Halogenated Hydrocarbon Component Patents (Class 510/412)
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Publication number: 20040087465Abstract: Disclosed is a composition comprised of n-propyl bromide and 1,1,1,3,3-pentafluorobutane. This invention also relates to cleaning solvent systems comprised of n-propyl bromide and 1,1,1,3,3-pentafluorobutane and methods for cleaning various solid substrates.Type: ApplicationFiled: October 30, 2002Publication date: May 6, 2004Inventors: Richard J. DeGroot, Ronald L. Shubkin, Dov Shellef
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Patent number: 6699829Abstract: Chemical solvating, degreasing, stripping and cleaning agents. The agents are cleaning and solvating mixtures of dichloroethylene and alkoxy-substituted perfluoro compounds that contain six carbon atoms, with optionally highly fluorinated materials to retard flammability and/or other enhancement agents that improve and enhance the properties of the composition to accomplish its desired cleaning or solvating task. These other agents are one or more of the following materials: alcohols, esters, ethers, cyclic ethers, ketones, alkanes, aromatics, amines, siloxanes terpenes, dibasic esters, glycol ethers, pyrollidones, or low- or non-ozone depleting halogenated hydrocarbons. These mixtures are useful in a variety of solvating, vapor degreasing, photoresist stripping, adhesive removal, aerosol, cold cleaning, and solvent cleaning applications including defluxing, dry-cleaning, degreasing, particle removal, metal and textile cleaning.Type: GrantFiled: June 7, 2002Date of Patent: March 2, 2004Assignee: Kyzen CorporationInventors: Kyle Doyel, Michael Bixenman
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Patent number: 6689734Abstract: Chemical solvating, degreasing, stripping and cleaning agents. The agents are cleaning and solvating mixtures of mono brominated compounds with highly fluorinated compounds and/or other agents that improve and enhance the properties of the original mixture. The addition of these agents to the composition will modify the physical and/or cleaning characteristics of the monobrominated compound and/or monobrominated compound-fluorinated compound mixture to accomplish is desired cleaning or solvating task. These other agents are one or more of the following materials: alcohols, esters, ethers, cyclic ethers, ketones, alkanes, terpenes, dibasic esters, glycol ethers, pyrollidones, or low or non ozone depleting chlorinated and chlorinated/fluorinated hydrocarbons.Type: GrantFiled: July 10, 2002Date of Patent: February 10, 2004Assignee: Kyzen CorporationInventors: Kyle J. Doyel, Michael L. Bixenman, Scotty S. Sengsavang, Arthur J. Thompson, Valerie G. Porter, Patricia D. Overstreet, Kristie L. Gholson
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Publication number: 20040014621Abstract: Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and propane; 1,1,1,2-tetrafluoroethane and cyclopropane; 1,1,1-trifluoroethane and DME or propylene; 1,1-difluoroethane and propane, isobutane, butane or cyclopropane; fluoroethane and propane or cyclopropane; 1,1,1,2,2,3,3-heptafluoropropane and butane, cyclopropane, DME, isobutane or propane; or 1,1,1,2,3,3,3-heptafluoropropane and butane, cyclopropane, isobutane or propane.Type: ApplicationFiled: December 20, 2002Publication date: January 22, 2004Inventors: Barbara Haviland Minor, Donald Bernard Bivens, Brooks Shawn Lunger
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Patent number: 6676768Abstract: The present invention comprises methods, compositions and apparatus for cleaning the surfaces within vessels that have restricted points of entry, and in particular, the surfaces within oxygen converters and oxygen cylinders. These oxygen converters and oxygen cylinders are components of the onboard oxygen supply systems of aircraft. A surfactant and a solvent are mixed to form a cleaning composition that is boiled at reduced pressure and increased temperature within the oxygen converter or oxygen cylinder. The oxygen converter or oxygen cylinder is rinsed with pure solvent, and the rinse fluid is measured to determine the level of contaminants. Dry air is forced through the oxygen converter or oxygen cylinder to remove remaining solvent. The cleaning composition may comprise a fluorocarbon solvent and a fluorosurfactant.Type: GrantFiled: July 30, 2002Date of Patent: January 13, 2004Assignee: Versar, Inc.Inventors: Gregory M. Fillipi, Bobby E. Walls, Anthony K. Magerus, Jerry L. Gore, Jerome B. Strauss, Gerard K. Newman, Jan Goldberg, Christy Crowe
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Publication number: 20030232736Abstract: A detergent blend is prepared by admixing together a fluorinated surfactant and an amphoteric-based sultaine surfactant hydrotrope. This blend can then be formulated into a detergent concentrate which includes a caustic compound, a chelant, a descaler, and other adjuvants to enable the concentrate to be diluted into a use solution for use in either an acid or base environment. The use solution prepared from the detergent blend is particularly useful in cleaning draft beer lines, dairy lines, and the like.Type: ApplicationFiled: March 21, 2003Publication date: December 18, 2003Inventor: Lance L. Renfrow
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Publication number: 20030228989Abstract: A method and apparatus is disclosed for producing fluorine by providing a contained fluorine precursor source located proximate to or remotely from an adsorbent bed, optionally in a replaceable unit that may be a replaceable module comprising both the fluorine source and the adsorbent bed. Fluorine derived preferably from a nitrogen trifluoride source and used to remove deposited silicon-containing impurities in reaction chambers is reclaimed from an adsorbent bed, and made available to the reaction chamber as a supplemental fluorine source to reduce the total required amount of nitrogen trifluoride source gas. The separation column adsorbent is regenerated in cyclical intervals using a reverse flow of inert gas.Type: ApplicationFiled: June 10, 2002Publication date: December 11, 2003Inventors: Edward Frederick Ezell, Richard A. Hogle, Walter H. Whitlock, Graham A. McFarlane
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Patent number: 6660701Abstract: This invention relates to improved stabilizing compositions for n-propyl bromide. More particularly, the cleaning composition includes about 0.1 to 5% Butylene oxide, about 0.1 to 5.0% t-butanol, about 0.1 to 5% acetonitrile, about 0.1 to 5% nitromethane; and the remainder n-propyl bromide. These mixtures are useful as cleaning solvents for the electronic, aerospace, and general manufacturing industries, especially in the area of vapor degreasing.Type: GrantFiled: October 22, 2001Date of Patent: December 9, 2003Assignee: Polysystems USA, Inc.Inventor: Richard Degroot
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Publication number: 20030224956Abstract: Precision cleaning compositions for electronic and electrical components comprise at least one halogenated, saturated or unsaturated hydrocarbon other than cis-1,2-dichloroethylene; at least one fluorinated saturated or unsaturated hydrocarbon having the formula CnHmFp, wherein 3≦n≦6, 0≦m≦9 and p≧5; at least one fluorinated saturated or unsaturated ether having the formula CaHbOcFd, wherein 3≦a≦6, 0≦b≦9, c≧1, and d≧5; methylal; at least one simple alcohol; and optionally at least one propellant. In a preferred embodiment, the composition comprises trans-1,2-dichloroethylene, methylal, methyl nonafluorobutyl ether, ethyl nonafluoroisobutyl ether and carbon dioxide. The cleaning compositions are environmentally friendly (non-ozone depleting), are strong enough to tackle tough soils yet mild enough for use on plastic components, are non-flammable, have no flash point, and leave no residue on the substrate.Type: ApplicationFiled: June 3, 2002Publication date: December 4, 2003Applicant: CRC Industries, Inc.Inventors: Richard L. Miller, Melodee A. Nemeth
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Publication number: 20030220218Abstract: A non-flammable ternary liquid cleaner is formulated from first, second and third solvents. The first solvent is a hydrofluorocarbon, the second solvent is a dichloroethylene and the third solvent is a hydrochlorofluorocarbon. The hydrochlorofluorocarbon imparts low flammability to the cleaner. The hydrofluorocarbon is present in a concentration of about 10 percent to about 80 percent by weight of the cleaner, the dichloroethylene is present in a concentration of about 10 percent to about 60 percent by weight of the cleaner and the hydrochlorofluorocarbon is present in a concentration of at about 10 percent to about 40 percent by weight of the cleaner. The third solvent is non-flammable and thus renders the ternary cleaner non-flammable.Type: ApplicationFiled: May 23, 2002Publication date: November 27, 2003Inventor: James M. Fitzgerald
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Publication number: 20030211956Abstract: This invention relates to compositions that include at least one fluoroether and at least one hydrofluorocarbon. Included in this invention are compositions of a cyclic or acyclic hydrofluoroether of the formula CaFbH2a+2−bOc wherein a=2 or 3 and 3≦b≦8 and c=1 or 2 and a hydrofluorocarbon of the formula CnFmH2n+2−m wherein 1≦n≦4 and 1≦m≦8. Such compositions may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, and displacement drying agents.Type: ApplicationFiled: June 5, 2003Publication date: November 13, 2003Inventors: Diana Lynn Klug, Barbara Haviland Minor, Donna Marie Patron, Tuneen Chisolm-Carter, Allen Capron Sievert
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Patent number: 6646020Abstract: A composition useful as a blowing agent having no flash point or reduced combustibility comprising 2-chloropropane and a gas selected from the group consisting of a fluorohydrocarbon, perfluorocarbons, fluoroethers, hydrofluoropolyethers and mixtures thereof is disclosed. A polyisocyanurate foam or a polyurethane modified polyisocyanurate foam having a mainly closed cell structure and also a method for preparing this foam, the latter comprising closed cells wherein a foam blowing agent consisting of a mixture of 2-chloropropane and one or more HFC compounds including pentafluoropropane, pentafluorobutane, heptafluoropropane, hexafluoropropane or pentafluoroethane are disclosed. Pentanes can be added if desired. Azeotropic mixtures in which 2-chloropropane is an ingredient are disclosed.Type: GrantFiled: February 14, 2002Date of Patent: November 11, 2003Assignee: Vulcan Chemicals a division of Vulcan Materials CompanyInventors: Janice M. Nyberg, Eric L. Mainz
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Patent number: 6638987Abstract: This invention provides azeotrope-like compositions of 1,1,1,2-tetrafluoroethane, 1,1,1,3,3-pentafluoropropane-245fa and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: June 10, 2002Date of Patent: October 28, 2003Assignee: Honeywell International, Inc.Inventors: Mary C. Bogdan, Gary M. Knopeck, Hang T. Pham, Rajiv R. Singh, David Dressel, David J. Williams
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Publication number: 20030199408Abstract: The present invention relates to the discovery of compositions which include fluoroethane, 2-fluoropropane or tert-butylfluoride. These compositions are useful as pure components or with at least one of tetrafluoroethane, difluoroethane, hexafluoropropane, a hydrocarbon or dimethylether.Type: ApplicationFiled: April 22, 2003Publication date: October 23, 2003Inventors: Barbara Haviland Minor, Vinci Martinez Felix, Allen Capron Sievert
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Publication number: 20030197149Abstract: A refrigerant composition that can be a substitute for chlorodifluoromethane (HCFC-22) comprises: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1-trifluoroethane, (c) a third constituent of 1,1,1,2-tetrafluoroethane, and (d) a fourth constituent selected from the group consisting of 1,1-difluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, 1,1,1,2,3,3-hexafluropropane and butane.Type: ApplicationFiled: April 19, 2002Publication date: October 23, 2003Inventors: Byung-Gwon Lee, Jong-Sung Lim, Byoung Sung Ahn, Kun You Park, Chang-Nyeon Kim
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Patent number: 6635686Abstract: This invention provides azeotrope-like compositions of 1,1,1,2-tetrafluoroethane, 1,1,1,3,3-pentafluoropropane-245fa and 2-methylbutane that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: June 10, 2002Date of Patent: October 21, 2003Assignee: Honeywell International Inc.Inventors: Mary C. Bogdan, Hang T. Pham, David J. Williams, Gary M. Knopeck, Rajiv R. Singh
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Publication number: 20030171239Abstract: The present invention relates to methods and compositions for treating a surface of a substrate by foam technology that includes at least one treatment chemical. The invention more particularly relates to the removal of undesired matter from the surface of substrates with small features, where such undesired matter may comprise organic and inorganic compounds such as particles, films from photoresist material, and traces of any other impurities such as metals deposited during planarization or etching. A method according to the present invention for treating a surface of a substrate comprises generating a foam from a liquid composition, wherein the liquid composition comprises a gas; a surfactant; and at least one component selected from the group consisting of a fluoride, a hydroxylamine, an amine and periodic acid; contacting the foam with the surface of a substrate; and, removing the undesired matter from the surface of the substrate.Type: ApplicationFiled: January 28, 2002Publication date: September 11, 2003Inventors: Bakul P. Patel, Mihaela Anca-Mac Cernat, Robert J. Small
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Publication number: 20030166487Abstract: Normally liquid, omega-hydrofluoroalkyl ether compounds (and selected mixtures thereof) have a saturated perfluoroaliphatic chain of carbon atoms interrupted by one or more ether oxygen atoms. The compounds can be prepared, e.g., by decarboxylation of the corresponding fluoroalkyl ether carboxylic acids and are useful, e.g., in cleaning and drying applications.Type: ApplicationFiled: September 12, 2002Publication date: September 4, 2003Applicant: 3M Innovative Properties CompanyInventors: George G. I. Moore, Richard M. Flynn, Miguel A. Guerra, John G. Owens
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Patent number: 6608019Abstract: 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: January 10, 2003Date of Patent: August 19, 2003Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, George G. I. Moore
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Patent number: 6602844Abstract: A process for producing a perfluorocyclicamine which includes electrolytically fluorinating a triallylamine in anhydrous liquid hydrogen fluoride. A constant boiling composition and process for producing the same is also described.Type: GrantFiled: August 9, 2001Date of Patent: August 5, 2003Assignee: Showa Denko Kabushiki KaishaInventors: Kiyomitsu Kanno, Toshio Nagashima, Galina I. Kaourova, Dmitri D. Moldavski, Vladimir I. Gribel
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Publication number: 20030134763Abstract: 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: ApplicationFiled: February 3, 2003Publication date: July 17, 2003Applicant: General Electric CompanyInventors: Mark Guenter Herwig, Mark Joseph Rechtsteiner, Roy Fred Thornton, Bruce Edward Goodwin
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Publication number: 20030109399Abstract: Cleaning compositions and methods for cleaning carpets and other materials are disclosed. The cleaning compositions contain nanolatexes and the methods for cleaning carpets and other materials use such compositions. The compositions may also contain a source of peroxygen bleach and/or a fluorinated compound.Type: ApplicationFiled: July 10, 2002Publication date: June 12, 2003Applicant: The Procter & Gamble CompanyInventors: Oreste Todini, Stefano Resta, Marco DeSantis, Stefano Scialla, Cedric Willy Geffroy, Marie-Pierre Catherine Labeau, Eric Aubay
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Publication number: 20030100470Abstract: A cleaning sheet having high cleaning ability and with which finished quality of a surface after cleaning is excellent. A cleaning sheet comprising a sheet base material impregnated with an aqueous cleaning composition that has a pH value of 8 to 11, the composition comprising (A) at least one compound selected from monoethanolamine, morpholine and morpholine derivative compounds, (B) a saturated or unsaturated fatty acid having 14 to 22 carbon atoms, (C) a terpene-type hydrocarbon, and (D) a surfactant.Type: ApplicationFiled: November 19, 2002Publication date: May 29, 2003Inventor: Rumi Takano
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Publication number: 20030096724Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-244fa.Type: ApplicationFiled: October 29, 2002Publication date: May 22, 2003Inventors: Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Milton Cook
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Publication number: 20030096722Abstract: The present invention relates to a of disinfecting and/or cleaning a hard-surface with a composition comprising a biguanide antimicrobial agent, an essential oil or an active thereof and an organic acid or a salt thereof whereby immediate and/or long lasting disinfecting benefits are provided.Type: ApplicationFiled: September 27, 2002Publication date: May 22, 2003Applicant: The Procter & Gamble CompanyInventors: Alberto Caselli, Floriana Raso
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Publication number: 20030083220Abstract: Chemical solvating, degreasing, stripping and cleaning agents. The agents are cleaning and solvating mixtures of mono brominated compounds with highly fluorinated compounds and/or other agents that improve and enhance the properties of the original mixture. The addition of these agents to the composition will modify the physical and/or cleaning characteristics of the monobrominated compound and/or monobrominated compound-fluorinated compound mixture to accomplish is desired cleaning or solvating task. These other agents are one or more of the following materials: alcohols, esters, ethers, cyclic ethers, ketones, alkanes, terpenes, dibasic esters, glycol ethers, pyrollidones, or low or non ozone depleting chlorinated and chlorinated/fluorinated hydrocarbons.Type: ApplicationFiled: July 10, 2002Publication date: May 1, 2003Applicant: Kyzen CorporationInventors: Kyle Doyel, Michael Bixenman, Scotty Sengsavang, Arthur Thompson, Valerie Porter, Patricia Overstreet, Kristie Gholson
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Publication number: 20030078181Abstract: The invention relates to a cleaning composition comprising an immiscible liquid system having at least one liquid-liquid interface with an interfacial tension greater than 5 mN/m. The less polar solvent in the system has a carbon chain length of at least 4, preferably greater than 6, or is a silicone with more than 3 SiO units. Typical examples of suitable less polar solvents are hydrocarbons, fluoroethers, polydimethylsiloxanes and fatty acid methyl esters. The more polar liquid in the system is preferably water. The composition is particularly suitable for cleaning soiled fabric, especially to remove particulate soil therefrom.Type: ApplicationFiled: October 10, 2002Publication date: April 24, 2003Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: Vijaya Milind Bargaje, Vidur Behal, Kavitha Dhandapani, Glyn Roberts
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Patent number: 6551978Abstract: An azeotropic solvent composition comprising 90.3 mass % of 1,3-dichloro-1,1,2,2,3-pentafluoropropane and 9.7 mass % of n-hexane.Type: GrantFiled: June 4, 2001Date of Patent: April 22, 2003Assignee: Asahi Glass Company, LimitedInventors: Tsuyoshi Hanada, Masaaki Tsuzaki
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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: 6544595Abstract: A method for mixing an organic chemical substance with a carrier solvent, wherein the carrier solvent comprises at least one fluorinated solvent A selected from the group consisting of (perfluorohexyloxy)methane and tridecafluorohexane.Type: GrantFiled: April 11, 2002Date of Patent: April 8, 2003Assignee: Asahi Glass Company, LimitedInventors: Tsuyoshi Hanada, Masaaki Tsuzaki
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Patent number: 6537380Abstract: A homogeneous non-aqueous composition containing a fluorinated solvent, ozone, and optionally a co-solvent and the use of these compositions for cleaning and oxidizing substrates is described.Type: GrantFiled: January 7, 2002Date of Patent: March 25, 2003Assignee: 3M Innovative Properties CompanyInventors: Lawrence A. Zazerra, Frederick E. Behr, Michael J. Parent, Paul E. Rajtar
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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: 6531075Abstract: Acids having a pKa of less than about 4 may be used to stabilize certain perfluoroalkyl alkyl ketones, particularly a substantially pure perfluoroalkyl alkyl ketone, a substantially pure aqueous solution of a perfluoroalkyl alkyl ketone or a substantially pure hydrate of a perfluoroalkyl alkyl ketone.Type: GrantFiled: October 29, 1999Date of Patent: March 11, 2003Assignee: Rhodia LimitedInventors: Christophe Rochin, Christopher Mark Richardson
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Patent number: 6511610Abstract: Composition consisting essentially of 55 to 94% R-125, 2.5 to 35% of R-134a and 3.5 to 25% by weight of DME, and its use as a refrigerant in a heat transfer system designed for R-22 and comprising, as lubricant, a mineral oil or an alkylbenzene oil.Type: GrantFiled: August 29, 2001Date of Patent: January 28, 2003Assignee: AtofinaInventors: Laurent Caron, Gérard Guilpain
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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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Publication number: 20030013626Abstract: In a process to clean a polyurethane glove, which has been cured on a glove form, so as to remove non-volatile residues and low-volatility residues from the glove before the glove is removed from the form, the form bearing the glove is immersed in a quiescent or agitated bath consisting essentially of a solvent selected from isopropyl alcohol, hexane, and blends of isopropyl and hexane, preferably isopropyl alcohol, at an elevated temperature of approximately 60° C., for a predetermined time not less than approximately five minutes, preferably for a predetermined time of approximately ten to twenty minutes, whereupon the form bearing the glove is withdrawn from the bath and the glove is allowed to be air-dried on the form.Type: ApplicationFiled: July 12, 2001Publication date: January 16, 2003Applicant: Wilshire Technologies, Inc.Inventors: Lee John Jared, Derek Warneke, Ferdinand Frederick Pisacane
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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: 6500795Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-244fa.Type: GrantFiled: January 24, 2001Date of Patent: December 31, 2002Assignee: Honeywell International Inc.Inventors: Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Milton Cook
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Patent number: 6491729Abstract: A dry-cleaning solvent composition for dry-cleaning is disclosed, comprising a compound or solvent selected from the group consisting of propylene glycol methyl ether formate, propylene glycol methyl ether acetate, propylene glycol methyl ether propionate, propylene glycol methyl ether butyrate, propylene glycol ethyl ether formate, propylene glycol ethyl ether acetate, propylene glycol ethyl ether propionate, propylene glycol ethyl ether butyrate, ethylene glycol methyl ether formate, ethylene glycol methyl ether acetate, ethylene glycol methyl ether propionate. ethylene glycol methyl ether butyrate, and the mixture thereof. The dry-cleaning solvent composition may further comprise a compound or solvent selected from the group consisting of perchloroethylene, stoddard solvent type I, stoddard solvent type II, and the mixture thereof, in an amount of below 70 wt %.Type: GrantFiled: January 28, 2000Date of Patent: December 10, 2002Inventors: Chin Yen Lee, Shen Kung Liao
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Patent number: 6491983Abstract: Normally liquid, omega-hydrofluoroalkyl ether compounds (and selected mixtures thereof) have a saturated perfluoroaliphatic chain of carbon atoms interrupted by one or more ether oxygen atoms. The compounds can be prepared, e.g., by decarboxylation of the corresponding fluoroalkyl ether carboxylic acids and are useful, e.g., in cleaning and drying applications.Type: GrantFiled: February 20, 2001Date of Patent: December 10, 2002Assignee: 3M Innovative Properties CompanyInventors: George G. I. Moore, Richard M. Flynn, Miguel A. Guerra, John G. Owens
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Azeotrope-like composition of 1,1,1,3,3-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane
Publication number: 20020177537Abstract: Provided are azeotropic and azeotrope-like mixtures of 1,1,1,3,3-pentafluoropropane (HFC-245fa) and 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa) that are useful as intermediates in the production of HFC-245fa. A process for separating HFC-245fa and HCFC-235fa is also provided. HFC-245fa is useful as a nontoxic, zero ozone depleting fluorocarbon useful as solvents, blowing agents, refrigerants, cleaning agents, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing compositions and power cycle working fluids.Type: ApplicationFiled: March 21, 2001Publication date: November 28, 2002Inventors: Kane David Cook, Rajiv Ratna Singh, Hsueh Sung Tung -
Publication number: 20020175313Abstract: A nonazeotropic working fluid medium for use in a thermodynamic cycle system, comprising a mixture of compounds and characterized in that one or more vaporization loss/replenishment cycles of each less than about 15% of the total weight of the medium and cumulative up to about 50% of the total weight of the medium result in a total decrease in the coefficient of performance of said medium of no more than about 5%, or a loss in electric power generating efficiency of not more than about 3 percent.Type: ApplicationFiled: March 21, 2002Publication date: November 28, 2002Inventor: Chujun Gu
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Publication number: 20020169098Abstract: 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: ApplicationFiled: March 12, 2002Publication date: November 14, 2002Applicant: 3M Innovative Properties CompanyInventors: Richard M. Flynn, George G.I. Moore, John G. Owens
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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: 6475971Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1,2-dichloro-3,3,3-trifluoropropene (HCFC-1223xd) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-1223xd.Type: GrantFiled: January 24, 2001Date of Patent: November 5, 2002Assignee: Honeywell International Inc.Inventors: Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung
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Publication number: 20020142927Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-244fa.Type: ApplicationFiled: January 24, 2001Publication date: October 3, 2002Inventors: Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Milton Cook
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Publication number: 20020137646Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1,2,2-trichloro-1,3,3,3-tetrafluoropropane (HCFC-224aa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-224aa.Type: ApplicationFiled: January 24, 2001Publication date: September 26, 2002Inventors: Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung
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Publication number: 20020137642Abstract: 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: ApplicationFiled: March 7, 2002Publication date: September 26, 2002Applicant: L'Oreal, S.A.Inventor: Raluca Lorant
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Publication number: 20020137645Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1,2-dichloro-3,3,3-trifluoropropene (HCFC-1223xd) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-1223xd.Type: ApplicationFiled: January 24, 2001Publication date: September 26, 2002Inventors: Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung
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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