Oxygen Containing Component Patents (Class 510/411)
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Patent number: 6255273Abstract: Azeotropic or near azeotropic compositions based on difluoromethoxy-bis(difluoromethyl ether) and/or 1-difluoromethoxy-1,1,2,2-tetrafluoroethyl difluoromethyl ether.Type: GrantFiled: August 16, 1999Date of Patent: July 3, 2001Assignee: Ausimont S.p.A.Inventors: Ezio Musso, Giampiero Basile, Sauro Girolomoni
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Patent number: 6235700Abstract: The invention provides azeotrope-like compositions consisting essentially of RfOC2H5, where Rf is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and an organic solvent selected from the group consisting of: straight chain, branched chain and cyclic alkanes having 6 to 8 carbon atoms; esters having 4 carbon atoms; ketones having 4 carbon atoms; disiloxanes having 6 carbon atoms; cyclic and acyclic ethers having 4 to 6 carbon atoms; chlorinated alkanes having 3 to 4 carbon atoms and chlorinated alkenes having 2 carbon atoms. The compositions are useful for cleaning, as solvents or carriers for coating and as heat transfer materials.Type: GrantFiled: October 28, 1999Date of Patent: May 22, 2001Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Dean S. Milbrath, John G. Owens, Daniel R. Vitcak, Hideto Yanome
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Patent number: 6221273Abstract: Azeotropic or near azeotropic compositions based on hexafluoropropane (R 236) as substitutes of CClF2-CClF2 (R 114) which essentially consist of R 236 and bis(difluoromethyl)-ether or n-butane, or mixtures thereof, for heat pumps, air-conditioners, etc.Type: GrantFiled: July 9, 1998Date of Patent: April 24, 2001Assignee: Ausimont S.p.A.Inventors: Giampiero Basile, Ezio Musso
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Patent number: 6187729Abstract: A liquid cleaning composition comprising a solvating agent and a rinsing agent, the ratio of the vapor pressure of said rinsing agent to the vapor pressure of said solvating agent being at least about 20 and the use thereof to clean substrates that have soil adhered thereto.Type: GrantFiled: June 6, 1995Date of Patent: February 13, 2001Assignee: Petroferm Inc.Inventors: Michael E. Hayes, Donald P. Hosman, Kevin R. Hrebenar, Robert D. Sell
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Patent number: 6153575Abstract: Describes a stabilized trans-1,2-dichloroethylene composition having a low concentration of aliphatic aldehyde hydrazone, optionally in combination with an epoxide. The aliphatic aldehyde hydrazone was found to be more efficient than commercially used hydroquinone monomethylether (HQMME) in preventing the isomeric transformation of trans-1,2-dichloroethylene to cis-1,2-dichloroethylene during storage. Also described is a process for cleaning the surface of an article with the stabilized 1,2-dichloroethylene composition.Type: GrantFiled: March 6, 2000Date of Patent: November 28, 2000Assignee: PPG Industries Ohio, Inc.Inventors: Earl M. Gorton, Ronald D. Olinger
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Patent number: 6107267Abstract: A process is disclosed for recovering HF from a product mixture including HF and CF.sub.3 CF.sub.2 CHF.sub.2. The process involves (1) distilling the product mixture to remove all products which have a lower boiling point than the lowest boiling azeotrope containing HF and CF.sub.3 CF.sub.2 CHF.sub.2 ; and (2) distilling the azeotrope to recover HF as an azeotropic composition containing HF and CF.sub.3 CF.sub.2 CHF.sub.2. Also disclosed are compositions of hydrogen fluoride in combination with an effective amount of CF.sub.3 CF.sub.2 CHF.sub.2 to form an azeotrope or azeotrope-like composition with hydrogen fluoride, (e.g., compositions containing from about 57.1 to 67.2 mole percent CF.sub.3 CF.sub.2 CHF.sub.2).A process for producing certain compositions comprising(a) CF.sub.3 CF.sub.2 CHF.sub.2 and (b) at least one saturated halogenated hydrocarbon and/or ether having the formula:C.sub.n H.sub.2n+2-a-b Cl.sub.a F.sub.b O.sub.Type: GrantFiled: August 20, 1998Date of Patent: August 22, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: V. N. Mallikarjuna Rao, Allen Capron Sievert, Munirpallam A. Subramanian
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Patent number: 6103684Abstract: 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, tetrahydrofuran, 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: June 25, 1998Date of Patent: August 15, 2000Assignee: AlliedSignal Inc.Inventors: Alagappan Thenappan, Leonard Michael Stachura, Martin Richard Paonessa, Kane David Cook
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Patent number: 6090771Abstract: Aqueous based cleaning compositions simultaneously featuring disinfecting, low residue deposit and good cleaning characteristics are provided. The compositions include one or more quaternary amine compounds as disinfecting active agents, an organic solvent system which includes glycol mono-n-butyl ether or a binary system including a glycol ether with a linear primary alcohol, and either one or more betaines, or one or more amine oxides as a surfactant constituent.Type: GrantFiled: July 26, 1999Date of Patent: July 18, 2000Assignee: Reckitt Benckiser Inc.Inventors: Diane Joyce Burt, Kenneth A. Harrison, Ann Marie Lynch, Jeanne Marie Weller
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Patent number: 6063748Abstract: The invention provides azeotrope-like compositions consisting essentially of R.sub.f OC.sub.2 H.sub.5, where R.sub.f is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and an organic solvent selected from the group consisting of: straight chain, branched chain and cyclic alkanes having 6 to 8 carbon atoms; esters having 4 carbon atoms; ketones having 4 carbon atoms; disiloxanes having 6 carbon atoms; cyclic and acyclic ethers having 4 to 6 carbon atoms; chlorinated alkanes having 3 to 4 carbon atoms and chlorinated alkenes having 2 carbon atoms. The compositions are useful for cleaning, as solvents or carriers for coating and as heat transfer materials.Type: GrantFiled: August 6, 1998Date of Patent: May 16, 2000Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Dean S. Milbrath, John G. Owens, Daniel R. Vitcak, Hideto Yanome
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Patent number: 6048833Abstract: This invention provides a solvent composition comprising 1-bromopropane and a decafluoropentane for use as a cleaning and degreasing solvent. Preferably the decafluoropentane consists essentially of 1,1,1,2,3,4,4,5,5,5-decafluoropentane. The solvent composition optionally includes stabilizers and co-solvents such alcohols, ketones, ethers, acetals, nitroalkanes, epoxides and amines. Specific compositions of 1-bromopropane, 1,1,1,2,3,4,4,5,5,5-decafluoropentane and optional stabilizers provide azeotrope compositions that are particularly well suited as cleaning and degreasing solvents.Type: GrantFiled: July 9, 1998Date of Patent: April 11, 2000Assignee: Great Lakes Chemical CorporationInventor: Richard J. DeGroot
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Patent number: 6048832Abstract: The invention relates to novel azeotrope-like compositions of 1-bromopropane, 4-methoxy-1,1,1,2,2,3,3,4,4-nonafluorobutane (HFE-7100) and at least one organic solvent selected from the group consisting of methanol, ethanol, 2-propanol, 2-methyl-2-propanol, tetrahydrofuran, nitromethane, and methylene chloride 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: June 25, 1998Date of Patent: April 11, 2000Assignee: AlliedSignal Inc.Inventors: Alagappan Thenappan, Leonard Michael Stachura, Martin Richard Paonessa, Kane David Cook, Ian R. Shankland
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Patent number: 6036727Abstract: This invention relates to dry-cleaning systems which include anhydrous dry-cleaning compositions which contain polysulfonic acid, and a bag for the cleaning and containment of soiled fabric articles. In a first embodiment, the dry-cleaning compositions includes organic solvents, polysulfonic acid, and not more than about 10 wt % water. In a second embodiment, the dry-cleaning compositions includes organic solvents and polysulfonic acid, and not more than 1 about wt % water. The invention also relates to methods of using the dry-cleaning system and dry-cleaning composition.Type: GrantFiled: September 29, 1997Date of Patent: March 14, 2000Assignee: Creative Products Resource, Inc.Inventor: James A. Smith
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Patent number: 6030934Abstract: The present invention provides binary azeotropic composition consisting essentially of C.sub.3 F.sub.7 --OCH.sub.3 and a second component selected from the group consisting of an unsubstituted alkane having 5 to 7 carbon atoms, methyl formate, acetone, methanol, 1,1,1,3,3,3-hexafluoro-2-propanol, methylene chloride and trans-1,2-dichloroethylene. The present invention also discloses tertiary azeotropic composition consisting essentially of C.sub.3 F.sub.7 --OCH.sub.3, a second component selected from the group consisting of methanol and 1,1,1,3,3,3-hexafluoro-2-propanol and a third component selected from the group consisting of methylene chloride and trans-1,2-dichloroethylene. The azeotropic composition of this invention may be used in various applications and in particular as refrigerant, in cleaning applications, in heat transfer applications, in coating applications, and the like.Type: GrantFiled: September 24, 1997Date of Patent: February 29, 2000Assignee: 3M Innovative Properties CompanyInventors: John G. Owens, Philip E. Tuma, Hideto Yanome
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Patent number: 6022842Abstract: The invention provides azeotrope-like compositions consisting essentially of R.sub.f OCH.sub.3, where R.sub.Type: GrantFiled: February 11, 1998Date of Patent: February 8, 2000Assignee: 3M Innovative Properties CompanyInventors: John G. Owens, Hideto Yanome
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Patent number: 6020299Abstract: Disclosed is a single phase mixture of about 1 to about 99 wt % of a compound having the general formula ##STR1## where "n" is 1 or 2 and about 0.1 to about 99 wt % of a liquid which can be a perfluoro aliphatic alkane from C.sub.5 to C.sub.8, a perfluoro cycloaliphatic alkane from C.sub.5 to C.sub.8, a perfluoro alkylcycloalkane having 5 to 8 carbon atoms in the ring and 1 or 2 branches of 1 to 3 carbon atoms each, a perfluoro-N-alkylmorpholine from C.sub.5 to C.sub.8, a perfluoro cycloether from C.sub.4 to C.sub.7, or a perfluoro polyether having an average molecular weight from about 400 to about 500.Type: GrantFiled: October 27, 1994Date of Patent: February 1, 2000Assignee: Occidental Chemical CorporationInventors: Hang-Chang Bobby Chen, Mark E. Lindrose
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Patent number: 6013611Abstract: A light duty liquid detergent with desirable cleansing properties and mildness to the human skin comprising: a water soluble nonionic surfactant, an alkali metal or ammonium salt of a C.sub.8-18 ethoxylated alkyl ether sulfate anionic surfactant, a magnesium salt of a sulfonate surfactant, a betaine surfactant and water.Type: GrantFiled: July 2, 1997Date of Patent: January 11, 2000Assignee: Colgate Palmolive CompanyInventors: Barbara Thomas, Gilbert Gomes, Julien Drapier, John Church
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Patent number: 6010995Abstract: A low volatile organic component stable, aqueous cleaning/degreasing composition in the form of a macroemulsion is formulated by combining (a) a nonionic surfactant having certain specified characteristics; (b) an oligomeric or mono/polyfunctional hydrophobe having certain specified characteristics; and (c) water, the nonionic surfactant and hydrophobe being present in a weight ratio of between approximately 10:1 and 1:3 and the composition having a minimum composite score of 60% removal in the soilant marking removal test. Such compositions not only contain no or low amounts of volatile organic compounds but are environmentally safe and non-toxic and exhibit excellent cleaner/degreaser activity exceeding that exhibited by either the nonionic surfactant or hydrophobe component alone at equivalent or equal concentration.Type: GrantFiled: February 5, 1999Date of Patent: January 4, 2000Assignee: Buckeye International, Inc.Inventor: Donald N. Van Eenam
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Patent number: 6010997Abstract: The invention relates to novel compositions of 1-bromopropane, nitromethane or acetonitrile and at least one alcohol selected from the group consisting of ethanol, 2-propanol and 2-methyl-2-propanol 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: June 25, 1998Date of Patent: January 4, 2000Assignee: Alliedsignal Inc.Inventors: Alagappan Thenappan, Leonard Michael Stachura, Martin Richard Paonessa, Kane David Cook
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Patent number: 6008179Abstract: The invention provides azeotrope-like compositions consisting essentially of R.sub.f OCH.sub.3, where R.sub.f is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and one or more organic solvent(s) selected from the group consisting of: straight chain, branched chain and cyclic alkanes containing 6 to 8 carbon atoms; cyclic and acyclic ethers containing 4 to 6 carbon atoms; ketones having 3 carbon atoms; chlorinated alkanes containing 1, 3 or 4 carbon atoms; chlorinated alkenes containing 2 carbon atoms, alcohols containing 1 to 4 carbon atoms, partially fluorinated alcohols containing 2 to 3 carbon atoms, 1-bromopropane, acetonitrile, HCFC 225ca (1,1,-dichloro-2,2,3,3,3-pentafluoropropane and HCFC- 225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane).Type: GrantFiled: September 21, 1998Date of Patent: December 28, 1999Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Dean S. Milbrath, John G. Owens, Daniel R. Vitcak, Hideto Yanome
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Patent number: 5989456Abstract: A solvent composition comprising dichloropentafluoropropane and (perfluorobutyl) methyl ether, wherein the ratios of the dichloropentafluoropropane and the (perfluorobutyl) methyl ether in the solvent composition are from 10 to 50 wt % and from 50 to 90 wt %, respectively.Type: GrantFiled: July 23, 1998Date of Patent: November 23, 1999Assignee: Asahi Glass Company Ltd.Inventor: Masaaki Tsuzaki
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Patent number: 5985810Abstract: A cleaning composition comprising at least one low molecular weight polyorganosiloxane selected from the group consisting of straight chain polydiorganosiloxane represented by a general formula: ##STR1## (wherein R.sup.1 is an organic group of single valence substituted by the same or different group or unsubstituted, and l is an integer from 0 to 5), and cyclic polydiorganosiloxane represented by a general formula: ##STR2## (wherein R.sup.1 is an organic group of single valence substituted by the same or different group or unsubstituted, and m is an integer from 3 to 7). To use it as a water system cleaning agent, polyoxyalkylene group containing polyorganosiloxane, a surfactant, and water are additionally mixed. Accordingly, a cleaning effect free from environmental destruction and contamination, equivalent to flon containing cleaning agents, and satisfactorily stable in terms of dispersion as a water system cleaning agent can be obtained.Type: GrantFiled: June 7, 1995Date of Patent: November 16, 1999Assignee: Toshiba Silicone Co., Ltd.Inventors: Minoru Inada, Kimiaki Kabuki, Yasutaka Imajo, Takayuki Oguni, Noriaki Yagi, Nobuhiro Saitoh, Akitsugu Kurita, Yoshiaki Takezawa
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Patent number: 5977054Abstract: Disclosed are mildly acidic liquid compositions for use in cleaning hard surfaces. The compositions contain from about 1% to about 60% of an amine oxide detergent surfactant, an aqueous carrier liquid, and an acidifying agent having a pK.sub.a of less than about 6.0. The compositions contain enough of the acidifying agent to protonate at least about 10% of the amine oxide species within the compositions and to provide a composition pH of between about 3 and 7. These no-rinse liquid hard surface cleaning compositions have excellent cleaning properties, they do not leave a visible residue when they dry, and they cause minimal or no staining of vinyl surfaces. Also disclosed are a method for cleaning vinyl surfaces using the liquid compositions, and non-liquid compositions from which the mildly acidic liquid compositions can easily be obtained by adding an aqueous liquid.Type: GrantFiled: October 15, 1996Date of Patent: November 2, 1999Assignee: The Procter & Gamble CompanyInventor: Thomas James Wierenga
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Patent number: 5965511Abstract: In order to replace compositions based on CFC or on HCFC in applications for cleaning or drying solid surfaces (in particular defluxing), the invention proposes azeotropic or virtually azeotropic compositions based on 1,1,1,2,3,4,4,5,5,5-decafluoropentane, methylene chloride and optionally methanol.Type: GrantFiled: January 30, 1998Date of Patent: October 12, 1999Assignee: Elf Atochem S. A.Inventors: Pascal Michaud, Jean-Jacques Martin
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Patent number: 5929016Abstract: Aqueous based cleaning compositions simultaneously featuring disinfecting, low residue deposit and good cleaning characteristics are provided. The compositions include one or more quaternary amine compounds as disinfecting active agents, an organic solvent system which includes glycol mono-n-butyl ether or a binary system including a glycol ether with a linear primary alcohol, and either one or more betaines, or one or more amine oxides as a surfactant constituent.Type: GrantFiled: October 15, 1997Date of Patent: July 27, 1999Assignee: Reckitt & Colman Inc.Inventor: Kenneth A. Harrison
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Patent number: 5922662Abstract: A high foaming, light duty, liquid detergent with desirable cleansing properties and mildness to the human skin comprising: a water soluble nonionic surfactant at least one water soluble, foaming, anionic surfactant, a zwitterionic surfactant, an alkyl succinamate and the balance being water.Type: GrantFiled: August 1, 1997Date of Patent: July 13, 1999Assignee: Colgate Palmolive CompanyInventor: Barbara Thomas
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Patent number: 5895504Abstract: Disclosed herein are methods for use of a towelette to clean stains from clothing and upholstery. The towelette is impregnated with a cleaning solution that is primarily water, but also contains a volatile cleaning agent and a surfactant. The pH and surfactant concentrations of the cleaning solution are regulated. The wipe reduces the incidence of readily visible rings around treated stains.Type: GrantFiled: July 9, 1997Date of Patent: April 20, 1999Assignee: S. C. Johnson & Son, Inc.Inventors: John A. Sramek, Thomas A. Strash
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Patent number: 5888250Abstract: A method for dry-cleaning garments which comprises treating them with an azeotropic solvent of propylene glycol tertiary-butyl ether and water.Type: GrantFiled: April 4, 1997Date of Patent: March 30, 1999Assignee: Rynex Holdings Ltd.Inventors: William A. Hayday, Stephen P. Bates
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Patent number: 5888418Abstract: An azeotropic refrigerant particularly useful as a working fluid in chilled water refrigerating systems to be used in possible juxtaposition to sea water comprises at least about 2 mol percent 1,1,2-trifluoroethane (R143) and the balance bis-(difluoromethyl) ether (E134).Type: GrantFiled: March 20, 1992Date of Patent: March 30, 1999Assignee: The United States of America as represented by the Secretary of CommerceInventor: Graham Morrison
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Patent number: 5869439Abstract: A high foaming, light duty, liquid detergent with desirable cleansing properties and mildness to the human skin comprising: a water soluble nonionic surfactant at least one water soluble, foaming, anionic surfactant, a zwitterionic surfactant, an alkyl succinamate and the balance being water.Type: GrantFiled: October 9, 1997Date of Patent: February 9, 1999Assignee: Colgate Palmolive CompanyInventors: Barbara Thomas, Gilbert Gomes
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Patent number: 5854201Abstract: The invention relates to textile softener concentrates based on pentaerythritol and/or dipentaerythritol fatty acid partial esters. The dispersibility of such softener concentrates in cold water can be significantly improved by addition of a special emulsifier combination of quaternary ammonium compounds and nonionic compounds. The quaternary ammonium compounds are quaternized alkoxylated alkylamines and/or esterquats. Ethoxylated and/or propoxylated fatty acids or fatty acid esters and end-capped fatty alcohol polyglycol ethers are suitable nonionic emulsifiers.Type: GrantFiled: July 10, 1997Date of Patent: December 29, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ansgar Behler, Guenther Uphues, Bernd Wahle, Peter Waltenberger, Almud Folge
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Patent number: 5851436Abstract: Compositions of nonafluoromethoxybutane and cyclopentane, nonafluoromethoxybutane and cyclohexane; nonafluoromethoxybutane, cyclopentane and acetone, nonafluoromethoxybutane, cyclohexane and acetone, nonafluoromethoxybutane, trans-1,2-dichloroethylene and cyclopentane; and nonafluoromethoxybutane, trans-1,2-dichloroethylene, cyclopentane and methanol are described. These compositions are useful as cleaning agents, displacement drying agents, refrigerants, heat transfer media, expansion agents for polyolefins and polyurethanes, aerosol propellants, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, and buffing abrasive agents.Type: GrantFiled: May 19, 1997Date of Patent: December 22, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Abid Nazarali Merchant, Barbara Haviland Minor, Shoeb Akberali Moiyadi
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Patent number: 5851435Abstract: Disclosed is a cleaning composition of about 80 to about 99 wt % benzotrifluoride, about 1 to about 20 wt % monohydric alkanol from C.sub.1 to C.sub.4, and up to about 20 wt % of a fluorocarbon having the general formula C.sub.m H.sub.n F.sub.2m+2n, where m is 4 to 8 and n is 1 to m/2 if m is even and (m+1)/2 if m is odd. The composition is useful in cleaning greases, oils, solder fluxes, and other soils.Type: GrantFiled: May 10, 1996Date of Patent: December 22, 1998Assignee: Occidental Chemical CorporationInventors: Hang-Chang Bobby Chen, Edward A. Rowe
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Patent number: 5839311Abstract: In one aspect, this invention provides a lubricating and colling composition for the forming of metals comprising a hydrofluoroether. In another aspect, the present invention provides a method of forming metals comprising applying to the metal and the workpiece a composition comprising a hydrofluoroether.Type: GrantFiled: September 17, 1996Date of Patent: November 24, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mark W. Grenfell, Dean S. Milbrath, Daniel D. Krueger, Richard M. Flynn, Frederick E. Behr
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Patent number: 5834416Abstract: Binary azeotrope and azeotrope-like compositions contain the alkyl esters n-propyl acetate (NPA) and sec-butyl acetate (SBA) respectively, with hexamethyldisiloxane (MM), and are useful for cleaning, rinsing, or drying.Type: GrantFiled: August 19, 1997Date of Patent: November 10, 1998Assignee: Dow Corning CorporationInventors: David Lee Morgan, Dwight Edward Williams
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Patent number: 5834417Abstract: A light duty liquid detergent with desirable cleansing properties and mildness to the human skin comprising: a sulfonate surfactant, an alkali metal or ammonium salt of a C.sub.8-18 ethoxylated alkyl ether sulfate anionic surfactant, an amine oxide surfactant, an ethoxylated monoalkanol amide, a monoalkanol amide, an alkyl polyglucoside surfactant, and water.Type: GrantFiled: June 13, 1996Date of Patent: November 10, 1998Assignee: Colgate Palmolive Co.Inventors: Len Zyzyck, Elizabeth McCandlish
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Patent number: 5827446Abstract: Compositions of nonafluoromethoxybutane and at least one component selected from the group consisting of methanol, ethanol, isopropanol, n-heptane, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene and acetone, and 1,1,1,2,3,4,4,5,5,5-decafluoropentane are described. These compositions are useful as cleaning agents, displacement drying agents, refrigerants, heat transfer media, expansion agents for polyolefins and polyurethanes, aerosol propellants, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, and buffing abrasive agents.Type: GrantFiled: January 15, 1997Date of Patent: October 27, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Abid Nazarali Merchant, Barbara Haviland Minor
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Patent number: 5827812Abstract: The invention provides azeotrope-like compositions consisting essentially of R.sub.f OCH.sub.3, where R.sub.f is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and one or more organic solvent(s) selected from the group consisting of: straight chain, branched chain and cyclic alkanes containing 6 to 8 carbon atoms; cyclic and acyclic ethers containing 4 to 6 carbon atoms; ketones having 3 carbon atoms; chlorinated alkanes containing 1, 3 or 4 carbon atoms; chlorinated alkenes containing 2 carbon atoms, alcohols containing 1 to 4 carbon atoms, partially fluorinated alcohols containing 2 to 3 carbon atoms, 1-bromopropane, acetonitrile, HCFC 225ca (1,1,-dichloro-2,2,3,3,3 pentafluoropropane and HCFC- 225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane).Type: GrantFiled: May 15, 1996Date of Patent: October 27, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Richard M. Flynn, Dean S. Milbrath, John G. Owens, Daniel R. Vitcak, Hideto Yanome
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Patent number: 5824634Abstract: Cleaning compositions comprising an acyclic aliphatic hydrofluorocarbon represented by the formula:C.sub.x H.sub.y F.sub.2x+2-ywhere x equals 4, 5 or 6, y equals 1, 2 or 3 with the proviso that when x equals 4, Y equals 2 or 3, and a co-solvent boiling between 200.degree. C.-105.degree. C. that are alcohols, esters, ethers, ketones, chlorinated hydrocarbons, optionally containing fluorine, having 1-4 carbons atoms, acetonitrile and nitromethane.Type: GrantFiled: July 2, 1996Date of Patent: October 20, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Abid Nazarali Merchant
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Patent number: 5824632Abstract: Binary azeotrope and azeotrope-like compositions contain 1-butoxy-2-propanol, 1-(2-methoxy-1-methylethoxy)-2-propanol, 1-(2-ethoxy-1-methylethoxy)-2-propanol, 1-(2-propoxy-1-methylethoxy)-2-propanol, and 1-(2-methoxy-1-methylethoxy)-2-propanol-acetate, with decamethyltetrasiloxane (MDDM), and are useful for cleaning, rinsing, or drying.Type: GrantFiled: January 28, 1997Date of Patent: October 20, 1998Assignee: Dow Corning CorporationInventors: Ora Ley Flaningam, David Lee Morgan, Dwight Edward Williams
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Patent number: 5817615Abstract: The invention provides an aqueous, hard surface cleaner with significantly improved residue removal and substantially reduced filming/streaking, said cleaner comprising:(a) an effective amount of at least one organic solvent with a vapor pressure of at least 0.001 mm Hg at 25.degree. C., and mixtures of such solvents;(b) an effective amount of at least one semi-polar nonionic surfactant, said surfactant having the structure: ##STR1## wherein R.sup.1 is C.sub.5-20 alkyl, R.sup.2 and R.sup.3 are both C.sub.1-4 alkyl, or --(CH.sub.2).sub.p --OH, although R.sup.2 and R.sup.3 do not have to be equal, and p is 1-6;(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 3, 1996Date of Patent: October 6, 1998Assignee: The Clorox CompanyInventors: Aram Garabedian, Jr., Scott C. Mills, William P. Sibert, Clement K. Choy
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Patent number: 5814595Abstract: The invention provides azeotrope-like compositions consisting essentially of R.sub.f OC.sub.2 H.sub.5, where R.sub.f is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and an organic solvent selected from the group consisting of: straight chain, branched chain and cyclic alkanes having 6 to 8 carbon atoms; esters having 4 carbon atoms; ketones having 4 carbon atoms; disiloxanes having 6 carbon atoms; cyclic and acyclic ethers having 4 to 6 carbon atoms; chlorinated alkanes having 3 to 4 carbon atoms and chlorinated alkenes having 2 carbon atoms. The compositions are useful for cleaning, as solvents or carriers for coating and as heat transfer materials.Type: GrantFiled: May 15, 1996Date of Patent: September 29, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Richard M. Flynn, Dean S. Milbrath, John G. Owens, Daniel R. Vitcak, Hideto Yanome
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Patent number: 5792277Abstract: Stabilized, n-propyl bromide containing cleaning solvent compositions and a cleaning process are provided. The cleaning solvent compositions include an alcohol selected from 1-propanol and 2-butanol, including mixtures thereof, as a co-solvent so as to form azeotropic or azeotropic-like mixtures which have no fire or flash points.Type: GrantFiled: July 23, 1997Date of Patent: August 11, 1998Assignee: Albemarle CorporationInventors: Ronald L. Shubkin, Eric W. Liimatta
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Patent number: 5788886Abstract: The present invention relates to compositions of pentafluoropropane and a fluorinated propane having from 1 to 5 fluorine atoms; a hydrocarbon having from 1 to 5 carbon atoms; 1,1,1,4,4,4-hexafluorobutane, (CF.sub.3).sub.2 CHCH.sub.3, dimethyl ether; or 1,1,1,2,3,4,4,5,5,5-decafluoropentane. The compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.Type: GrantFiled: May 5, 1997Date of Patent: August 4, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Tuneen E. C. Chisolm
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Patent number: 5779931Abstract: 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 C.sub.a F.sub.b H.sub.2a+2-b O.sub.c wherein a=2 or 3 and 3.ltoreq.b.ltoreq.8 and c=1 or 2 and a hydrofluorocarbon of the formula C.sub.n F.sub.m H.sub.2n+2-m wherein 1.ltoreq.n.ltoreq.4 and 1.ltoreq.m.ltoreq.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: GrantFiled: June 9, 1997Date of Patent: July 14, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Diana Lynn Klug, Barbara Haviland Minor, Donna Marie Patron, Tuneen E. C. Chisolm, Allen Capron Sievert
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Patent number: 5772911Abstract: Compositions include compositions of 1,1,2,2,3,3,4,4-octafluorobutane and a hydrocarbon having from 3 to 7 carbon atoms. Specific examples include 1,1,2,2,3,3,4,4-octafluorobutane and butane, cyclopropane, isobutane, propane, cyclopentane, 2,2-dimethylbutane, n-pentane, 2-methylbutane, cyclohexane, 2,3-dimethylpentane, 3-ethylpentane, heptane, hexane or methylcyclopentane. Also included in this invention are compositions of 1,1,2,2,3,3,4,4-octafluorobutane and ethyl formate, propylene oxide, bis(pentafluoroethyl)sulfide, dimethoxyethane or tetrahydrofuran. These compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.Type: GrantFiled: May 7, 1997Date of Patent: June 30, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Allen Capron Sievert
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Patent number: 5773403Abstract: A cleaning and drying solvent is disclosed which has excellent cleaning power and drying property and finds uses as a hand-cleaning agent, a precise cleaning agent and a drying agent for industrial parts. Since it does not contain halogens causing the depletion of the ozone layer, it is available as a solvent replacing freon. The cleaning and drying solvent is composed of a siloxane compound, in particular, hexamethyldisiloxane, an azeotropic or azeotrope-like composition of hexamethyldisiloxane and a lower alcohol, or a mixture of hexamethyldisiloxane and each of ketones, carboxylic esters, low molecular saturated hydrocarbons and low molecular alcohols.Type: GrantFiled: July 20, 1995Date of Patent: June 30, 1998Assignee: Olympus Optical Co., Ltd.Inventors: Masamichi Hijino, Michio Shirai, Kunihiko Uzawa
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Patent number: 5762817Abstract: Azeotropic or azeotrope-like compositions of effective amounts of 1,1,1,2,3,4,4,5,5,5-decafluoropentane, 1,1-dichloroethane and an alcohol such as methanol, ethanol, or isopropanol, to form an azeotropic or azeotrope-like composition are disclosed that are useful as cleaning agents, refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyurethanes and as power cycle working fluids.Type: GrantFiled: February 24, 1997Date of Patent: June 9, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Abid Nazarali Merchant, Barbara Haviland Minor
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Patent number: 5756002Abstract: A cleaning solvent comprising(A) about 3 to about 20 wt % of a fluorinated compound selected from the group consisting of(1) fluorocarbons having the general formulaC.sub.m H.sub.n F.sub.2m+2-nwhere m is 4 to 8, and n is 0 to m/2 if m is even and 0 to (m+1)/2 if m is odd;(2) C.sub.5 F.sub.11 NO;(3) alkyl perfluoroethers having the general formulaR.sub.1 OR.sub.2where R.sub.1 is C.sub.3 F.sub.7 or C.sub.4 F.sub.9 and R.sub.2 is CH.sub.3 or C.sub.2 H.sub.5 ; and(4) fluorochlorocarbons having the general formulaC.sub.p H.sub.q Cl.sub.r F.sub.2p+2-q-rwhere p is 3, 4, or 5, q is 1 to p-1, and r is 1 to p-1;(B) up to about 15 wt % of a C.sub.1 to C.sub.4 alkanol; and(C) the remainder benzotrifluoride.Type: GrantFiled: May 10, 1996Date of Patent: May 26, 1998Assignee: Occidental Chemical CorporationInventors: Hang-Chang Bobby Chen, Edward A. Rowe
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Patent number: 5747435Abstract: Composition useful as 2-in-1 cleansing products are disclosed that are extremely mild to skin and hair, which use neutralized, essentially chargeless, ionic complexes of fatty amines and fatty acids to deliver various levels of conditioning; neutralized, essentially chargeless, ionic complexes of a detersive surfactant comprising a water soluble cationic surfactant and/or polymer complexed with one or more anionic surfactants; or an amphoteric surfactant complexed with one or more anionic surfactants; or a water soluble cationic surfactant and/or polymer complexed with one or more amphoteric surfactants; or a water soluble cationic surfactant and/or polymer complexed with one or more anionic surfactants and an amphoteric surfactant; detersive surfactant-soluble but water-insoluble silicones or derivatives thereof; and water. These products exhibit true 2-in- conditioning properties, and are lower in cost than current 2 in 1 products. Clear or opacified products can be formulated.Type: GrantFiled: July 17, 1996Date of Patent: May 5, 1998Assignee: Colgate-Palmolive CompanyInventor: Amrit M. Patel
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Patent number: 5747437Abstract: To replace compositions based on CFC or CFHC in applications for cleaning solid surfaces (in particular defluxing), the invention proposes azeotropic or quasi-azeotropic compositions based on 1,1,1,2,2,4,4-heptafluorobutane and a C.sub.1 -C.sub.3 alcohol.Type: GrantFiled: October 30, 1996Date of Patent: May 5, 1998Assignee: Elf Atochem S.A.Inventor: Pascal Michaud