Oils, Grease, Tar, Or Wax Removal, By Dissolving Patents (Class 134/40)
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Patent number: 6566316Abstract: A composition for removing ink, paint, and other coatings that is substantially non-toxic, non-caustic, non-volatile, biodegradable, meets regulation standards, and has a low disposal cost. The composition comprises an alcohol in an amount from about 5% to about 60% by volume; a terpene containing liquid in an amount from about 5% to about 60% by volume; a sufficient amount of mixing agent for mixing the terpene containing liquid in water; and water.Type: GrantFiled: May 8, 2001Date of Patent: May 20, 2003Inventors: William Nicholas Hiatt, Shannon Dale Eckel
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Patent number: 6561200Abstract: The invention relates to a method for generating a foam from a liquid phase and a gas phase, a method for placing a foam in circulation in an installation, and a method for cleaning an installation by placing a foam in circulation. Generation of the foam is made by aspiration of an appropriate liquid phase and an appropriate gas phase to generate a foam through a porous lining. The invention also relates to a system for generating a foam and to a system for generating and placing a foam in circulation in an installation.Type: GrantFiled: July 13, 2000Date of Patent: May 13, 2003Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des MatieresInventors: Bruno Fournel, Maria Faury, Jean-Marie Le Samedy
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Patent number: 6562142Abstract: The present invention relates to a system and method for cleaning and/or treating a surface, preferably surfaces such as ceramic, steel, plastic, glass and/or painted surfaces such as the exterior surface of a vehicle. The system and method utilize a cleaning composition that contains at least one water-soluble or water dispersible copolymer. The method may also include a step of applying to the surface a treating composition which contains non-photoactive nanoparticles.Type: GrantFiled: October 5, 2001Date of Patent: May 13, 2003Assignee: The Procter & Gamble CompanyInventors: Bruce Barger, Thomas Geroge Crowe, Robert Henry Rohrbaugh, Alan Scott Goldstein, Michael Ray McDonald, Helen Frances O'Connor, Morgan Thomas Leahy
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Patent number: 6558879Abstract: A stripping and cleaning composition for the removal of residue from metal and dielectric surfaces in the manufacture of semi-conductors and microcircuits. The composition is an aqueous system including organic polar solvents including corrosive inhibitor component from a select group of aromatic carboxylic acids used in effective inhibiting amounts. A method in accordance with this invention for the removal of residues from metal and dielectric surfaces comprises the steps of contacting the metal or dielectric surface with the above inhibited compositions for a time sufficient to remove the residues.Type: GrantFiled: September 25, 2000Date of Patent: May 6, 2003Assignee: Ashland Inc.Inventors: Darryl W. Peters, Floyd L. Riddle
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Patent number: 6557568Abstract: Basic cleaning compositions using toxicologically-acceptable ingredients for cleaning fruits and vegetables are provided. Liquid formulations comprising detergent surfactant, such as oleate, alcohol ethoxylates, etc., and neutralized phosphoric acid are sprayed onto apples, lettuce and the like to remove soil and unwanted deposits, especially wax. Articles for applying the compositions to produce by spraying are disclosed. Use of the compositions for disinfectancy/sanitization of produce and cleaning/disinfectancy/sanitization of non-food inantimate surfaces are disclosed.Type: GrantFiled: June 27, 1995Date of Patent: May 6, 2003Assignee: The Procter & Gamble CompanyInventors: Bruce Prentiss Murch, Brian Joseph Roselle, Kyle David Jones, Keith Homer Baker, Thomas Edward Ward, Toan Trinh
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Patent number: 6554007Abstract: An improved composition and method for cleaning and disinfecting a garbage disposal that does not require aerosol propellants or carbon dioxide gas generating reaction systems. The composition comprises a suds stabilizing surfactant and a disinfecting agent, plus other optional ingredients such as additional detergent surfactant and scouring agents. In the method of cleaning and disinfecting, a flow of water is provided to the garbage disposal and the composition is then added while the garbage disposal is turned on. The mechanical action of the garbage disposal grinder blades rapidly mixes the composition with water to create suds and disperse the suds around the entire interior chamber, thus cleansing and disinfecting the garbage disposal. After the suds are generated, the flow of water is discontinued, with the garbage disposal being turned off within about 1 minute after the flow of water is discontinued.Type: GrantFiled: January 25, 2001Date of Patent: April 29, 2003Inventor: William S. Wise
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Patent number: 6554869Abstract: A polymer for use in a composition or method of laundry treatment is a copolymer of: (a) one or more anionic monomer units; (b) one or more cationic monomer units; and (c) optionally, one or more uncharged monomer units; wherein, the number ratio of the total of all negative charges on the anionic monomer unit(s) to the total of all positive charges on the cationic monomer unit(s) is from 10:1 to 3:1, especially from 17:3 to 3:1.Type: GrantFiled: February 2, 2001Date of Patent: April 29, 2003Assignee: Unilever Home & Personal Care USA, a division of Conopco, Inc.Inventors: Eric Aubay, Wilfried Blokzijl, Cedric Geffroy, Khalid Mahmood, Laurence Griffith Thompson, John Michael Walsh, Kenneth Wong, Dominic Yeung
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Patent number: 6551985Abstract: A liquid acidic composition having a sulfamic acid, a second acid, and an acid-stable polymer selected from the group consisting of a sulphonated polystyrene polymer, a vinylpyrrolidone homopolymer or copolymer, and mixtures thereof, to remove limescale-containing stains from a hard-surface.Type: GrantFiled: August 17, 2000Date of Patent: April 22, 2003Assignee: The Procter & Gamble CompanyInventors: Giulia Ottavia Bianchetti, Elisabetta L. Russo, Luigi Pace
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Patent number: 6550552Abstract: Oil drill cuttings, containing an oil-based mud, may be treated by mixing the cuttings with an organic solvent. The oil drill cuttings are then separated from the organic solvent and extracted oil. The organic solvent is then separated from the oil, and mixed with the extracted oil drill cuttings to extract additional oil therefrom. The oil drill cuttings are again separated from the organic solvent and oil, the oil separated from the solvent, and recombined with the oil from the first extraction step. The oil base and other mud components are recycled, depending on the treatment procedure, for subsequent use in drilling.Type: GrantFiled: September 7, 2000Date of Patent: April 22, 2003Assignee: EniTechnologie S.p.A.Inventors: Rosario Pappa, Umberto Cova, Raffaello Sisto, Armando Marcotullio, Antonella Carpentieri
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Patent number: 6548471Abstract: A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.Type: GrantFiled: December 20, 2001Date of Patent: April 15, 2003Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, George G. I. Moore
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Patent number: 6548468Abstract: An aqueous based cleaner containing at least inorganic alkalinizing agents and surfactants is capable of removing long dried paint and thick carbonaceous deposits from used aircraft engines, sometimes without using organic solvents at all and always without using more than a few % of such solvent, thereby greatly reducing pollution potential from this difficult cleaning operation. A preferred cleaner also includes a hydrotroping agent, and the cleaner may also contain corrosion inhibitor, sequestering agent for hard water cations, and other materials.Type: GrantFiled: November 3, 2000Date of Patent: April 15, 2003Assignee: Henkel CorporationInventors: Mervet S. Boulos, Craig S. Caldwell
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Patent number: 6547886Abstract: A steel strip is degreased with low power consumption by subjecting the steel strip to electrolytic washing in a degreasing apparatus including an electrolytic washing apparatus in which electrodes confront each other across the steel strip located therebetween, and charge density and current density are maintained within a predetermined range. There is also provided a simple steel strip degreasing apparatus which is especially suitable for the method.Type: GrantFiled: June 9, 2000Date of Patent: April 15, 2003Assignees: Kawasaki Steel Corporation, Hotani Co., Ltd.Inventors: Kazuya Nishizato, Seiichi Takahashi, Hidetoshi Takeda, Setsuo Hotani
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Patent number: 6544348Abstract: A process is proposed for cleaning printing machines or printing plates by removing the contaminants from the surfaces to be cleaned by washing them with a microemulsion comprising water, a surfactant, and a water-immiscible organic solvent.Type: GrantFiled: November 29, 2000Date of Patent: April 8, 2003Assignee: BASF AktiengesellschaftInventors: Dieter Stöckigt, Günter Oetter, Erwin Wolff, Erich Frank, Petra Schneider
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Patent number: 6539954Abstract: The invention relates to a liquid to paste machine dishwashing detergent which, in addition to customary machine dishwashing detergent ingredients, comprises a crystalline, layered silicate of the formula aA2O.bBO.cC2O3.dD2O5.eSiO2.fH2O, in which A is an alkali metal and/or hydrogen, B is an alkaline earth metal, C is an element from the third main group of the Periodic Table, and D is an element from the fifth main group of the Periodic Table, and the following also apply: 0≦a≦1; 0≦b≦0.5; 0≦c/e≦0.05; 0≦d/e≦0.25; 1.9≦e≦4; 0≦f≦20. The invention also relates to a process for the preparation of this machine dishwashing detergent and to its use.Type: GrantFiled: November 24, 1999Date of Patent: April 1, 2003Assignee: Clariant GmbHInventors: Günther Schimmel, Lothar Westermann, Harald Bauer
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Patent number: 6537384Abstract: A composition and method for cleaning gas turbine engines to remove fuel or lubricant residues. The composition can include a mixture of hydrofluorocarbon and hydrofluoroether. The method can include the step of directing a pressurized stream of the cleaning composition against one or more portions of the gas turbine engine to remove fuel and/or lubricant residues.Type: GrantFiled: February 6, 2001Date of Patent: March 25, 2003Assignee: General Electric CompanyInventors: Mark Guenter Herwig, Mark Joseph Rechtsteiner, Roy Fred Thornton, Bruce Edward Goodwin
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Patent number: 6533873Abstract: A shower gel formulation having a clear appearance is described which suspends insoluble particles, water insoluble liquids or bubbles and contains an acrylate copolymer, an anionic surfactant, a cationic polymer and, optionally, an amphoteric surfactant. The method of use of the clear shower gel is also described.Type: GrantFiled: August 1, 2000Date of Patent: March 18, 2003Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.Inventors: Marion Louise Margosiak, Michael Alan Rahn, Rosa Paredes
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Patent number: 6532973Abstract: A cleaning composition containing: (A) an alkyl polyglycoside corresponding to formula I: R1O(R2O)b(Z)a I wherein R1 is a monovalent organic radical having from about 6 to about 30 carbon atoms; R2 is a divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number having a value from 1 to about 6; and (B) at least one product of a reaction between: a) at least one linking agent of formula IV: R4(Y)3 (IV) wherein each Y group is a halogen atom or one Y group is a halogen atom and two Y groups with two adjacent carbon atoms in the R4 group and an oxygen atom form an epoxy group, and R4 is an alkanetriyl group containing from 3 to 10 carbon atoms; and (b) at least one compound of formula (II) R3(EO)n(PO)m(BO)pX (II) wherein R3 is a substituted or unsubstituted saturated or unsaturated, aliphatic oxy or thio group having from 1 to about 36 carbonType: GrantFiled: May 25, 2000Date of Patent: March 18, 2003Assignee: Cognis CorporationInventors: Stephen F. Gross, Timothy C. Morris, Michael S. Wiggins, Robert J. Valesky
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Patent number: 6530383Abstract: The invention relates to an aqueous agent which is provided for cleaning hard surfaces and which comprises a pH value of greater than 7. The inventive agent comprises: A) 5 to 45 wt. % of at least one polymer which is soluble in the alkaline medium, which is not cross-linked by metal ions, and which has a temperature of film formation ranging from 0 and 80° C.; and B) 2 to 90 wt.Type: GrantFiled: October 2, 2001Date of Patent: March 11, 2003Assignee: Ecolab GmbH & Co. OHGInventors: Karl-Heinz Rogmann, Birgit Skodell, Heiko Faubel
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Publication number: 20030045439Abstract: The present invention relates to a process of cleaning a hard surface with a liquid neutral to alkali composition comprising a polymer and a surfactant system wherein said surfactant system comprises a sulphated or sulphonated anionic surfactant, a neutralizing co-surfactant and an alkoxylated nonionic surfactant.Type: ApplicationFiled: August 26, 2002Publication date: March 6, 2003Inventor: Marc Francois Theophile Evers
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Publication number: 20030037807Abstract: A washing method of petroleum equipment using washing solution capable of being used in a waterless environment is provided. A compound of surface-active agent and oil is used as the washing solution of the petroleum equipment. Content of the surface-active agent in the compound is preferably 1 to 20 volume %. The surface-active agent is preferably selected from the group consisting of anionic surface-active agent, cationic surface-active agent, amphoteric surface-active agent and nonionic surface-active agent. The oil is preferably at least one selected from the group consisting of kerosene, light gas oil, vacuum gas oil and light cycle oil fraction obtained from a fluid catalystic cracking unit.Type: ApplicationFiled: October 11, 2002Publication date: February 27, 2003Applicant: Softard Industries Co., Ltd.Inventors: Katshuiko Kawakami, Hirozumi Hosokawa
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Patent number: 6524393Abstract: A method of absorbing oil or wax by contacting the oil or wax with a non-woven, woven, or knitted fabric prepared from a polyvinyl alcohol fiber. A method of recovering oil or wax contained in such a fabric using water and at a rate surprisingly faster than the rate of oil or wax recovery from cotton. A method of absorbing oil or wax from a mixture of oil or wax and sand by contacting the mixture with a fabric made from polyvinyl alcohol. Method of disposing of such fabrics which have been soiled or saturated with the oil or wax. The method is also applicable to other hydrocarbons such as aliphatic or aromatic hydrocarbon solvents.Type: GrantFiled: November 1, 2000Date of Patent: February 25, 2003Assignee: Isolyser Company, Inc.Inventors: Travis W. Honeycutt, Baosheng Lee, Nigel J. Flynn, Feng Qin
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Patent number: 6524392Abstract: Cleaning compositions which, as powder or as aqueous formulation based on sodium bicarbonate, sodium chloride and/or sugar, comprise a water-soluble polymeric polycarboxylate as dispersant with the exception of those formulations containing only sodium bicarbonate and polyaspartic acids and/or their salts, to the use of these cleaning compositions for the abrasive cleaning of hard surfaces. A method for cleaning surfaces contaminated with deposits using these cleaning compositions.Type: GrantFiled: March 14, 2000Date of Patent: February 25, 2003Assignee: Bayer AktiengesellschaftInventors: Hans-Joachim Traenckner, Hartwig Wendt, Thomas Menzel
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Patent number: 6518234Abstract: A process for the production of detergent particles, comprises feeding an acid precursor of an anionic surfactant and a neutralising agent into a horizontal thin-film evaporator/drier comprising a mixing region, a drying region and a cooling region. The resultant detergent particles are graded to separate an oversize granule fraction in which at least 70 wt % of the particles have a minimum diameter of 1000 &mgr;m. This fraction is fed back into the process.Type: GrantFiled: September 20, 2001Date of Patent: February 11, 2003Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.Inventors: William Derek Emery, Andreas Theodorus Groot
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Patent number: 6511546Abstract: A process for the use of an aqueous cleaning composition to remove organic material from a substrate. The cleaning composition preferably includes a nonionic surfactant and may also include a glycol ether solvent.Type: GrantFiled: November 24, 1999Date of Patent: January 28, 2003Assignee: Petroferm Inc.Inventors: Elizabeth A. Bivins, Nelson E. Prieto, Michael E. Hayes, Byron A. Starkweather
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Patent number: 6508887Abstract: A resist removing composition has an excellent capability for removing a resist, polymer, organometallic polymer and metal oxide and which does not attack underlying layers, and a resist removing method using the same. The resist removing composition includes alkoxy N-hydroxyalkyl alkanamide, at least one selected from the group consisting of alkanolamine, a polar material having a dipole moment of 3 or greater and an attack inhibitor, and hydrogen peroxide or at least one of a fluoride-based reducing agent and a hydroxide-based reducing agent.Type: GrantFiled: November 21, 2000Date of Patent: January 21, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-jin Park, June-ing Gil, Je-eung Park, Sang-mun Chon
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Patent number: 6509309Abstract: A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.Type: GrantFiled: March 12, 2002Date of Patent: January 21, 2003Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, George G. I. Moore, John G. Owens
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Patent number: 6506262Abstract: The present invention may include a cleanser having a liposome and greater than about 40 weight percent of a solvent. The liposome may be loaded with the solvent more than about 7 days after the manufacture of the liposome. The solvent may be an isoprenoid or ester solvent. Furthermore, the solvent may be d-limonene or a dibasic ester. In addition, the liposome may be selected from the group consisting of large unilamellar vesicles, multilamellar vesicles, paucilamellar vesicles, and small unilamellar vesicles. Desirably, the liposome is a paucilamellar vesicle. Desirably, the cleanser may have a solvent weight percent greater than about 60. More desirably, the cleanser may have a weight percent of solvent greater than about 80. Moreover, the solvent is about a 1:1 weight ratio of d-limonene and dibasic ester.Type: GrantFiled: November 29, 2000Date of Patent: January 14, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Kelly Michael Strout, Peter Maddern
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Patent number: 6506459Abstract: A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.Type: GrantFiled: December 20, 2001Date of Patent: January 14, 2003Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens
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Patent number: 6503337Abstract: A method for chemically removing hydrocarbons from oil contaminated material is described. The method comprises contacting the material containing the oil with a combinations of surfactants in an oil carrier similar to or identical to the oil to be removed. This process avoids the use of water. Therefore the process does not compromise the quality of the oil by having water as a contaminant and thus eliminating the possibility of oil contaminated water getting into the environment. In certain examples, when the process is used to remove oil from land based well bore cuttings, the processed well bore cuttings contain high levels of chlorides, which is an environmental problem. In such examples the method also includes contacting the well bore cuttings with a solution of dioctyl sodium sulfosuccinate in water to reduce the chloride concentration. An apparatus designed for this purpose is also described.Type: GrantFiled: December 13, 1999Date of Patent: January 7, 2003Assignee: BGR Oilfield Services, Inc.Inventor: Brian G. Roberts
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Patent number: 6503874Abstract: This invention provides a method for removing flux residue and similar other residues formed on the surfaces of micro electronic components during soldering operations using solder paste and fluxing agents in electronic module assembly component fabrication by a semi-aqueous solvent cleaning process using propylene glycol alkyl ether solvents, preferably the mono alkyl ethers, as replacements for xylene. The electronic components may contain plastic components, for example, a plastic grid array (PBGA) in addition to silicon device chip(s), C4 decaps and SMTs on a ceramic chip carrier with solder columns. Preferred solvents are dipropylene glycol mono methyl ether and tripropylene glycol mono methyl ether, which are both water soluble.Type: GrantFiled: January 16, 2001Date of Patent: January 7, 2003Assignee: International Business Machines CorporationInventors: Krishna G. Sachdev, Chon C. Lei
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Patent number: 6503334Abstract: The present invention is directed to methods for cleaning films and particulates from the compressor section and combustion contaminants from the combustion and turbine sections of a combustion turbine. Particulate films and contaminants adhering to the internal components of the compressor section of a turbine are readily removed by forcing a mist comprising a cleaning solution such as an aqueous surfactant solution through the compressor section. Contaminants resulting from fuel combustion and deposited in the combustion and turbine sections are removed by forcing a mist comprising a second cleaning solution through those sections. The second solution typically comprises an aqueous acid solution optionally including a corrosion inhibitor. The compressor section must be isolated from such acid solutions, e.g. by continuing to force the misted surfactant solution through the compressor section prior to and simultaneously with forcing the misted acid solution through the combustion section.Type: GrantFiled: March 14, 2001Date of Patent: January 7, 2003Assignee: HydroChem Industrial Services, Inc.Inventors: R. Dwane Ruiz, Charles D. Foster
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Publication number: 20030004081Abstract: A composition and method for the removal of scale from a substrate are disclosed. The composition and method are more specifically utilized for the in situ removal of silicate-containing scale from interior surfaces of boilers and other heat exchange equipment. The silicate-containing scale is deposited in the boilers as silicate-sulfate complexes of calcium, magnesium, aluminum, and other metal atoms that are present in water. The composition, which is circulated throughout the boiler to contact the interior surfaces, such as the boiler tubes, includes a chelating agent having at least two carboxylic acid functional groups, preferably citric acid. The composition also includes an alkali metal hydroxide basic agent. The preferred alkali metal hydroxides are either potassium or sodium hydroxide. The basic agent establishes an overall basic pH of from 7 to 14 in the composition to enable precipitation of the metal atoms from the composition after interaction with the chelating agent.Type: ApplicationFiled: May 24, 2001Publication date: January 2, 2003Inventors: Gary D. Ellis, Matthew T. Lusher
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Publication number: 20030000552Abstract: A system and process for removing oil containing machine coolant from machining chips in which the chips are deposited in a sluice and flushing jets of citrus oil based cleanser containing water solution used as a washing liquid are used to move the chips down the sluice and into a chip separator tank, the coating of machining fluid scoured from the chips by the action of the flushing jets. The chips are conveyed up a sloping wall of the tank to be moved out of the washing liquid, drained and dried. The washing liquid is pumped out the tank and used to form the flushing jets in the sluice.Type: ApplicationFiled: June 29, 2001Publication date: January 2, 2003Inventor: Jack R. Bratten
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Patent number: 6485578Abstract: Disclosed is a chemical cleaning process for removing fouling from process lines of oil refining or petrochemical plants. The process lines are in an on-line state and a chemical cleaning agent is circulated through the process lines to remove the fouling. It can effectively recover the thermal efficiency in oil refining processes or petrochemical processes within a short period of time, so that significant energy consumption is reduced. Furthermore, the chemical cleaning process requires a shorter cleaning period and therefore allows for a longer operating time. It can also dislodge fouling without opening heat exchangers or other equipment thereby preventing the release of VOCs. As a result, environmental pollution is not generated. The present invention is also ecconomically favorable as it extends the time between periodic maintenance.Type: GrantFiled: July 6, 2000Date of Patent: November 26, 2002Assignee: SK CorporationInventors: Sam-Ryong Park, Young-Kyoung Ahn, Sung-Gu Oh, Ki-Hyun Lee, Sung-Joong Kim
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Patent number: 6478033Abstract: The present invention is directed to methods for cleaning films and particulates from the compressor section and combustion contaminants from the combustion and turbine sections of a combustion turbine. Particulate films and contaminants adhering to the internal components of the compressor section of a turbine are readily removed by pumping a foamed cleaning solution such as a foamed, aqueous surfactant solution through the compressor section. Contaminants resulting from fuel combustion and deposited in the combustion and turbine sections are removed by pumping a second, foamed cleaning solution through those sections. The second solution typically comprises a foamed, aqueous acid solution optionally including a corrosion inhibitor. The compressor section must be isolated from such acid solutions, e.g. by pumping the foamed surfactant solution through the compressor section prior to and simultaneously with pumping the foamed acid solution through the combustion section.Type: GrantFiled: May 26, 2000Date of Patent: November 12, 2002Assignee: HydroChem Industrial Services, Inc.Inventor: Charles D. Foster
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Patent number: 6478880Abstract: Multi-component compositions comprising as a first component a fluorinated compound, as a second component a fluorinated aromatic compound and a third component comprising an alkane are disclosed. These compositions can be formulated to provide single phase systems which serve as effective solvents for fluorinated oils as well as petroleum oils. The compositions can serve as solvent cleaners or can be combined directly with oils to provide a delivery system for the oil.Type: GrantFiled: March 26, 2001Date of Patent: November 12, 2002Assignee: Henkel Loctite CorporationInventor: Gary K. Shank
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Patent number: 6479453Abstract: An alkaline cleaner composition comprising an alkyl or alkylaryl ethoxy carboxylate, a strong chelating agent and a source of alkalinity, its manufacture and use in removing greasy soil from hard surface areas is described. The compositions are especially effective in removing lime-soaps in such greasy soil especially on institutional and commercial kitchen floors.Type: GrantFiled: June 1, 2001Date of Patent: November 12, 2002Assignee: Ecolab Inc.Inventor: Victor Fuk-Pong Man
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Patent number: 6478881Abstract: The present invention is based on the unexpected finding that the combination of a carboxylate containing anionic polymer, of molecular weight greater than about 1000 daltons, with cleaning agents, provides improved contact lens cleaning preparations. The present invention includes contacting a soiled contact lens with an aqueous solution comprising an anionically charged polymer and a surfactant or surfactant combination selected from the classes of nonionic surfactants, anionic surfactants, and amphoteric surfactants.Type: GrantFiled: February 28, 2001Date of Patent: November 12, 2002Assignee: Vista Scientific L.L.C.Inventors: Jeanne Y. Ellis, Edward J. Ellis
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Patent number: 6479452Abstract: A surfactant composition containing: (a) from about 75 to 97% by weight of an alkyl sulfate; and (b) from about 3 to 25% by weight of an alkenyl sulfate, all weights being based on the weight of the composition, and wherein the surfactant composition is in granular form.Type: GrantFiled: June 29, 2001Date of Patent: November 12, 2002Assignee: Cognis Deutschland GmbH & Co. KGInventors: Manfred Weuthen, Ditmar Kischkel
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Patent number: 6475296Abstract: The present invention relates to a degreasing composition, to a liquid, to a gel and to a degreasing foam which comprise said composition. The composition according to the invention comprises a base, a polyethoxylated fatty alcohol, saturated or unsaturated, a copolymer of ethylene oxide and propylene oxide, and water. The invention also relates to a degreasing and/or decontamination process of a surface using said composition, said liquid, said gel, and/or said degreasing foam.Type: GrantFiled: January 25, 2001Date of Patent: November 5, 2002Assignees: Electricite de France, Commissariat A l'Energie Atomique, Compagnie Generale des Matieres NucleairesInventors: Jean-Paul Gauchon, Jacques Delagrange, Maria Faury, Bruno Fournel
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Patent number: 6472357Abstract: An electronic parts cleaning solution comprising a hydroxide, water, metal corrosion inhibitor, and at least one compound represented by the following general formula (I) or (II): HO—((EO)x-(PO)y)z-H (I) wherein, EO represents an oxyethylene group, PO represents an oxypropylene group, x and y represent integers satisfying the relation: x/(x+y)=0.05 to 0.4, and z represents a positive integer, R—[((EO)x-(PO)y)z-H]m (II) wherein, EO, PO, x, y and z are the same as in the general formula (I), R represents a residual group obtained by removing a hydrogen atom on a hydroxyl group of alcohol or amine having a hydroxyl group, or a residual group obtained by removing a hydrogen atom on an amino group of amine, and m represents an integer of 1 or more.Type: GrantFiled: February 2, 2001Date of Patent: October 29, 2002Assignee: Sumitomo Chemical Company, LimitedInventor: Masayuki Takashima
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Publication number: 20020153030Abstract: An endpoint detection system for copper stripping using a colorimetric analysis of the change in concentration of a component is described, Wet copper stripping chemicals are used to strip copper from a wafer whereby an eluent is produced. The eluent is continuously analyzed by colorimetric analysis for the presence of copper. The copper stripping process is stopped when the presence of copper is no longer detected. Also novel compounds or chemicals for use in an endpoint detection system for copper stripping using a colorimetric analysis of the change in concentration of the novel compounds or chemicals are described. A composition of matter that serves as an indicator of the presence of copper by colorimetric analysis comprises: 1) Fast Sulphon Black F indicator and an ammonium ion-containing solution or 2) a complexing agent, comprising a diamine, an amine macrocycle, or a monoamine.Type: ApplicationFiled: June 11, 2002Publication date: October 24, 2002Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.Inventors: Simon Chooi, Mei Sheng Zhou
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Patent number: 6468956Abstract: Compositions containing a &agr;-sulfofatty acid ester and a hydrotrope. The &agr;-sulfofatty acid ester and the hydrotrope reduce the pH drift in the composition and solubilize the &agr;-sulfofatty acid ester in solution. Methods are also disclosed for making such compositions.Type: GrantFiled: May 24, 2000Date of Patent: October 22, 2002Assignee: Huish Detergents, Inc.Inventors: Paul Danton Huish, Laurie A. Jensen, Pule B. Libe
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Patent number: 6468359Abstract: The invention relates to a method for cleaning a metallic or an enameled surface comprising flooding a metallic surface contaminated with deposits with a mixture comprising (i) water, (ii) chippings of woods selected from the group consisting of merantis, bongossis, mahoganies, sipos, khayas, lauans, and sapellis, and (iii) a member selected from the group consisting of polyaspartic acid, salts of polyaspartic acid, and polysuccinimide, and thereby cleaning the surface.Type: GrantFiled: March 16, 2001Date of Patent: October 22, 2002Assignee: Bayer AktiengesellschaftInventors: Manfred Gerlach, Bernhard Lehmann
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Patent number: 6465405Abstract: The present invention is directed to a paint stripping composition comprising (a) from about 0.5 to about 50% by weight of an aromatic alcohol, such as benzyl alcohol; (b) from about 0.5 to about 20% by weight of malic acid; and (c) from about 15 to about 60% by weight of water. The pH of the composition broadly ranges from about 2 to about 3. The stripping composition of the present invention is free of chlorinated solvents, environmentally safe, and user-friendly. It is non-corrosive or only slightly corrosive to substrates, non-flammable, non-toxic, flow odor, and fully biodegradable. A method of preparing the paint stripping composition is also provided.Type: GrantFiled: August 11, 2000Date of Patent: October 15, 2002Assignee: Napier Environmental Technologies, Inc.Inventor: Sergio Vitomir
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Patent number: 6461440Abstract: An article having a metallic surface treated with polymeric complexing agent is described. Particularly suitable polymeric complexing agents are phosphonoalkylated polyethyleneimines and/or carboxyalkylated polyethyleneimines and/or vinylimidazole polymers. As a rule, the treated metallic surface forms the total inner surface or a part of the inner surface of a process apparatus or of a container. The surface is protected by the treatment, in particular from the adhesion of polymer.Type: GrantFiled: March 31, 2000Date of Patent: October 8, 2002Assignee: BASF AktiengesellschaftInventors: Heinz Friedrich Sutoris, Gerhard Wagenblast, Jürgen Schröder, Harald Keller, Rainer Rahm, Jürgen Decker, Thomas Jaworek, Volker Schliephake
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Publication number: 20020139392Abstract: Powdered compositions comprising in admixture inorganic salts and silica gel, and optionally a fragrance additive, are disclosed. The novel compositions are useful in absorbing and deodorizing liquid waste and for removing such waste from irregular surfaces, such as textiles and carpeting, as well as from smooth hard surfaces. The compositions are effective in absorbing liquid biohazards, such as blood, vomit, urine, and other body fluids. For this application, a halogen-containing compound, such as sodium hypochlorite or calcium hypochlorite is preferably included in the composition. The mixtures can also be utilized for the absorption of oil-based spills and hydrocarbons and are also effective in removing moisture and malodors associated with pet urine and other moisture-related stains encountered in the home. When applied to liquid wastes, the absorbent properties of the compositions contain the spill, creating a solid cohesive matrix that allows for easy disposal.Type: ApplicationFiled: March 15, 2002Publication date: October 3, 2002Inventors: Ronald N. Cervero, Matthew W. Gower
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Publication number: 20020129840Abstract: Disclosed is a composition of about 20 to about 80 wt % benzotrifluoride and about 20 to about 80 wt % trichloroethylene. Up to about 1 wt % of a stabilizer for the trichloroethylene can be included in the composition.Type: ApplicationFiled: February 13, 2002Publication date: September 19, 2002Applicant: EMERALD AGROCHEMICALS COMPANY AVVInventors: Hang-Chang Bobby Chen, Edward A. Rowe
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Patent number: 6450182Abstract: The present invention cleans contaminants from pipes. The first step may be pulling a vacuum on the pipe to be cleaned. The pipe is then filled with a solvent, which is preferably a fluorocarbon solvent. After the pipe is filled with solvent, a cleaning solution is pumped at a high velocity through the pipe. The cleaning solution preferably comprises the fluorocarbon solvent, and a fluorosurfactant. The pipe is then rinsed with solvent. A particle counter is used to determine whether the solvent rinse contains an acceptably low number of particles. The solvent is then blown out of the pipe by a gas, such as dry air. A vacuum is then pulled on the pipe. Subsequently, a hot dry gas is pumped through the pipe to evaporate and remove any remaining solvent. The gas is preferably hot, dry air. The gas exiting from the pipe is then checked to confirm that it contains an acceptably low level of solvent vapor.Type: GrantFiled: April 10, 2001Date of Patent: September 17, 2002Assignee: Versar, Inc.Inventors: Gregory M. Fillipi, Bobby E. Walls, Kenneth Magerus, Jerry L. Gore
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Patent number: 6451064Abstract: Liquid multipurpose cleaning compositions comprising a peroxygen bleach, a surfactant that exhibits a foaming property in the presence of a peroxygen bleach and a foam reducing system and processes for using same are provided.Type: GrantFiled: June 19, 2000Date of Patent: September 17, 2002Assignee: Procter & GambleInventors: Valerio Del Duca, Carlo Ricci, Carla Scorsini