Oils, Grease, Tar, Or Wax Removal, By Dissolving Patents (Class 134/40)
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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
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Patent number: 6440226Abstract: Provided is a system for parts washing that includes a fluid that performs a cleaning function and maintains the viability of microorganisms in the fluid that biodegrade the organic matter removed from the parts. “Parts” include objects such as automotive parts befouled with organic matter and particulate matter. The cleaning fluid includes a surfactant that functions to separate organic waste from the parts being washed. The cleaning fluid is both in a cleaning area and in a housing for microorganisms. A heater, thermostat, and a level control assembly function to maintain the cleaning fluid within a certain temperature range so as to maintain a proper environment for the microorganisms. The fluid recirculates from the microorganism housing to the parts cleaning area.Type: GrantFiled: August 8, 2001Date of Patent: August 27, 2002Assignees: Zyma International, Inc., ChemFree CorporationInventors: James C. McClure, J. Leland Strange, Thomas W. McNally, Francis A. Marks
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Patent number: 6440914Abstract: The invention concerns a liquid de-inking composition comprising at least a surfactant of polyalkoxylated terpenic origin of formula: Z—X—W—[CH—(R5)CH(R6)-O]q—A wherein: Z is a bicycloheptenyl or bicycloheptyl radical, preferably substituted by methyl radicals; X is preferably a —CH2—CH2—O— or —O—CH2—CH2—O— radical; W is a polysequence, preferably polyoxypropylene and polyoxyethylne sequence; [CH(R5)—CH(R6)—O]q is a sequence different from a polyoxyethylene, preferably polyoxypropylene sequence; A is a hydrogen atom, a hydrocarbon or functional group. Said composition can be used for de-inking paper.Type: GrantFiled: March 29, 2001Date of Patent: August 27, 2002Assignee: Rhodia ChimieInventor: Marie-Odile Lafon
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Patent number: 6440225Abstract: A method is provided for stripping a polymer film from a floor surface, comprising the steps of: (a) applying a concentrated alkaline stripper solution including an alkaline agent and a solvent, to the polymer film; (b) allowing this concentrated alkaline solution to chemically act on the polymer film during a contact time of at least 5 seconds; (c) scrubbing the polymer film with a scrubbing device while diluting the concentrated alkaline solution with water, so as to obtain a sludge; (d) vacuum cleaning the floor surface by suction of the sludge, whereby this method is carried out using one floor treating machine. This method is an integrated floor stripping procedure which is considerably more effective than known stripping methods of the prior art.Type: GrantFiled: February 16, 2000Date of Patent: August 27, 2002Assignee: Diversey Lever, Inc.Inventors: Michael Van Den Burg, Josef Jans, Frederik Jan Schepers, Rolf Semmler, Pieter Van Der Vlist
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Patent number: 6432215Abstract: An improved method for removing and collecting plating wax from waxed components such as turbine engines components from aircraft, and an improved collector for reducing this method to practice. Collectors known in the art generally have 1) a process tank filled with a remover solution into which the waxed component is fully immersed and the wax is removed; 2) a wax separator tank connected to the process tank for receiving therefrom an overflow of remover solution and removed wax; and 3) a circulating pump for pumping the wax remover solution from the wax separator tank back to the process tank. The collector of the invention further has a level controller operating with microwaves for monitoring the level of remover solution in the wax separator tank and a chemical pump connected to and controlled by the level controller in order to maintain the level of wax remover solution in the wax separator tank close to a preset level by pumping a new batch of remover solution in the wax separator tank.Type: GrantFiled: November 12, 1999Date of Patent: August 13, 2002Assignee: Mag-Chem Inc.Inventors: Roger A. Gamache, Claude Perreault
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Patent number: 6432897Abstract: The invention provides an aqueous, hard surface cleaner with significantly improved residue removal and substantially reduced filming/streaking, and the cleaner comprises: (a) an effective amount of at least one organic solvent with a vapor pressure of at least 0.001 mm Hg at 25° C., and mixtures of such solvents; (b) an effective amount of either at least one anionic surfactant, or a mixture of anionic and nonionic surfactants; (c) an effective amount of a buffering system which comprises a nitrogenous buffer which will result in a pH of greater than 6.5; and (d) the remainder as substantially all water.Type: GrantFiled: June 5, 1997Date of Patent: August 13, 2002Assignee: The Clorox CompanyInventor: Elizabeth A. Cable
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Patent number: 6432899Abstract: Cleaning and deoxidizing aluminum surfaces can be accomplished simultaneously by contacting the surfaces with an aqueous liquid composition that contains as its cleaning active ingredients (i) alcohols and/or ether alcohols, (ii) alkaline builders, and (iii) alkali stable surfactants, and, optionally but preferably, also contains fluoride and chelating agents.Type: GrantFiled: July 13, 2000Date of Patent: August 13, 2002Assignee: Henkel CorporationInventor: Terry D. Sjostrom
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Publication number: 20020107167Abstract: An anionic surfactant powder prepared by subjecting a mixture of an anionic surfactant and a solvent to microwave irradiation to remove at least a part of the solvent, and a process for preparing the anionic surfactant. The anionic surfactant powder can be suitably used for laundry detergents, detergents for tableware and kitchenware, foaming agents for toothpastes, powdery shampoos, emulsifying agents for polymerization, foaming agents for cement plaster and the like.Type: ApplicationFiled: October 23, 2001Publication date: August 8, 2002Inventors: Kazunori Aizawa, Kazuhito Miyoshi, Osamu Tabata
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Patent number: 6429178Abstract: Phenate/salicylate overbased detergents with high proportions of phenate and salicylate surfactants in the surfactant system and with TBN; % surfactant ratios of 11 or more are useful marine diesel lubricant additives.Type: GrantFiled: November 9, 1998Date of Patent: August 6, 2002Assignee: Infineum USA L.P.Inventors: Philip Skinner, Alain Louis Pierre Lenack
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Patent number: 6429179Abstract: Phenate detergents and salicylate detergents with high TBNs and/or high TBN: % surfactant ratios are useful marine diesel lubricant additives.Type: GrantFiled: November 9, 1998Date of Patent: August 6, 2002Assignee: Infineum U.S.A. L.P.Inventors: Philip Skinner, Alain Louis Pierre Lenack
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Publication number: 20020091070Abstract: The present invention relates to an applicator for a fabric treatment composition and its application. More specifically the invention relates to a versatile, effective convenient to apply fabric treatment applicator and its method of application. Claimed and described is method for the application of a fabric treatment composition, which comprises bleach and which is left to evaporate after being applied to a fabric.Type: ApplicationFiled: January 8, 2002Publication date: July 11, 2002Applicant: The Procter & Gamble CompanyInventors: Gautier Engisch, David Roy Sandbach, Jean Wevers
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Patent number: 6417148Abstract: Phenate overbased detergents with high TBN: % surfactant ratios are useful lubricant additives.Type: GrantFiled: November 9, 1998Date of Patent: July 9, 2002Assignee: Infineum USA L.P.Inventors: Philip Skinner, Alain Louis Pierre Lenack
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Patent number: 6417153Abstract: The invention provides azeotrope-like compositions consisting essentially of RfCF(OC2H5)CF(CF3)2, where Rf is a straight chain perfluoroalkyl group having 3 carbon atoms, and an organic solvent selected from the group consisting of: (a) unsubstituted straight chain, branched chain, and cyclic saturated alkanes containing 8 to 11 carbon atoms; (b) chlorinated straight chain, branched chain, and cyclic saturated alkanes containing 5 to 7 carbon atoms; (c) aromatic or unsaturated cyclic halogenated or unhalogenated hydrocarbons containing 7 to 10 carbon atoms; (d) esters containing 6 carbon atoms; (e) ketones containing 6 to 7 carbon atoms; (f) glycol ethers containing 6 carbon atoms; and (g) siloxanes containing 8 carbon atoms.Type: GrantFiled: July 20, 2000Date of Patent: July 9, 2002Assignee: 3M Innovative Properties CompanyInventor: John G. Owens
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Patent number: 6413322Abstract: A machine for vapor degreasing with a atmosphere tight container for the process to take place, an inert gas purge to reduce the oxygen in the container, and a heat source to vaporize the decreasing fluid.Type: GrantFiled: July 28, 2000Date of Patent: July 2, 2002Inventor: Bernard E Kopaskie
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Patent number: 6407048Abstract: The present invention relates to a process of cleaning a carpet with a liquid composition comprising an anti-resoiling agent, said process comprising the steps of applying said composition to the surface of the carpet and leaving said composition to dry onto the carpet. The carpet cleaning composition according to the present invention provides carpet cleaning and/or carpet anti-resoiling henefits. The preferred anti-resoiling agent is poly(4-vinylpyridine-N-oxide).Type: GrantFiled: October 6, 2000Date of Patent: June 18, 2002Assignee: The Procter & Gamble CompanyInventors: Gabriella Grippaudo, Carlo Ricci, Luca Sarcinelli
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Publication number: 20020069901Abstract: 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: June 29, 2001Publication date: June 13, 2002Applicant: The Procter & Gamble CompanyInventor: Marc Francois Theophile Evers
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Publication number: 20020069900Abstract: The present invention relates to a process of cleaning a hard surface with a liquid acidic composition comprising a surfactant system, wherein said surfactant system comprises: a sulphated or sulphonated anionic surfactant; a neutralising co-surfactant; and a sulfobetaine and/or an alkoxylated nonionic surfactant.Type: ApplicationFiled: June 29, 2001Publication date: June 13, 2002Applicant: The Procter & Gamble CompanyInventor: Marc Francois Theophile Evers
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Patent number: 6402857Abstract: The invention provides a solvent mixture including n-propyl bromide, a mixture of low boiling solvents and, preferably, a defluxing and/or ionics removing additive and/or at least one saturated terpene. The invention also provides a method of cleaning an article (e.g., an electrical, plastic, or metal part) in a vapor degreaser using the solvent mixture. The solvent mixture of the invention is non-flammable, non-corrosive, and non-hazardous. In addition, it has a high solvency and a very low ozone depletion potential. Thus, using the solvent mixture of the invention, oil, grease, rosin flux, and other organic material can be readily removed from the article of interest in an environmentally safe manner.Type: GrantFiled: November 29, 2000Date of Patent: June 11, 2002Assignee: Lawrence Industries, Inc.Inventors: Lawrence A. Clark, James L. Priest
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Patent number: 6399555Abstract: An aqueous hard surface cleaner with improved soil removal is provided and has, as components, the following: (a) either an anionic, nonionic, amphoteric surfactant, and mixtures thereof with optionally, a quaternary ammonium surfactant, the total amount of the surfactants being present in a cleaning effective amount; (b) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0.001 mm Hg at 25° C., present in a solubilizing—or dispersion—effective amount (c) a combination of (i) an incompletely neutralized potassium ethylenediamine—tetraacetate (EDTA) and (ii) a precipitating co-builder as chelating agents present in an amount effective to enhance soil removal in said cleaner; and (d) the remainder, water.Type: GrantFiled: May 18, 2001Date of Patent: June 4, 2002Assignee: The Clorox CompanyInventors: Michael H. Robbins, Jennifer C. Julian, Suzanne M. Thompson, Gary L. Robinson, Clement K. Choy, Elizabeth A. Gossett
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Patent number: 6398874Abstract: A resist removing agent and a resist removing composition, having an excellent capability for removing a resist and polymer and which does not attack underlying layers, a method for preparing the same and a resist removing method using the same. The resist removing agent includes alkoxy N-hydroxyalkyl alkanamide. The resist removing composition includes alkoxy N-hydroxyalkyl alkanamide, and at least one compound selected from a group consisting of a polar material having a dipole moment of 3 or greater, an attack inhibitor and alkanolamine. A substrate having the resist thereon is brought into contact with the resist removing agent or resist removing composition to remove the resist.Type: GrantFiled: June 21, 2001Date of Patent: June 4, 2002Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-jin Park, Jin-ho Hwang, June-ing Gil, Je-eung Park, Sang-mun Chon
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Patent number: 6396023Abstract: The present invention provides a method for hermetically sealing a semiconductor laser element, by which the cleanness of a package can be maintained extremely satisfactorily in a stabilized state, in order to prevent organic substances from being adhered to the end faces of high output semiconductor laser elements due to photochemical actions. The method comprises the first step of introducing oxygen into a chamber of a hermetical-sealing apparatus and irradiating ultraviolet rays onto an unsealed package having a semiconductor laser element mounted, in the chamber, and the second step of purging the chamber with an inert gas and hermetically sealing an unsealed package in the inert gas atmosphere without being exposed to the outer atmosphere.Type: GrantFiled: October 26, 1999Date of Patent: May 28, 2002Assignee: The Furukawa Electric Co., Ltd.Inventor: Takeshi Aikiyo
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Patent number: 6395103Abstract: A composition useful as a paint remover which may include a carbonate, a dibasic ester and a mono-ester. The paint stripping composition may also contain an organic sulfur-containing compound such as dimethyl sulfoxide (DMSO), a glycol ether, a ketone, or combination thereof. The composition may be used in a process for removing paint by applying it to a painted surface. A degreasing composition is also disclosed which may comprise a carbonate and a alkyl-substituted cyclo-alkane such as naphthene. The compositions have several important attributes, including low toxicity and high efficacy in removing paint and coatings.Type: GrantFiled: September 1, 2000Date of Patent: May 28, 2002Assignee: Huntsman Petrochemical CorporationInventors: James R. Machac, Jr., Edward T. Marquis, Susan A. Woodrum
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Patent number: 6391394Abstract: A method for manufacturing an electrophotographic photosensitive member in which an aluminum substrate is fitted on a substrate holder and a functional film comprising a non-monocrystalline material containing silicon atoms as the matrix is formed by low pressure chemical deposition on the surface of the substrate, which comprises surface of the substrate is cleaned with water in which carbon dioxide is dissolved, the substrate holder comprises a metal as the matrix and has formed ceramics at least on the inner surface. This method and a jig used therein make it possible to prevent fine image defects, thereby improving electrophotography characteristics, and to economically and stably manufacture electrophotographic photosensitive members which provide high quality images free from defects and unevenness.Type: GrantFiled: December 29, 1997Date of Patent: May 21, 2002Assignee: Canon Kabushiki KaishaInventors: Toshiyasu Shirasuna, Yoshio Segi, Hiroyuki Katagiri
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Publication number: 20020053356Abstract: A cleaning composition for removing organic deposits from hard to reach surfaces. In its basic embodiment, the cleaning composition comprises: a) a water miscible solvent; b) an inorganic salt in crystal form; and c) water. The inorganic salt in crystal form comprises from about 30 to about 70% weight of the total composition.Type: ApplicationFiled: August 31, 2001Publication date: May 9, 2002Inventor: Gustavo M. Gonzalez
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Patent number: 6383998Abstract: An anhydrous or aqueous composition containing at least one volatile fluoro compound in an amount of at least 0.5% by weight, and a process for make-up removal or for cleansing the skin, comprising (1) applying, preferably with the fingers, a pad of cotton wool, or a paper tissue, a sufficient amount of the composition to the parts of the skin to be cleansed or from which make-up is to be removed, (2) lightly massaging so as to detach the maximum amount of impurities and of the make-up product, and (3) removing the composition using a pad of cotton wool optionally soaked in water.Type: GrantFiled: June 30, 2000Date of Patent: May 7, 2002Assignee: L'OréalInventor: Raluca Lorant
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Patent number: 6380151Abstract: A detergent composition for use with a cleaning pad comprising an effective amount of a superabsorbent material, said pad preferably being part of a cleaning implement comprising a handle and said cleaning pad preferably being removable. The detergent composition contains a limited amount of a detergent surfactant, preferably linear in structure and relatively hydrophilic, the level of hydrophobic materials being kept below about 0.5%, and the pH being maintained above about 9, to allow the superabsorbent material to be readily absorbed by the superabsorbent material. The process of using the detergent composition with such a cleaning pad, and the provision of a kit containing both detergent composition and cleaning pad are disclosed.Type: GrantFiled: September 20, 1999Date of Patent: April 30, 2002Assignee: The Procter & Gamble CompanyInventors: Ronald Anthony Masters, Nicola John Policicchio, Alan Edward Sherry
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Patent number: 6380149Abstract: 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: May 29, 2001Date of Patent: April 30, 2002Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, George G. I. Moore, John G. Owens
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Patent number: 6375831Abstract: A method of inhibiting and/or removing deposits from coke oven gas handling equipment is disclosed which comprises the addition of a treatment combination of a heterocyclic nitrogenous compound such as quinoline and 2-butoxyethanol to the flushing liquor used to cool coke oven effluent gases.Type: GrantFiled: February 1, 2000Date of Patent: April 23, 2002Assignee: BetzDearborn Inc.Inventors: Patrick J. Doyle, Terrence W. Mattioli, Gary S. Thundercliffe
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Patent number: 6368421Abstract: The invention relates to the field of microelectronics, such as integrated circuits, and more particularly to compositions and methods of removing photoresists or other organic materials from the surfaces of substrates used in the fabrication of integrated circuits. In particular the present invention relates to amine-free stripping compositions comprising solvent and surfactant that can effectively remove organic materials without corroding the underlying substrate, and the invention also relates to methods for removing these organic materials with the novel stripping composition.Type: GrantFiled: July 10, 1998Date of Patent: April 9, 2002Assignee: Clariant Finance (BVI) LimitedInventors: Joseph E. Oberlander, Mark S. Slezak, Dinesh N. Khanna, Dana L. Durham, Lawrence F. Spinicelli
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Patent number: 6369017Abstract: When certain weight ratios of certain flammable additive components (an ether and an epoxyalkane) are blended in n-propyl bromide, the components can actually function as flame retardants or flame suppressants when the resulting cleaning composition is used in aerosol applications. The proportions of the additives used are small; yet suitably effective stabilization against metallic corrosion is achieved even at mildly elevated temperatures.Type: GrantFiled: February 23, 2001Date of Patent: April 9, 2002Assignee: Albemarle CorporationInventors: Ronald L. Shubkin, Eric W. Liimatta
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Patent number: 6367486Abstract: An ethylenediaminetetraacetic acid or a mono-, di-, tri- or tetraammonium salt thereof residue cleaning composition removes photoresist and other residue from integrated circuit substrates. The balance of the composition is desirably made up of water, preferably high purity deionized water, or another suitable polar solvent. A process for removing photoresist or other residue from a substrate, such as an integrated circuit semiconductor wafer including titanium metallurgy, comprises contacting the substrate with the composition for a time and at a temperature sufficient to remove the photoresist or other residue from the substrate. Use of the ethylenediaminetetraacetic acid or a mono-, di-, tri- or tetraammonium salt thereof in the composition and process provides superior residue removal without attacking titanium or other metallurgy, oxide or nitride layers on the substrate.Type: GrantFiled: August 10, 2000Date of Patent: April 9, 2002Assignee: EKC Technology, Inc.Inventors: Wai Mun Lee, Zhefei Jessie Chen
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Patent number: 6367488Abstract: 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: September 27, 1999Date of Patent: April 9, 2002Assignee: 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: 6368422Abstract: Methods and compositions for dissolving adherent petroleum residues which occur in the production and processing of petroleum in which esters of the following formula are employed: R1—COO—(CnH2nO)x—R2 (I) which R1 is an alkyl group containing 6 to 22 carbon atoms or a (CH2)m—COOR4 group, R2 and R4 independently of one another represent an alkyl group containing 1 to 8 carbon atoms, n is the number 2 or 3 and m is a number of 1 to 6 and x is 0 or a number of 1 to 12.Type: GrantFiled: November 26, 1999Date of Patent: April 9, 2002Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wolfgang Breuer, Claus-Peter Herold
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Patent number: 6365565Abstract: The invention relates to novel compositions of 1-bromopropane and at least one organic solvent selected from the group consisting of methanol, ethanol, 1-propanol, 2-propanol, 2-methyl-2-propanol, 2,2,2-trifluoroethanol, tetrahydrofiran, nitromethane, ethyl acetate, acetonitrile, hexane, 1,3-dioxolane, 1-chloro-2-methylpropane, 1,1,1,2,3,4,4,5,5,5-decafluoropentane, methyl ethyl ketone and cyclohexane and more particularly to azeotrope-like compositions based on these compounds which are useful as solvents in refrigeration flushing, oxygen system cleaning and vapor degreasing applications.Type: GrantFiled: May 1, 2000Date of Patent: April 2, 2002Assignee: Honeywell International Inc.Inventors: Alagappan Thenappan, Leonard Michael Stachura, Martin Richard Paonessa, Kane David Cook
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Patent number: 6361615Abstract: A cleaning compound additive for adding to water or windshield wiper fluid to aid removal of insect splatters from a windshield. The cleaning compound additive includes the combination of effective amounts of anhydrous ammonia, alkoxylated linear alcohols sold under the trade name SURFONIC, dry particulate sodium bicarbonate, dry particulate polyvinyl pyrrolidone, dry particulate orange dye, and dry particulate citrus orange scent.Type: GrantFiled: March 4, 1999Date of Patent: March 26, 2002Inventor: Michael L. Callahan
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Publication number: 20020033184Abstract: A method and kit are disclosed for removing or alleviating the severity or intensity of stains from aldehyde-based sterilizing solutions through the use of reducing agents. This invention is effective even for porous surfaces such as filter paper and porous nylon films as well as for smooth surfaces such as glass, aluminum, copper, brass and stainless steel. Also, the invention may be used in a variety of formats such as a kit useful for making or using solutions or gels to treat the aldehyde-based stained surfaces of, for example, medical devices, hospital bench or table tops, hospital floors and skin (if in appropriate pH range), etc.Type: ApplicationFiled: June 28, 2001Publication date: March 21, 2002Inventors: Peter Zhu, Henry Hui, Les Feldman
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Patent number: 6358907Abstract: The present invention is directed to an aerosol formulation comprising (A) a composition comprising (i) from about 20 to about 50% by weight of an aromatic alcohol, such as benzyl alcohol, (ii) from about 5 to about 50% by weight of an accelerator, and (iii) from about 0.5 to about 5.0% by weight of water, based upon 100% weight of total composition; and (B) a propellant. The aerosol formulation is useful for removing paints, coatings, grease, and other residues from various substrates. A method of preparing the aerosol formulation is also provided.Type: GrantFiled: August 4, 2000Date of Patent: March 19, 2002Assignee: Napier Environmental Technologies Inc.Inventor: Sergio Vitomir
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Publication number: 20020023662Abstract: An improved approach for cleaning and recycling materials is based on pressurized solvents including liquid propane, butane, dimethyl ether, and supercritical carbon dioxide. The apporaches are particularly suitable for cleaning sorbent materials. The approach allows for recycling of the sorbent materials, the solvent and the contaminents, typically oils and the like.Type: ApplicationFiled: September 7, 2001Publication date: February 28, 2002Applicant: CRI Recycling Service, Inc.Inventors: John W. Summerfield, John P. Markiewicz, John M. Moses, Randall L. Barcus
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Patent number: 6346156Abstract: A process for removing printing inks and/or oil residues located on a surface of a printing apparatus comprising: (a) contacting the printing inks and/or oil residues located on the surface of the printing apparatus with a cleaning composition containing an alkyl polyglycoside corresponding to formula (I): R(G)x (I) wherein R is a linear saturated alkyl radical having from 8 to 22 carbon atoms, and (G)x is a glycoside or oligoglycoside radical having a degree of oligomerization, x, of from 1 to 10 to form a printing ink and/or oil residue emulsion; and (b) removing the printing inks and/or oil residue emulsion from the surface of the printing apparatus.Type: GrantFiled: June 23, 2000Date of Patent: February 12, 2002Assignee: Cognis Deutschland GmbHInventor: Matthias Fies
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Publication number: 20020014258Abstract: Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.Type: ApplicationFiled: October 11, 2001Publication date: February 7, 2002Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
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Publication number: 20020011261Abstract: Disclosed is a process of recycling and reusing an aqueous degreasing solution for further use as a component of a coolant solution which is itself recycled and reused in metal cutting machines. Also disclosed is a method of degreasing parts, and a degreasing apparatus which is controlled such that an appropriate amount of the aqueous degreasing solution is introduced into the coolant solution. Finally, disclosed herein is a method and system for preparing a coolant in which an aqueous degreasing solution is further utilized as a feeder solution for a coolant solution, with the resulting solution being able to be separated into its component parts and reused in the cutting and cleaning of metals to form metal parts.Type: ApplicationFiled: October 11, 2001Publication date: January 31, 2002Inventors: Mitchell H. Berger, Dennis L. Foster, David K. Shaffer, Phillip B. Simon, John D. Wheatley
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Patent number: 6342104Abstract: A cleaning apparatus and a cleaning method for cleaning an object are provided. In the cleaning apparatus, a drying chamber 42 and a cleaning bath 41 are separated from each other up and down, respectively. Thus, a space in the drying chamber 42 can be insulated from a space of the cleaning bath 41 through rotary doors 59a and a slide door 72. In the cleaning method, a cleaning process in the cleaning bath 41 is carried out while sealing it by the rotary doors 59a. On the other hand, a drying process in the drying chamber 42 is accomplished while sealing and closing it by the slide door 72. Consequently, there is no possibility that, during the drying process, the object is subjected to a bad influence from a chemical treatment.Type: GrantFiled: March 8, 2000Date of Patent: January 29, 2002Assignee: Tokyo Electron LimitedInventors: Yuji Kamikawa, Satoshi Nakashima, Kinya Ueno
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Publication number: 20020010117Abstract: Versatile cleaning composition that has tremendous cleaning power, yet is compatible with many surfaces. For example, the cleaning composition easily cleans oil, grease, tar, and rubber from soiled surfaces, but does not damage metals, vehicle paints, concrete, plastics such as polycarbonate, MYLAR polyester and silicone sealants, wood, ceramic, and the like. The cleaning composition includes an oil solubilizing amount of a degreaser, a rubber solubilizing amount of a rubber solvent, and a polar, organic diluent. In preferred embodiments, the degreaser comprises a glycol ether, the rubber solvent comprises an nonaromatic naphtha, and the diluent comprises an alcohol, preferably a C2 to C5 alcohol.Type: ApplicationFiled: January 19, 2001Publication date: January 24, 2002Inventor: Mary E. McDonald
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Publication number: 20020000239Abstract: A stripping composition and a method of using the stripping composition to remove cured resins such as elastomeric silicone adhesive deposits from ceramic and metal surfaces of electronic modules to provide reworkability options in assembly processes including diagnostic parts, parts replacement and recovery of substrates from test vehicles is provided. The stripping compositions comprise a base preferably an organic base such as a quaternary ammonium hydroxide, a surfactant and a high boiling environmentally and chemically safe solvent such as di- or tri-propylene glycol alkyl ether. In another stripping composition, the base is used in combination with a mixture of N-alkyl pyrrolidone components, preferably an N-alkyl pyrrolidone and a N-cycloalkyl pyrrolidone. The stripping compositions are used to contact an electronic module having a cured resin such as a silicone adhesive residue deposit on the module surface to dissolve, remove or strip the deposit.Type: ApplicationFiled: September 27, 1999Publication date: January 3, 2002Inventors: KRISHNA G. SACHDEV, UMAR M. AHMAD, FAREED Y. AUDI, DANIEL G. BERGER, JOHN U. KNICKERBOCKER, CHON C. LEI
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Publication number: 20010056051Abstract: A thermoplastic norbornene resin is purified by using a cleaning liquid to eliminate organic impurities, ionic impurities, metallic impurities, and particles of the resin. The cleaning liquid is selected from 2-propanol and a mixed solvent of 2-propanol and water. A substrate for a magnetic recording medium of the invention is fabricated by injection-molding the thermoplastic norbornene resin purified by this method. A magnetic recording medium of the invention includes such a substrate, and a magnetic layer, a protective layer, and a liquid lubricant layer sequentially formed on the substrate. A method for manufacturing such a magnetic recording medium is also provided.Type: ApplicationFiled: April 6, 2001Publication date: December 27, 2001Inventors: Youich Tei, Syoji Sakaguchi, Katsunori Suzuki
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Patent number: 6328816Abstract: The invention is a cleaning solution for degreasing metal articles which contains water soluble, N-alkyl substituted amides in which the alkyl substituent has from 6 to 22 carbon atoms and at least one of (i) amine oxide surfactants, (ii) non-ionic water soluble nonionic surfactants with molecules containing a polyoxyalkylene block, and (iii) alkali stable anionic, or both anionic and amphoteric, surfactants. Preferred compositions of the invention can replace a vapor degreasing process for cleaning oil, grease, and waxy-type contaminants from metal articles to the level of cleanliness required in the aerospace industry.Type: GrantFiled: January 26, 1998Date of Patent: December 11, 2001Assignee: Henkel CorporationInventors: Lawrence R. Carlson, John R. Pierce
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Patent number: 6326346Abstract: Stain removing compositions which can be granular detergents, liquid detergents, granular stain removers, liquid stain removers, household cleaners, food industrial cleaners, and the like, containing proteolytic enzymes derived from bacterium No. 177, are effective low temperature (0° C.-50° C.) stain removers.Type: GrantFiled: June 23, 2000Date of Patent: December 4, 2001Assignees: The Clorox Company, The Penn State Research FoundationInventors: Jean E. Brenchley, Jennifer Loveland-Curtze, Kevin R. Gutshall, Vickie L. Humphrey
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Patent number: 6325862Abstract: A method for removing a stain from a surface of a structure which includes the steps of spraying an aggregating agent comprising a cationic linear organic polymer onto the surface of such structure having a stain produced thereon, dissociating the stain particles by use of Coulomb force f generated between the stain particles and the aggregating agent, displacing slightly the stain particles along the surface of the structure to cause peeling thereof from the surface to be cleaned, and simultaneously, aggregating the same for cleaning. Another embodiment includes maintaining water permeability of a road by easily eliminating a stain adhering to the surfaces of granular aggregate particles forming a drainage-type pavement layer of a road without the use of various mechanical tools.Type: GrantFiled: October 20, 2000Date of Patent: December 4, 2001Assignee: Kabushiki Kaisha HanogumiInventor: Yoshio Otsuki
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Patent number: 6319329Abstract: A method for cleaning an object to be processed in which the atmosphere in a drying chamber is replaced by an inert gas prior to placing an object to be cleaned from an external environment into the chamber. The object is then transported by an elongated retaining member from the drying chamber through a lower opening in the chamber into a processing bath disposed below the chamber. The object is then cleaned in the processing bath. The object is then transported from the processing bath to the drying chamber where it is dried by filling the atmosphere of the drying chamber with organic solvent. The cleaning process in the cleaning bath is carried out while the bath is screened by a nitrogen-gas curtain. The method also includes opening a lid of the chamber prior to insertion of the object into the chamber and closing the lid after insertion of the object, as well as the opening and closing of the lower opening in the chamber.Type: GrantFiled: November 2, 1999Date of Patent: November 20, 2001Assignee: Tokyo Electron LimitedInventors: Yuji Kamikawa, Kinya Ueno, Satoshi Nakashima