Oils, Grease, Tar, Or Wax Removal, By Dissolving Patents (Class 134/40)
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Patent number: 7811387Abstract: The present invention relates to a hard surface cleaning composition comprising a copolymer, wherein said copolymer comprises a zwitterionic unit A or a mixture thereof and another unit B or a mixture thereof, wherein said unit A comprises a betaine group or a mixture thereof and wherein said betaine group of said unit A is a sulphobetaine group or a mixture thereof, and wherein said unit B is derived from vinyl-pyrrolidone.Type: GrantFiled: July 25, 2008Date of Patent: October 12, 2010Assignee: The Procter & Gamble CompanyInventors: Stefano Scialla, Luca Sarcinelli, Annick Julia Oscar Mertens, Marc Francois Theophile Evers, Evelyne Prat, Olivier Anthony, Marie Pierre Labeau, Chi-Thanh Vuong
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Patent number: 7799750Abstract: At least one kind of solvent selected from among nitromethane, nitroethane, d-limonene and 3-methoxybutyl acetate is mixed to 1,1,1,3,3-pentafluorobutane to such an extent as not imparting any flammability. Also, propylene glycol based solvent(s) is mixed to 1,1,1,3,3-pentafluorobutane to such an extent as not imparting any flammability.Type: GrantFiled: July 7, 2008Date of Patent: September 21, 2010Assignee: Kaneko Chemical Co., Ltd.Inventor: Akiyasu Kaneko
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Patent number: 7795199Abstract: The present invention relates to a stable antimicrobial and cleaning compositions including an amine antimicrobial agent; a borate salt; and spores (bacterial or fungal), vegetative bacteria, fungi, or enzyme, and to methods of using the composition. The composition can also include a polyol.Type: GrantFiled: May 5, 2006Date of Patent: September 14, 2010Assignee: Ecolab Inc.Inventors: Katherine J. Molinaro, Daniel E. Pedersen, Joshua P. Magnuson, Michael E. Besse, Jaclyn Steep, Victor F. Man
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Patent number: 7786061Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: October 9, 2009Date of Patent: August 31, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Publication number: 20100209600Abstract: Disclosed are compositions comprising a compound having the formula CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, wherein R is CH3 or C2H5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=1, 2 or 3. Also disclosed are unsaturated fluoroethers selected from the group consisting of CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, CF3(CF2)xC(OR)?CFCF2(CF2)yCF3, CF3CF?CFCF(OR)(CF2)x(CF2)yCF3, CF3(CF2)xCF?C(OR)CF2(CF2)yCF3, and mixtures thereof, wherein R can be either CH3, C2H5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=0, 1, 2 or 3. Also disclosed herein are novel methods of using a composition comprising at least one of the compounds described above as novel solvents, carrier fluids, dewatering agents, degreasing solvents or defluxing solvents.Type: ApplicationFiled: February 8, 2010Publication date: August 19, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: JOAN ELLEN BARTELT, Robert D. Lousenberg
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Patent number: 7740710Abstract: The present invention relates to the use of a mixture, comprising one or more alkyl esters of fatty acids and one or more esters of fatty acids of glycerol carbonate, as a fuel or solvent.Type: GrantFiled: October 7, 2008Date of Patent: June 22, 2010Assignee: Polimeri Europa S.p.A.Inventors: Marcello Notari, Franco Rivetti
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Patent number: 7740709Abstract: An apparatus for removing a photoresist from a substrate which includes a stripping bath chamber, a conveying unit conveying a substrate containing a photoresist through the stripping bath chamber, a photoresist stripper material supplying unit positioned to dispense the photoresist stripper material to the substrate while the substrate is disposed in the stripping bath chamber, an antifoaming agent supplying unit disposed in the stripping bath chamber dispensing an antifoaming agent toward the photoresist stripper material in the stripping bath chamber, an antifoaming agent storing unit communicating with the antifoaming agent supplying unit supplying the antifoaming agent thereto, and a stripper storing unit operatively connected to the stripper supplying unit supplying stored photoresist stripper material thereto.Type: GrantFiled: December 9, 2002Date of Patent: June 22, 2010Assignee: LG Display Co., Ltd.Inventor: Tae Woon Kim
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Patent number: 7741753Abstract: The invention utilizes multiple frequency megasonic generators driving multiple frequency harmonic transducers. Generator signals that increase cavitation efficiency and that have successive time periods with predominantly stable cavitation and predominantly transient cavitation further improve the performance of the cleaning, microbiological inactivation, sonochemistry or processing systems. Probes that monitor the megasonics and feedback the information to the generator provide consistency of process.Type: GrantFiled: October 29, 2007Date of Patent: June 22, 2010Inventor: William L. Puskas
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Patent number: 7736442Abstract: A method for activating the surface of a base material and an apparatus thereof, which is suited to be utilized for pretreatment in electrochemical treatment such as, for example, electroplating or the like, in which the surface of a base material such as metal can be subjected to degreasing treatment and oxide film removing treatment simultaneously, efficiently and rationally, in which productivity can be enhanced and the equipment cost can be reduced, and in which a waste solution can be rationalized so that the solution can be reutilized and the environmental pollution can be prevented. A method for activating the surface of a base material in which the surface of a member to be treated is subjected to degreasing treatment or oxide film removing treatment. Pressurized carbon dioxide is dissolved in a predetermined quantity of water, thereby preparing an oxide film removing solution having a predetermined acidic concentration.Type: GrantFiled: October 18, 2007Date of Patent: June 15, 2010Inventors: Hideo Yoshida, Nobuyoshi Sato, Takeshi Sako, Masato Sone, Kentaro Abe, Kiyohito Sakon
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Patent number: 7718089Abstract: Disclosed is a method for removing residue from a surface comprising: contacting the surface with a composition comprising at least one unsaturated fluorinated hydrocarbon selected from the group consisting of compounds having the formula E- or Z—R1CH?CHR2, wherein R1 and R2 are, independently, C1 to C6 perfluoroalkyl groups, or C1 to C6 hydrofluoroalkyl groups, and recovering the surface from the composition.Type: GrantFiled: November 1, 2006Date of Patent: May 18, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N. Swearingen
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Patent number: 7704400Abstract: A system for washing contaminated sand comprises a plurality of reactors arranged in a sequence from a first to a last reactor. The first reactor is configured to receive contaminated sand. Each reactor comprises a funnel portion in a lower section thereof for accumulating a sand layer and a sand conveying device for removing sand through an aperture defined near a bottom of the funnel portion. Each reactor except the first reactor receives sand removed from a previous reactor. The system also comprises a steam supply system for providing each reactor with steam for washing the sand, a water supply system for providing the last reactor with clean water for rinsing the sand, and a fluid outlet associated with each reactor for removing fluid and providing the fluid to a separator for separating the fluid into first and second portions respectively containing relatively low and high proportions of hydrocarbons.Type: GrantFiled: March 30, 2006Date of Patent: April 27, 2010Inventor: Paul Costinel
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Patent number: 7700004Abstract: This invention relates to cleaning compositions comprising unsaturated fluorinated hydrocarbons. The invention further relates to use of said cleaning compositions in methods to clean, degrease, deflux, dewater, and deposit fluorolubricant. The invention further relates to novel unsaturated fluorinated hydrocarbons and their use as cleaning compositions and in the methods listed above.Type: GrantFiled: November 1, 2006Date of Patent: April 20, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N. Swearingen
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Patent number: 7682457Abstract: An apparatus and method for removing contaminants from a workpiece is described. Embodiments of the invention describe placing a workpiece on a holding bracket within a process chamber to hold and rotate the workpiece to be cleaned. A first cleaning fluid is provided to the workpiece non-device side, while a degasified liquid is provided to the workpiece device side during megasonic cleaning. The degasified liquid inhibits cavitation from occurring on and damaging the device side of the workpiece during megasonic cleaning.Type: GrantFiled: October 4, 2007Date of Patent: March 23, 2010Assignee: Applied Materials, Inc.Inventors: Zhiyong Li, Jianshe Tang, Bo Xie, Wei Lu
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Patent number: 7682460Abstract: The method for cleaning chemical process and hydrocarbon processing apparatuses is performed by establishing a closed flow circulation loop, under specific operating conditions and in the presence of hydrocarbon-based fluids. The cleaning method is monitored by performing chemical/physical analysis. After cleaning the apparatus(es) can be immediately inserted back into the process. An optional degassing step can also be performed, in case the apparatus(es) has to be disassembled for inspection of maintenance.Type: GrantFiled: June 10, 2003Date of Patent: March 23, 2010Inventor: Marcello Ferrara
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Patent number: 7678201Abstract: The invention relates to a chemical composition and a process for using the chemical composition to remove and recover petroleum hydrocarbons from a contaminated substrate including an ammonia compound; a nitrogen-containing compound; and an aqueous carrier solution.Type: GrantFiled: July 24, 2006Date of Patent: March 16, 2010Assignee: Coriba Technologies, L.L.C.Inventor: Harvey G. Cobb
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Patent number: 7674340Abstract: A stabilizer composition comprising a) an amine and b) a compound selected from aliphatic, non-cyclic monomeric polyunsaturated hydrocarbons and terpenes is useful for stabilizing an organic solvent against degradation.Type: GrantFiled: May 1, 2006Date of Patent: March 9, 2010Assignee: Dow Global Technologies, Inc.Inventors: Ulrich Tribelhorn, Marius Kuemin
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Patent number: 7666264Abstract: A cleaning composition based on an aqueous or non-petroleum solvent, and useful for cleaning exterior surfaces such as aircraft exterior surfaces and other metal, glass, rubber and polymer surfaces possesses solvent-like properties with respect to greasy soils; inhibits corrosion and degradation of rubber; is biodegradable; forms a stable emulsion with water; remains optically clear and stable at multiple dilutions with water; and conforms to MIL-PRF 87937D. The composition includes at least one fatty acid methyl ester, at least one ethoxylated alcohol having an HLB ranging from about 10 to about 14, at least one alkyl polyglycoside having an HLB ranging from about 10 to about 14, at least one hydrotrope, an alkali metal silicate, at least one corrosion inhibitor in an amount effective to prevent corrosion on metals, and water.Type: GrantFiled: March 15, 2007Date of Patent: February 23, 2010Assignee: Spray Nine CorporationInventor: Claudia E. Britton
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Publication number: 20100012621Abstract: A method of treating copper sulfide deposits on materials and surfaces that are in contact with electrically insulating oil inside an electrical apparatus. A substantial amount of the electrically insulating oil, normally present in the electrical apparatus, has been removed. The copper sulfide is subjected to treatment with an oxidizing agent which causes a reaction with the copper sulfide deposits. The oxidizing agent can include any compound from the list; chlordioxide, a peroxy acid or ozone.Type: ApplicationFiled: August 13, 2007Publication date: January 21, 2010Applicant: ABB RESEARCH LTD.Inventors: Karin Gustafsson, Robert Leandersson
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Patent number: 7648583Abstract: An aqueous, concentrated neutral detergent composition for use in cleaning medical instruments and metal components (parts, tools, utensils, vessels, equipment, and surfaces) having scale control and corrosion inhibition properties when diluted to about 1/40 ounce per gallon to about 1/10 ounce per gallon in potable water. In addition, the concentrate may be applied directly to metal surfaces, such as stainless steel, to remove rust and other stains, without causing any additional corrosion or other damage to the metal surface.Type: GrantFiled: July 22, 2009Date of Patent: January 19, 2010Assignee: American Sterilizer CompanyInventors: Ann Kneipp McRae, Jason Frank Tirey, Stavroula Maria Heintz, Nancy-Hope Elizabeth Kaiser, Kathleen A. Fix
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Patent number: 7641808Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z-C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: August 29, 2007Date of Patent: January 5, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
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Patent number: 7642224Abstract: An aqueous, concentrated neutral detergent composition for use in cleaning medical instruments and metal components (parts, tools, utensils, vessels, equipment, and surfaces) having scale control and corrosion inhibition properties when diluted to about 1/40 ounce per gallon to about 1/10 ounce per gallon in potable water. In addition, the concentrate may be applied directly to metal surfaces, such as stainless steel, to remove rust and other stains, without causing any additional corrosion or other damage to the metal surface.Type: GrantFiled: July 22, 2009Date of Patent: January 5, 2010Assignee: American Sterilizer CompanyInventors: Ann Kneipp McRae, Jason Frank Tirey, Stavroula Maria Heintz, Nancy-Hope Elizabeth Kaiser, Kathleen A. Fix
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Patent number: 7637271Abstract: A cleaning composition with a limited number of ingredients contains a polyaluminum compound and surfactant. The cleaning composition optionally has an additional amount of fragrance. The cleaning composition optionally has a small amount of solvent. The cleaning composition optionally comprises a comprises a group selected from the group consisting of a dye, a builder, a fatty acid, a colorant, a preservative, a chelating agent, a colloidal silica and mixtures thereof.Type: GrantFiled: October 30, 2008Date of Patent: December 29, 2009Assignee: The Clorox CompanyInventors: Scott Cumberland, Maria Ochomogo
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Patent number: 7638472Abstract: Disclosed is a cleaning solution comprising, based on the total weight of the solution: (a) more than 50% by weight of at least one lactone (component A); (b) and 1 to 10% by weight of at least one surfactant compound (component B) having a HLB ranging from 8 to 15 and selected from the group consisting of compounds of formula wherein: R1 denotes a hydrocarbon group comprising from 1 to 20 carbon atoms; n? is an integer from 1 to 5, X denotes a valence link, —O—, —OCH2, C?O or (CH2)k, k being an integer varying from 1 to 2; Y denotes (RO)jH wherein j is an integer ranging from 2 to 40, and R is a divalent hydrocarbon group, and compounds of formula wherein l is an integer from 6 to 13 and m is an integer from 3 to 15.Type: GrantFiled: April 12, 2005Date of Patent: December 29, 2009Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Chefik Habassi, Bernard Parant
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Patent number: 7638004Abstract: A method of cleaning a microwave plasma applicator tube as described herein includes preparing a microwave plasma applicator for cleaning. A general cleaning of the plasma applicator tube is performed using an organic solvent wash and an ultrapure water wash. Selective cleanings of the tube are performed to remove selected contaminants. Such cleanings include a third wash with an alkaline cleaning solution, a fourth wash with an acidic cleaning solution and another wash using an ammonia and peroxide solution. The tube is rinsed using a sonicating wash performed in ultrapure water followed by drying. Also, the coil can be cleaned using acidic wash solution.Type: GrantFiled: May 31, 2006Date of Patent: December 29, 2009Assignee: Lam Research CorporationInventors: Hong Shih, Harmeet Singh, Raphael Casaes, Duane Outka, Mohammad Kamarehi
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Patent number: 7629307Abstract: Ternary azeotrope and azeotrope-like compositions containing 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene and a third component, and methods of using azeotropes and azeotrope-like compositions to clean substrates, deposit coatings, transfer thermal energy, and lubricate working operations are described.Type: GrantFiled: January 17, 2008Date of Patent: December 8, 2009Assignee: 3M Innovative Properties CompanyInventor: John G. Owens
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Patent number: 7625854Abstract: Ternary azeotrope and azeotrope-like compositions containing 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 1-bromopropane and a third component, and uses thereof, are described.Type: GrantFiled: January 17, 2008Date of Patent: December 1, 2009Assignee: 3M Innovative Properties CompanyInventor: John G. Owens
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Patent number: 7622053Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: January 19, 2009Date of Patent: November 24, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Patent number: 7611588Abstract: The invention relates to methods and compositions for removing metal oxide soils from surfaces. The compositions include an anionic surfactant and a pH adjuster at an acidic pH. In one embodiment, the invention relates to a method of removing a metal oxide soil from a surface by (1) applying a use composition to the surface, the use composition having a pH adjuster in an amount sufficient to provide a use pH at or below 7, an anionic surfactant in an amount to remove a portion of the metal oxide soil, and a carrier, (2) removing the metal oxide soil from the surface with the use composition, and (3) rinsing the surface to remove the use composition and the metal oxide soil.Type: GrantFiled: November 30, 2004Date of Patent: November 3, 2009Assignee: Ecolab Inc.Inventors: Nathan D. Peitersen, Robert D. Hei, Richard K. Staub, Rick O. Ruhr
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Patent number: 7597766Abstract: An aqueous, concentrated neutral detergent composition for use in cleaning medical instruments and metal components (parts, tools, utensils, vessels, equipment, and surfaces) having scale control and corrosion inhibition properties when diluted to about 1/40 ounce per gallon to about 1/10 ounce per gallon in potable water. In addition, the concentrate may be applied directly to metal surfaces, such as stainless steel, to remove rust and other stains, without causing any additional corrosion or other damage to the metal surface.Type: GrantFiled: August 3, 2007Date of Patent: October 6, 2009Assignee: American Sterilizer CompanyInventors: Ann Kneipp McRae, Jason Frank Tirey, Stavroula Maria Heintz, Nancy-Hope Elizabeth Kaiser, Kathleen A. Fix
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Compositions based on fluorinated hydrocarbons and secondary butanol for defluxing electronic boards
Patent number: 7595289Abstract: The present invention concerns the field of fluorinated hydrocarbons and relates to novel compositions containing fluorinated hydrocarbons, secondary butanol and optionally DMSO. These novel compositions are particularly advantageous for defluxing electronic boards in particular for defluxing electronic boards containing “no clean” solder fluxes.Type: GrantFiled: July 2, 2004Date of Patent: September 29, 2009Assignee: Arkema FranceInventors: Jean-Pierre Lallier, Emmanuel Rastelletti -
Patent number: 7588644Abstract: A method of cleaning pipeline pigs of a material that is to be recycled includes providing a vessel having an interior. A manifold is placed within the vessel interior, the manifold having a plurality of openings. The vessel is filled with a solvent that is capable of dissolving the material to be recycled. The pipeline pig is placed in the vessel and above the manifold. A volume of gas is bubbled into the vessel via the manifold openings. These steps are repeated with multiple pigs in sequence so that the material to be recycled is concentrated over time within the vessel. Thereafter, the material that has accumulated within the vessel is recycled. The solvent is preferably a terpene blend with an ethoxylated alcohol. The material to be recycled is preferably paraffin and/or asphaltene.Type: GrantFiled: August 30, 2007Date of Patent: September 15, 2009Assignee: Integris Rentals, L.L.C.Inventor: Pierre L. Olivier
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Patent number: 7588645Abstract: Floor finishes can be stripped using a substantially nonchlorinated concentrate comprising a floor finish dissolver and an at least partially water-unactivated water thickener. The concentrate is diluted with water at an intended use location to activate the water thickener and noticeably increase within sixty minutes or less the viscosity of the resulting mixture, then applied to a hardened floor finish atop a floor and allowed to soften or dissolve the floor finish so that the finish may be removed from the floor.Type: GrantFiled: March 31, 2006Date of Patent: September 15, 2009Assignee: Ecolab Inc.Inventors: Gregory G. Griese, Mark D. Levitt, Brian R. Leafblad, Minyu Li, Robert D. P. Hei, Steven J. Lange, Jan E. Shulman
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Patent number: 7588646Abstract: The invention is generally related to cleaning compositions and methods of using same. More particularly, the invention is related to cleaning compositions which are substantially free of volatile organic chemicals.Type: GrantFiled: May 3, 2007Date of Patent: September 15, 2009Assignee: United Laboratories, Inc.Inventors: Nancy Sherrel, David Rogel
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Patent number: 7588647Abstract: The invention relates to aqueous detergent concentrates based on nonionic, anionic, amphoteric surfactants, with or without the use of customary auxiliaries and additives, said concentrates comprising as cleaning enhancers at least one sorbitan ester of the general formula (I) where R can be an optionally branched, optionally substituted and/or heteroatom-containing saturated or unsaturated acyl radical having 6 to 22 carbon atoms, R1 and R2 independently of one another can be hydrogen or R, Alk is at least one radical from the group consisting of ethylene-, isopropylene-, and butylene-, and a, b and c independently of one another can be values between 0 to 25, where the sum of a+b+c=0 to 25.Type: GrantFiled: June 27, 2005Date of Patent: September 15, 2009Assignee: Goldschmidt GmbHInventors: Felix Muller, Jorg Peggau
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Patent number: 7585828Abstract: Disclosed are windshield washer compositions comprising a nonionic amino-modified silicone-polyalkyl copolymer, said copolymer being water dispersible and hydrophilic. In one embodiment, the disclosed washer compositions are ready to use washer fluids. In another embodiment, the disclosed windshield washer compositions are additive concentrates. Also disclosed is a method of treating a glass surface comprising applying the disclosed compositions to a glass surface. In one embodiment, a suitable glass surface is the windshield of a transportation vehicle such as an automobile.Type: GrantFiled: March 15, 2006Date of Patent: September 8, 2009Assignee: Honeywell International Inc.Inventors: Laurie A. Gallagher, Andrew E. Fenwick
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Patent number: 7585375Abstract: The application of a gel-like material is disclosed for cleaning a surface having foreign matter thereon, such gel-like material produced by magnetically treating and mixing two solutions, the first solution being comprised of water and sodium bicarbonate and the second solution comprised of water and sodium silicate. The first solution is passed through a positively charged magnetic field, and the second solution is passed through a negatively charged magnetic field. The two solutions are then mixed together to form a gel.Type: GrantFiled: April 13, 2009Date of Patent: September 8, 2009Inventor: William C. Reed
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Publication number: 20090199876Abstract: The application of a gel-like material is disclosed for cleaning a surface having foreign matter thereon, such gel-like material produced by magnetically treating and mixing two solutions, the first solution being comprised of water and sodium bicarbonate and the second solution comprised of water and sodium silicate. The first solution is passed through a positively charged magnetic field, and the second solution is passed through a negatively charged magnetic field. The two solutions are then mixed together to form a gel.Type: ApplicationFiled: April 13, 2009Publication date: August 13, 2009Inventor: William C. Reed
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Patent number: 7566347Abstract: A cleaning method and system that utilize an organic cleaning solvent and pressurized fluid solvent is disclosed. The method and system have no conventional evaporative hot air drying cycle. Instead, the method and system utilize the solubility of the organic solvent in pressurized fluid solvent as well as the physical properties of pressurized fluid solvent. After an organic solvent cleaning cycle, the solvent is extracted from the textiles at high speed in a rotating drum in the same way conventional solvents are extracted from textiles in conventional evaporative hot air dry cleaning machines. Instead of proceeding to a conventional drying cycle, the extracted textiles are then immersed in pressurized fluid solvent to extract the residual organic solvent from the textiles. This is possible because the organic solvent is soluble in pressurized fluid solvent. After the textiles are immersed in pressurized fluid solvent, pressurized fluid solvent is pumped from the drum.Type: GrantFiled: November 29, 2007Date of Patent: July 28, 2009Assignee: Eminent Technologies LLCInventors: Timothy L. Racette, Gene R. Damaso, James E. Schulte
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Publication number: 20090178693Abstract: A method for removing contaminants from synthetic resin material includes contacting a particulate synthetic resin material containing at least one contaminant with a solvent other than carbon dioxide. At least a portion of the contaminant is removed from the particulate synthetic resin material and becomes dispersed in the solvent. The solvent, with the contaminant dispersed therein, is then removed from the particulate synthetic resin material. Thereafter, at least a portion of the solvent still contained on the synthetic resin material is removed by contacting the particulate synthetic resin material with liquid carbon dioxide to dissolve the solvent into the carbon dioxide.Type: ApplicationFiled: December 22, 2008Publication date: July 16, 2009Applicant: COOL CLEAN TECHNOLOGIES, INC.Inventors: Jon R. Turner, Kevin N. West
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Patent number: 7556696Abstract: The present invention relates generally to a process and chemical composition for the removal of adherent niobium-rich second-phase particles (SPPs) from pickled niobium-containing zirconium alloys which includes applying to the alloy surface a chemical composition comprising alkaline hydrogen peroxide; an alkali metal meta-silicate; and a magnesium salt.Type: GrantFiled: February 12, 2008Date of Patent: July 7, 2009Assignee: Westinghouse Electric Co LLCInventors: David F. McLaughlin, Vanessa R. Yochum
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Patent number: 7556654Abstract: Methods are disclosed for cleaning a material by applying a cleaning composition having one or more biosurfactants and one or more enzymes to the material. During use, the material is agitated with the cleaning composition. The cleaning composition can be used as a fabric cleaner, carpet cleaner, deodorizer, disinfectant, all purpose cleaner, kitchen counter cleaner, window cleaner, bar soap additive, septic and sewage cleaner, driveway and street cleaner, circuit board cleaner, wheel cleaner, toxic waste cleaner, clean-room cleaner, oil spill cleaner, soil treatment, or metal cleaner.Type: GrantFiled: April 17, 2006Date of Patent: July 7, 2009Inventor: Micheal Nero
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Patent number: 7540292Abstract: A detergent and a method for washing applicable to selectively permeable membranes for proposed, which can attain washing of selectively permeable membranes deteriorated in its membrane performance, such as the flux, in an efficient manner within a brief time at a higher detergent effect without causing deterioration of the selectively permeable membranes and without damaging safety to human and to environment with superior handling aspect. The detergent contains a polyol having a molecular weight not higher than 400 and, if necessary, an organic solvent.Type: GrantFiled: February 23, 2004Date of Patent: June 2, 2009Assignee: Kurita Water Industries Ltd.Inventors: Takahiro Kawakatsu, Nobuhiro Orita, Naoto Hitotsuyanagi
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Patent number: 7524806Abstract: A tran-1,2-dichloroethylene blend which comprises a combination of a major amount of tran-1,2-dichloroethylene and a minor amount of a hydrofluorocarbon or an alkoxy perfluoroalkane having an elevated flash point is disclosed. The combination exhibits a flash point significantly higher than trans-1,2-dichloroethylene alone while containing only a minor amount of the component exhibiting the high Global Warming Potential. The preferred hydrofluorocarbon is 1,1,1,2,2,3,4,5,5,5-decafluoropentane or 3,3,4,4,5,5,6,6,6-nonafluoro-1-hexene and the preferred alkoxy perfluoroalkane is 1-(methoxy)nonafluorobutane.Type: GrantFiled: July 7, 2005Date of Patent: April 28, 2009Assignee: Arkema Inc.Inventor: Jinhuang Wu
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Patent number: 7517414Abstract: The application of a gel-like material is disclosed for cleaning a surface having foreign matter thereon, such gel-like material produced by magnetically treating and mixing two solutions, the first solution being comprised of water and sodium bicarbonate and the second solution comprised of water and sodium silicate. The first solution is passed through a positively charged magnetic field, and the second solution is passed through a negatively charged magnetic field. The two solutions are then mixed together to form a gel.Type: GrantFiled: May 19, 2006Date of Patent: April 14, 2009Inventor: William C. Reed
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Patent number: 7511008Abstract: The present invention relates to associative complexes of water soluble and/or water dispersible polymers and polymeric fluorosurfactants, compositions and methods for modifying substrates to provide treated articles with surface protective properties including easier cleaning, increased stain and/or soil repellency, and increased resistance to bio-fouling and environmental contamination.Type: GrantFiled: September 13, 2007Date of Patent: March 31, 2009Assignee: The Clorox CompanyInventors: David R. Scheuing, Mona Marie Knock, Michael H. Robbins
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Patent number: 7507697Abstract: A method for cleaning the surfaces of food processing equipment that are heavily soiled with food processing byproducts, such as grease, starch and proteinaceous materials. The cleaning method consists of applying two separate aqueous cleaning solutions that are mixed together. One solution contains an aqueous oxidizing agent and the other solution contains a source of aqueous hydroxide ions. Both solutions are mixed together immediately prior to being applied to the soiled surfaces. The combined formulation utilizes the weak Bronsted acidity of the oxidizing agents in interaction with the hydroxide ions to generate perhydroxyl ions and other active oxygen species, which are significantly more effective at cleaning heavily soiled food processing equipment than each cleaning solution alone.Type: GrantFiled: October 30, 2007Date of Patent: March 24, 2009Assignee: Rochester Midland CorporationInventors: Joel Terry Shertok, Jack David Fox
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Publication number: 20090056349Abstract: Disclosed herein are 3,3,4,4,5,5,6,6,6-nonafluoro-1-hexene compositions for use in refrigeration and air conditioning systems, particularly in centrifugal compressor systems. Also disclosed are 3,3,4,4,5,5,6,6,6-nonafluoro-1-hexene in combination with at least one bromofluorocarbon, ketones, alcohols, chlorocarbons, ethers, esters, 4-chloro-1,1,2,3,3,4-hexafluorobutene, N-(difluoromethyl)-N,N-dimethylamine, or mixtures thereof, which are azeotropic or near azeotropic.Type: ApplicationFiled: November 3, 2008Publication date: March 5, 2009Inventors: Mario Joseph Nappa, Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
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Patent number: 7498296Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: February 28, 2007Date of Patent: March 3, 2009Assignee: E. I. DuPont de Nemours and CompanyInventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
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Patent number: 7494603Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: February 28, 2007Date of Patent: February 24, 2009Assignee: E. I. Du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Patent number: 7494966Abstract: A description is given of an alkanol-free alkoxylate of the general formula (I) CnH2n+1O(A)x(B)yR??(I) where R is C1-6 alkyl or benzyl A is ethyleneoxy B is C3-6 alkyleneoxy or mixtures thereof, it being possible for groups A and B to be in random distribution, in alternation or in the form of two or more blocks in any order, n is an integer in the range from 4 to 8 x is a number in the range from 0 to 25 y is a number in the range from 0 to 10 and x+y is at least 3.Type: GrantFiled: September 6, 2004Date of Patent: February 24, 2009Assignee: BASF AktiengesellschaftInventors: Ralf Noerenberg, Ulrich Annen