Azeotropic Or Azeotrope-like Composition (e.g., For Defluxing, Etc.) Patents (Class 510/177)
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Patent number: 11713434Abstract: An azeotropic cleaning solvent composition has from about 96 to about 98 weight percent 1,1,1,3,3,3-hexafluoro-2-methoxypropane (“HFMOP”) and from about 2 to about 4 weight percent acetone, for example, about 97 weight percent HFMOP and about 3 weight percent acetone. Another composition of the invention has a weight ratio of HFMOP to acetone of about 24 to about 99, for example, about 24 to 49. Conventional additives such as surfactants, lubricants and co-solvents may be present in an amount not to exceed about 10 weight percent of the composition. A method of the invention comprises contacting an article of manufacture with the solvent composition in order to clean the article of manufacture and then removing the solvent composition from the article of manufacture.Type: GrantFiled: August 13, 2021Date of Patent: August 1, 2023Assignee: ZYNON TECHNOLOGIES, LLCInventor: Venesia L. Hurtubise
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Patent number: 11124744Abstract: Disclosed herein are solvent compositions and methods of using the solvent compositions. The solvent composition includes at least trans-1,2-dichloroethylene (t-DCE) and 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (TFE-TFPE). The solvent composition may also include an oxygenated solvent, such as an alcohol or fluorinated ether. A method of cleaning the surface of an article includes contacting the surface with the solvent composition to dissolve, disperse, or displace a contaminant on the surface, and removing the solvent composition containing the contaminant from the surface.Type: GrantFiled: October 22, 2018Date of Patent: September 21, 2021Assignee: SHELLEF HOLDINGS INC.Inventors: Dov Shellef, Edo Shellef
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Patent number: 10934507Abstract: Disclosed herein are a solvent composition and methods of using the solvent composition. The solvent composition includes at least 80 wt. % of trans-1,2-dichloroetheylene (t-DCE), and 0.1 to 20 wt. % of at least one organic compound. The organic compound may be a hydrocarbon and/or an oxygenated solvent. The solvent composition may be used to clean a surface by contacting the surface with the composition to dissolve a contaminant on the surface. The composition may be used to remove a coating from a surface of a substrate by contacting the surface with the solvent composition to dissolve the coating and removing the composition containing the coating from the surface. The composition may also be used to deposit material on a substrate by dissolving the material in the solvent composition, applying the composition containing the material onto the substrate, and evaporating the composition from the substrate.Type: GrantFiled: February 4, 2019Date of Patent: March 2, 2021Assignee: SHELLEF HOLDINGS INC.Inventor: Dov Shellef
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Patent number: 10662134Abstract: There are provided a solvent composition containing tDCE, which does not exert an adverse effect on the global environment, has high solubility and incombustibility, and can maintain initial incombustibility even in use accompanied by a phase change, a cleaning method using the solvent composition, a coating film-forming composition including the solvent composition, and a method of forming a homogeneous coating film using the coating film-forming composition. A solvent composition includes: tDCE; at least one HFE (A) selected from HFE-347pc-f, HFE-365mf-c, and HFE-467sc-f; and at least one HFC (X) selected from cHFC-447, and HFC-76-13sf, in which a ratio of tDCE with respect to a total amount of tDCE, HFE (A), and HFC (X) is 65 to 80 mass %, a ratio of HFE (A) with respect to the total amount is 5 to 25 mass %, and a ratio of HFC (X) with respect to the total amount is 5 to 25 mass %.Type: GrantFiled: July 27, 2018Date of Patent: May 26, 2020Assignee: AGC Inc.Inventors: Hiroaki Mitsuoka, Daisuke Ikeda, Toshio Miki, Tsuyoshi Hanada
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Patent number: 10273437Abstract: A solvent composition is provided that includes a chlorinated ethylene present from 75 to 80 total weight percent and at least one halocarbon miscible with the chlorinated ethylene and present in an amount to define a weight ratio of the chlorinated ethylene to said at least one halocarbon of from 75:25-80:20. The solvent composition has a flash point of less than 23 degrees Celsius and an initial boiling point of greater than 35 degrees Celsius. When the solvent is packaged as an aerosol with a propellant, the resulting solvent can be used in confined spaces owing to reduced ignitibility and better human health and environmental properties compared to conventional aerosol degreasers.Type: GrantFiled: September 21, 2016Date of Patent: April 30, 2019Assignee: Illinois Tool Works Inc.Inventor: Olga Liliana Vargas
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Patent number: 9586071Abstract: Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO—HF0-1233, or HF0-1354 having properties highly beneficial in foaming and blowing agent applications, articles and methods.Type: GrantFiled: March 10, 2015Date of Patent: March 7, 2017Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Robert C. Johnson, Hsueh S. Tung, Rajiv R. Singh, Ian Shankland
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Patent number: 8859477Abstract: A composition comprising a phosphonitrile halide and an oligomeric organopolysiloxanes having from 10 to 50 Si units is effective to remove silicone residues from substrates with minimal swelling of thin polymer substrates.Type: GrantFiled: June 4, 2012Date of Patent: October 14, 2014Assignee: Wacker Chemie AGInventor: Andreas Koellnberger
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Patent number: 8845921Abstract: The invention provides a method for separating halocarbons. In particular, a method for separating 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) from 2-chloro-3,3,3-trifluoropropene (HCFC-1233xf) by adding a third component and then separating via conventional distillation. More particularly the invention pertains to a method for separating HCFC-244bb from HCFC-1233xf which are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).Type: GrantFiled: March 29, 2010Date of Patent: September 30, 2014Assignee: Honeywell International Inc.Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Hang T. Pham, Rajiv R. Singh
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Publication number: 20140206589Abstract: The present invention relates, in part, to binary azeotropic compositions and mixtures including chlorotrifluoropropene and petroleum ether and to ternary azeotropic compositions and mixtures including chlorotrifluoropropene, methanol, and a third component selected from isohexane, trans-1,2-dichloroethylene, and petroleum ether. The present invention further relates to ternary azeotropic compositions and mixtures including chlorotrifluoropropene, cyclopentane, and a alcohol selected from methanol, ethanol, and isopropanol.Type: ApplicationFiled: March 10, 2014Publication date: July 24, 2014Inventors: Kane D. Cook, Rajat S. Basu, Ryan Hulse
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Patent number: 8541634Abstract: Disclosed are azeotropic and azeotrope-like mixtures of (Z)-1-chloro-3,3,3-trifluoropropene (1233zd(Z)) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of 1233zd(Z). The latter compound is useful as a nontoxic, zero ozone depleting fluorocarbon useful as a solvent, blowing agent, refrigerant, cleaning agent, aerosol propellant, heat transfer medium, dielectric, fire extinguishing composition and power cycle working fluid.Type: GrantFiled: January 14, 2013Date of Patent: September 24, 2013Assignee: Honeywell International Inc.Inventors: Ryan Hulse, Hang T Pham
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Patent number: 8519200Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of HFC-245fa and HCFO-1233zd.Type: GrantFiled: February 23, 2012Date of Patent: August 27, 2013Assignee: Honeywell International Inc.Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hang T. Pham, Hsueh Sung Tung, Ryan Hulse
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Patent number: 8518293Abstract: The present invention pertains to azeotropic and azeotrope-like compositions of the following three blends: 1. Trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), cis-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)) and hydrogen fluoride (HF); 2. HFO-1234ze(E), 1,1,1,3,3-pentafluoropropane (HFC-245fa) and HF; and 3. HFO-1234ze(Z), HFC-245fa and HF. These azeotropic and azeotrope-like compositions are useful as intermediates in the production of HFO-1234ze(E).Type: GrantFiled: September 3, 2010Date of Patent: August 27, 2013Assignee: Honeywell International Inc.Inventors: Ryan Hulse, Hang T. Pham, Rajiv Ratna Singh, Daniel C Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung
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Patent number: 8420585Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: June 22, 2012Date of Patent: April 16, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Patent number: 8410039Abstract: The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoroheptene ethers and trans-1,2-dichloroethylene. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions.Type: GrantFiled: July 29, 2011Date of Patent: April 2, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Joan Ellen Bartelt, Jeffrey P. Knapp
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Patent number: 8377327Abstract: A process is disclosed for the manufacture of CF3CF?CH2 and CF3CH?CHF. The process involves dehydrofluorinating CF3CHFCH2F in the presence of a dehydrofluorination catalyst to produce a product mixture comprising CF3CF?CH2 and CF3CH?CHF, and recovering said CF3CF?CH2 and CF3CH?CHF from the product mixture. The present invention also provides a composition comprising (a) the Z-isomer of CF3CH?CHF and (b) HF; wherein the HF is present in an effective amount to form an azeotropic combination with the Z—CF3CH?CHF.Type: GrantFiled: April 13, 2010Date of Patent: February 19, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Allen Capron Sievert, Ralph Newton Miller
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Patent number: 8378158Abstract: Disclosed are azeotropic and azeotrope-like mixtures of (Z)-1-chloro-3,3,3-trifluoropropene (1233zd(Z)) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of 1233zd(Z). The latter compound is useful as a nontoxic, zero ozone depleting fluorocarbon useful as a solvent, blowing agent, refrigerant, cleaning agent, aerosol propellant, heat transfer medium, dielectric, fire extinguishing composition and power cycle working fluid.Type: GrantFiled: October 5, 2011Date of Patent: February 19, 2013Assignee: Honeywell International Inc.Inventors: Ryan Hulse, Hang T. Pham
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Patent number: 8354039Abstract: Halocarbons of the structure CF3CF2CH2X, wherein X is either F or Cl or mixtures thereof prepared by: contacting at least one 2-fluorochloropropane with hydrogen fluoride in a first fluorination step in the gas phase or liquid phase under substantially anhydrous conditions, in the absence of added catalyst to partially fluorinate said 2-fluorochloropropane; contacting said partially fluorinated 2-fluorochloropropane with at least the stoichiometric molar equivalent of hydrogen fluoride under substantially anhydrous conditions, in the presence of at least one fluorination catalyst in a second fluorination step; removing said reaction products from contact with said catalyst, and isolating a substantial yield of at least 1,1,1,2,2,3-hexafluoropropane or 1,1,1,2,2, penta-3-chloropropane, or mixtures thereof, respectively.Type: GrantFiled: June 6, 2011Date of Patent: January 15, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert, Jeffrey P. Knapp
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Patent number: 8349213Abstract: This invention relates to cleaning compositions comprising unsaturated fluorinated hydrocarbons. The invention further relates to use of said cleaning compositions in methods to clean, degrease, deflux, dewater, and deposit fluorolubricant. The invention further relates to novel unsaturated fluorinated hydrocarbons and their use as cleaning compositions and in the methods listed above.Type: GrantFiled: June 6, 2011Date of Patent: January 8, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N. Swearingen
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Patent number: 8314055Abstract: The embodiments of the present invention provide improved materials, apparatus, and methods for cleaning wafer surfaces, especially surfaces of patterned wafers (or substrates). The cleaning materials, apparatus, and methods discussed have advantages in cleaning patterned substrates with fine features without substantially damaging the features. The cleaning material includes polymers of one or more polymeric compounds. The cleaning materials can be used in a wide range of viscosity and pH to clean different types of surfaces. The cleaning materials are in liquid phase, and deform around device features to capture the contaminants on the substrate. The polymers entrap the contaminants preventing their return to the substrate surface. The cleaning apparatus is designed to dispense and rinse cleaning materials with a range of viscosities.Type: GrantFiled: July 15, 2009Date of Patent: November 20, 2012Assignee: Lam Research CorporationInventors: David S. L. Mui, Ji Zhu, Arjun Mendiratta
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Publication number: 20120264667Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: ApplicationFiled: June 22, 2012Publication date: October 18, 2012Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: BARBARA HAVILAND MINOR, MELODIE A. SCHWEITZER
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Publication number: 20120190604Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: ApplicationFiled: March 30, 2012Publication date: July 26, 2012Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: MELODIE A. SCHWEITZER, ALLEN CAPRON SIEVERT, JOAN ELLEN BARTELT, BARBARA HAVILAND MINOR
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Patent number: 8222195Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: September 20, 2011Date of Patent: July 17, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Patent number: 8163197Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: March 2, 2011Date of Patent: April 24, 2012Assignee: E.I. du Pont de Nemours and CompanyInventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
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Patent number: 8114308Abstract: Provided are azeotropic and azeotrope-like compositions of 2,3-dichloro-3,3-difluoropropene (HCFO-1232xf) and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).Type: GrantFiled: March 30, 2010Date of Patent: February 14, 2012Assignee: Honeywell International Inc.Inventors: Daniel C. Merkel, Hang T. Pham, Ryan Hulse, Rajiv R. Singh, Konstantin A. Pokrovski, Hsueh S. Tung
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Publication number: 20120010116Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: ApplicationFiled: September 20, 2011Publication date: January 12, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Patent number: 8075803Abstract: The invention relates to a method for producing ionic liquids and ionic solids which takes recourse to a novel, especially modular production process. According to the inventive method, those salts from an ionic carbonate, hydrocarbonate or monoalkyl or monoaryl carbonate precursor (cationic synthesis module) are produced that comprise the desired quaternary ammonium, phosphonium, sulfonium or the analogous quaternary heteroaromatic cation. This precursor can be produced and stored efficiently and with a high degree of purity.Type: GrantFiled: August 19, 2004Date of Patent: December 13, 2011Inventor: Roland Kalb
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Patent number: 8075797Abstract: The invention is directed to a ternary azeotrope-like mixture consisting essentially of effective amounts of 1,1,1,3,3-pentafluoropropane, 1-chloro-3,3,3-trifluoropropene, and hydrogen fluoride.Type: GrantFiled: January 25, 2010Date of Patent: December 13, 2011Assignee: Honeywell International Inc.Inventors: Ryan Hulse, Rajiv R. Singh, Hsueh S. Tung, Ian Shankland
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Patent number: 8044010Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: March 10, 2011Date of Patent: October 25, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Patent number: 8044015Abstract: Disclosed are compositions and systems having utility in numerous situations, including in particular solvent cleaning systems, as well as refrigerant lubricants and/or compatibilizing agents, and to methods which utilize such compositions and systems. More particularly, the present invention in preferred aspects is directed to solvents, blowing agents, heat transfer fluids and compatibilizing agents comprising the compound 3-chloro-1,1,1,6,6,6-hexafluoro-2,4-hexadiene.Type: GrantFiled: March 12, 2010Date of Patent: October 25, 2011Assignee: Honeywell International Inc.Inventors: Robert C. Johnson, Hsueh Sung Tung
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Patent number: 8034251Abstract: Provided are ternary azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb), and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).Type: GrantFiled: March 18, 2009Date of Patent: October 11, 2011Assignee: Honeywell International Inc.Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsuehsung Tung, Hang T. Pham, Rajiv R. Singh
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Publication number: 20110175015Abstract: An azeotrope-like mixture consisting essentially of chlorotrifluoropropene and at least one component selected from the group consisting of pentane, hexane, methanol, and trans-1,2-dichloroethene.Type: ApplicationFiled: March 28, 2011Publication date: July 21, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Rajat S. Basu, Kane D. Cook, Leslie Bement, Gary M. Knopeck, Rajiv Ratna Singh, Ryan Hulse, Hang Pham
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Patent number: 7981311Abstract: Halocarbons of the structure CF3CF2CH2X, wherein X is either F or Cl or mixtures thereof prepared by: contacting at least one 2-fluorochloropropane with hydrogen fluoride in a first fluorination step in the gas phase or liquid phase under substantially anhydrous conditions, in the absence of added catalyst to partially fluorinate said 2-fluorochloropropane; contacting said partially fluorinated 2-fluorochloropropane with at least the stoichiometric molar equivalent of hydrogen fluoride under substantially anhydrous conditions, in the presence of at least one fluorination catalyst in a second fluorination step; removing said reaction products from contact with said catalyst, and isolating a substantial yield of at least 1,1,1,2,2,3-hexafluoropropane or 1,1,1,2,2,penta-3-chloropropane, or mixtures thereof, respectively.Type: GrantFiled: September 5, 2007Date of Patent: July 19, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert, Jeffrey P. Knapp
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Publication number: 20110160113Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: ApplicationFiled: March 10, 2011Publication date: June 30, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Publication number: 20110152152Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: ApplicationFiled: March 2, 2011Publication date: June 23, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Melodie A. SCHWEITZER, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
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Patent number: 7959828Abstract: This invention relates to cleaning compositions comprising unsaturated fluorinated hydrocarbons. The invention further relates to use of said cleaning compositions in methods to clean, degrease, deflux, dewater, and deposit fluorolubricant. The invention further relates to novel unsaturated fluorinated hydrocarbons and their use as cleaning compositions and in the methods listed above.Type: GrantFiled: March 1, 2010Date of Patent: June 14, 2011Assignee: E. I. Du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N Swearingen
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Patent number: 7927502Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: July 22, 2010Date of Patent: April 19, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Patent number: 7922930Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z -C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: May 19, 2010Date of Patent: April 12, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
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Patent number: 7923424Abstract: A method of cleaning a substrate includes contacting a surface of a semiconductor substrate with a composition comprising a superacid. The semiconductor substrate may be a wafer.Type: GrantFiled: February 10, 2006Date of Patent: April 12, 2011Assignee: Advanced Process Technologies, LLCInventor: Robert J. Small
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Publication number: 20100286015Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: ApplicationFiled: July 22, 2010Publication date: November 11, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: BARBARA HAVILAND MINOR, Melodie A. Schweitzer
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Patent number: 7820611Abstract: The present invention relates to a composition based on 1,1,1,3,3-pentafluorobutane (HFC-365 mfc), that can be used in deposition, cleaning, degreasing and drying applications. Its object is also a fluid for cleaning internal heat-transfer systems. The object of the present invention is also a method for dissolving oil and for cleaning.Type: GrantFiled: July 20, 2005Date of Patent: October 26, 2010Assignee: Arkema FranceInventors: Laurent Caron, Jean-Pierre Lallier, Gerard Guilpain
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Publication number: 20100227786Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z-C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: ApplicationFiled: May 19, 2010Publication date: September 9, 2010Applicant: E . I . DU PONT DE NEMOURS AND COMPANYInventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
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Patent number: 7786061Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: October 9, 2009Date of Patent: August 31, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Patent number: 7744774Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: November 16, 2009Date of Patent: June 29, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
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Patent number: 7737098Abstract: The present invention relates to the field of solvents. It relates more particularly to a process for the dissolution of oil at low temperature. Another subject matter of the invention is a novel composition based on 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and on 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee).Type: GrantFiled: July 18, 2005Date of Patent: June 15, 2010Assignee: Arkema FranceInventor: Jean-Pierre Lallier
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Patent number: 7704939Abstract: To provide a surfactant which is obtainable by using substantially no alkali metal, has excellent readhesion prevention ability of finely-pulverized particles at the time of cleaning, and is capable of quite efficient and advanced cleaning. In the present invention, a surfactant which comprises a neutralized salt (AB1) and/or neutralized salt (AB2) is used. Neutralized salt (AB1): a neutralized salt (AB1) which comprises an acidic compound (A1) containing at least each one of an acid group (X1) of an acid having the difference of heat of formation in an acid dissociation reaction (Q1) of 3 to 200 kcal/mol and a hydrophobic group (Y) containing 1 to 36 carbon atoms, and a nitrogen-containing basic compound (B) having the difference of heat of formation in a proton addition reaction of 10 to 152 kcal/mol, wherein (X1) is at least one species selected from a sulfonic acid group, and the like.Type: GrantFiled: January 25, 2007Date of Patent: April 27, 2010Assignee: Sanyo Chemical Industries, Ltd.Inventors: Kazumitsu Suzuki, Shunichiro Yamaguchi
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Patent number: 7700004Abstract: This invention relates to cleaning compositions comprising unsaturated fluorinated hydrocarbons. The invention further relates to use of said cleaning compositions in methods to clean, degrease, deflux, dewater, and deposit fluorolubricant. The invention further relates to novel unsaturated fluorinated hydrocarbons and their use as cleaning compositions and in the methods listed above.Type: GrantFiled: November 1, 2006Date of Patent: April 20, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N. Swearingen
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Patent number: 7695635Abstract: An azeotropic or azeotrope-like composition comprising a mixture of methyl iodide, 1-chloro-3,3,3,-trifluoropropene, and optionally one or more of fluorocarbons and/or hydrofluorocarbons. The compositions are present as a gas, at temperatures of about 30° C. or below. The inventive compositions serve as a non-ozone-depleting gaseous fumigant which is useful in a variety of applications, in place of methyl bromide. These compositions serve as a drop-in replacement for gaseous methyl bromide, providing the benefits of a methyl iodide fumigant while also utilizing existing methyl bromide equipment.Type: GrantFiled: October 27, 2008Date of Patent: April 13, 2010Assignee: Honeywell International IncInventors: Rajiv R. Singh, Hang T. Pham, Andrew J. Poss
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Patent number: 7674756Abstract: Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HFO-1233, or HFO-1354, having properties highly beneficial in solvent cleaning applications.Type: GrantFiled: September 8, 2005Date of Patent: March 9, 2010Assignee: Honeywell International Inc.Inventors: Robert C. Johnson, Hsueh Sung Tung, Rajiv R. Singh, Ian Shankland
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Publication number: 20100056412Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: ApplicationFiled: November 16, 2009Publication date: March 4, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
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Patent number: 7662764Abstract: To provide a solvent composition capable of removing soils such as dusts and oils attached to the surface of an article made of an acrylic resin or an article coated with an acrylic resin, without damaging it. An azeotrope-like solvent composition comprising from 38 to 41 mass % of (2,2,2-trifluoroethoxy)-1,1,2,2-tetrafluoroethane and from 59 to 62 mass % of perfluorohexane. A mixed solvent composition comprising from 30 to 60 mass % of (2,2,2-trifluoroethoxy)-1,1,2,2-tetrafluoroethane and from 40 to 70 mass % of perfluorohexane.Type: GrantFiled: March 28, 2007Date of Patent: February 16, 2010Assignee: Asahi Glass Company, LimitedInventors: Michiomi Nagase, Masaaki Tsuzaki