of 2%-20% by weight of the structural material.Type: GrantFiled: March 30, 2001Date of Patent: November 30, 2004Assignee: University of Alaska FairbanksInventor: Lutfi Raad
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Patent number: 6656994Abstract: The use is described of polysulfide-free preparations comprising, based on solids content, from 40 to 99.5% by weight of at least one water-dispersible copolymer and from 0.5 to 10% by weight of at least one alkoxylated ionic or nonionic emulsifier, as additives for construction materials based on loam or clay. The building materials based on loam or clay and comprising the preparation are described, as are the use of the construction materials and a process for treating construction materials with the preparation.Type: GrantFiled: November 9, 2001Date of Patent: December 2, 2003Assignee: BASF AktiengesellschaftInventors: Stefan Dreher, Joachim Roser, Joachim Pakusch, Dietbert Knöfel, Karl-Georg Boettger
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Patent number: 6656882Abstract: A controlled release product is provided having a suppressed initial release period and a predetermined longevity. The product includes a particulate water soluble core material and a semi-permeable coating layer applied on the core material for controlling the release rate of the core material.Type: GrantFiled: February 28, 2001Date of Patent: December 2, 2003Assignee: OMS Investments, Inc.Inventors: Edze Jan Tijsma, Johannes Gijsbertus Antonius Terlingen, Saskia Haas-Schrijen, Hein Herman Vriesema
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Patent number: 6632527Abstract: Composite particles made of a binder and filler material are provided for use in subterranean formations. The filler is finely divided mineral and optional fiber. The particles are proppants useful to prop open subterranean formation fractures. The particles are also useful for water filtration and artificial turf for sports fields. Methods of making the composite particles are also disclosed.Type: GrantFiled: November 30, 1999Date of Patent: October 14, 2003Assignee: Borden Chemical, Inc.Inventors: Robert R. McDaniel, Johannes A. Geraedts
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Patent number: 6610282Abstract: Disclosed are compositions containing biologically active compounds that slowly release the biologically active compound. These compositions may be directly incorporated into the locus to be protected or may be applied to a structure in a coating.Type: GrantFiled: April 14, 1999Date of Patent: August 26, 2003Assignee: Rohm and Haas CompanyInventor: Tirthankar Ghosh
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Patent number: 6607035Abstract: The present invention provides methods of preventing the flow of water or gas or both through a subterranean zone having a high temperature and a depth such that a long pumping time is required to place a sealing composition therein. The methods basically comprise the steps of preparing a polymeric sealing composition comprised of water, a cross-linking agent and a selected water-soluble polymer which reacts with the cross-linking agent and forms a sealing gel which is stable for a desired period of time at the temperature of the zone and has a pumping time before gelation in the presence of the cross-linking agent whereby the composition can be pumped to the depth of the zone and placed therein. Thereafter, the sealing composition is pumped into the zone and allowed to form a sealing gel therein.Type: GrantFiled: October 26, 2000Date of Patent: August 19, 2003Assignee: Halliburton Energy Services, Inc.Inventors: Baireddy R. Reddy, Larry S. Eoff
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Patent number: RE40941Abstract: The present invention includes processes and resulting structures for producing a modified polymer having interconnecting channels. The interconnecting channels act as controlled transmission passages through the polymer. A hydrophilic agent is blended into the polymer so that it is distributed within the polymer. In one embodiment, a releasing material is blended into the polymer so that the releasing material is distributed within the product. The product is solidified so that the hydrophilic agent forms passages in the product through which a desired composition is communicable to the releasing material that is entrained within the product. The solidified product may be used to form a desired shaped article such as plug type inserts and liners for closed containers, or it may be formed into a film, sheet, bead or pellet.Type: GrantFiled: November 13, 2003Date of Patent: October 20, 2009Assignee: CSP Technologies, Inc.Inventor: Ihab Hekal