Azeotropic Or Azeotrope-like Composition (e.g., For Defluxing, Etc.) Patents (Class 510/177)
  • Patent number: 11713434
    Abstract: 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: Grant
    Filed: August 13, 2021
    Date of Patent: August 1, 2023
    Assignee: ZYNON TECHNOLOGIES, LLC
    Inventor: Venesia L. Hurtubise
  • Patent number: 11124744
    Abstract: 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: Grant
    Filed: October 22, 2018
    Date of Patent: September 21, 2021
    Assignee: SHELLEF HOLDINGS INC.
    Inventors: Dov Shellef, Edo Shellef
  • Patent number: 10934507
    Abstract: 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: Grant
    Filed: February 4, 2019
    Date of Patent: March 2, 2021
    Assignee: SHELLEF HOLDINGS INC.
    Inventor: Dov Shellef
  • Patent number: 10662134
    Abstract: 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: Grant
    Filed: July 27, 2018
    Date of Patent: May 26, 2020
    Assignee: AGC Inc.
    Inventors: Hiroaki Mitsuoka, Daisuke Ikeda, Toshio Miki, Tsuyoshi Hanada
  • Patent number: 10273437
    Abstract: 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: Grant
    Filed: September 21, 2016
    Date of Patent: April 30, 2019
    Assignee: Illinois Tool Works Inc.
    Inventor: Olga Liliana Vargas
  • Patent number: 9586071
    Abstract: 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: Grant
    Filed: March 10, 2015
    Date of Patent: March 7, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Robert C. Johnson, Hsueh S. Tung, Rajiv R. Singh, Ian Shankland
  • Patent number: 8859477
    Abstract: 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: Grant
    Filed: June 4, 2012
    Date of Patent: October 14, 2014
    Assignee: Wacker Chemie AG
    Inventor: Andreas Koellnberger
  • Patent number: 8845921
    Abstract: 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: Grant
    Filed: March 29, 2010
    Date of Patent: September 30, 2014
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Hang T. Pham, Rajiv R. Singh
  • Publication number: 20140206589
    Abstract: 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: Application
    Filed: March 10, 2014
    Publication date: July 24, 2014
    Inventors: Kane D. Cook, Rajat S. Basu, Ryan Hulse
  • Patent number: 8541634
    Abstract: 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: Grant
    Filed: January 14, 2013
    Date of Patent: September 24, 2013
    Assignee: Honeywell International Inc.
    Inventors: Ryan Hulse, Hang T Pham
  • Patent number: 8519200
    Abstract: 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: Grant
    Filed: February 23, 2012
    Date of Patent: August 27, 2013
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hang T. Pham, Hsueh Sung Tung, Ryan Hulse
  • Patent number: 8518293
    Abstract: 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: Grant
    Filed: September 3, 2010
    Date of Patent: August 27, 2013
    Assignee: Honeywell International Inc.
    Inventors: Ryan Hulse, Hang T. Pham, Rajiv Ratna Singh, Daniel C Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung
  • Patent number: 8420585
    Abstract: 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: Grant
    Filed: June 22, 2012
    Date of Patent: April 16, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • Patent number: 8410039
    Abstract: 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: Grant
    Filed: July 29, 2011
    Date of Patent: April 2, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Joan Ellen Bartelt, Jeffrey P. Knapp
  • Patent number: 8377327
    Abstract: 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: Grant
    Filed: April 13, 2010
    Date of Patent: February 19, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Allen Capron Sievert, Ralph Newton Miller
  • Patent number: 8378158
    Abstract: 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: Grant
    Filed: October 5, 2011
    Date of Patent: February 19, 2013
    Assignee: Honeywell International Inc.
    Inventors: Ryan Hulse, Hang T. Pham
  • Patent number: 8354039
    Abstract: 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: Grant
    Filed: June 6, 2011
    Date of Patent: January 15, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert, Jeffrey P. Knapp
  • Patent number: 8349213
    Abstract: 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: Grant
    Filed: June 6, 2011
    Date of Patent: January 8, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N. Swearingen
  • Patent number: 8314055
    Abstract: 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: Grant
    Filed: July 15, 2009
    Date of Patent: November 20, 2012
    Assignee: Lam Research Corporation
    Inventors: David S. L. Mui, Ji Zhu, Arjun Mendiratta
  • Publication number: 20120264667
    Abstract: 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: Application
    Filed: June 22, 2012
    Publication date: October 18, 2012
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: BARBARA HAVILAND MINOR, MELODIE A. SCHWEITZER
  • Publication number: 20120190604
    Abstract: 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: Application
    Filed: March 30, 2012
    Publication date: July 26, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: MELODIE A. SCHWEITZER, ALLEN CAPRON SIEVERT, JOAN ELLEN BARTELT, BARBARA HAVILAND MINOR
  • Patent number: 8222195
    Abstract: 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: Grant
    Filed: September 20, 2011
    Date of Patent: July 17, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • Patent number: 8163197
    Abstract: 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: Grant
    Filed: March 2, 2011
    Date of Patent: April 24, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
  • Patent number: 8114308
    Abstract: 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: Grant
    Filed: March 30, 2010
    Date of Patent: February 14, 2012
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Hang T. Pham, Ryan Hulse, Rajiv R. Singh, Konstantin A. Pokrovski, Hsueh S. Tung
  • Publication number: 20120010116
    Abstract: 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: Application
    Filed: September 20, 2011
    Publication date: January 12, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • Patent number: 8075803
    Abstract: 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: Grant
    Filed: August 19, 2004
    Date of Patent: December 13, 2011
    Inventor: Roland Kalb
  • Patent number: 8075797
    Abstract: 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: Grant
    Filed: January 25, 2010
    Date of Patent: December 13, 2011
    Assignee: Honeywell International Inc.
    Inventors: Ryan Hulse, Rajiv R. Singh, Hsueh S. Tung, Ian Shankland
  • Patent number: 8044010
    Abstract: 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: Grant
    Filed: March 10, 2011
    Date of Patent: October 25, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • Patent number: 8044015
    Abstract: 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: Grant
    Filed: March 12, 2010
    Date of Patent: October 25, 2011
    Assignee: Honeywell International Inc.
    Inventors: Robert C. Johnson, Hsueh Sung Tung
  • Patent number: 8034251
    Abstract: 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: Grant
    Filed: March 18, 2009
    Date of Patent: October 11, 2011
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsuehsung Tung, Hang T. Pham, Rajiv R. Singh
  • Publication number: 20110175015
    Abstract: 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: Application
    Filed: March 28, 2011
    Publication date: July 21, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Rajat S. Basu, Kane D. Cook, Leslie Bement, Gary M. Knopeck, Rajiv Ratna Singh, Ryan Hulse, Hang Pham
  • Patent number: 7981311
    Abstract: 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: Grant
    Filed: September 5, 2007
    Date of Patent: July 19, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert, Jeffrey P. Knapp
  • Publication number: 20110160113
    Abstract: 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: Application
    Filed: March 10, 2011
    Publication date: June 30, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • Publication number: 20110152152
    Abstract: 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: Application
    Filed: March 2, 2011
    Publication date: June 23, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Melodie A. SCHWEITZER, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
  • Patent number: 7959828
    Abstract: 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: Grant
    Filed: March 1, 2010
    Date of Patent: June 14, 2011
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N Swearingen
  • Patent number: 7927502
    Abstract: 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: Grant
    Filed: July 22, 2010
    Date of Patent: April 19, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • Patent number: 7922930
    Abstract: 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: Grant
    Filed: May 19, 2010
    Date of Patent: April 12, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
  • Patent number: 7923424
    Abstract: 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: Grant
    Filed: February 10, 2006
    Date of Patent: April 12, 2011
    Assignee: Advanced Process Technologies, LLC
    Inventor: Robert J. Small
  • Publication number: 20100286015
    Abstract: 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: Application
    Filed: July 22, 2010
    Publication date: November 11, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: BARBARA HAVILAND MINOR, Melodie A. Schweitzer
  • Patent number: 7820611
    Abstract: 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: Grant
    Filed: July 20, 2005
    Date of Patent: October 26, 2010
    Assignee: Arkema France
    Inventors: Laurent Caron, Jean-Pierre Lallier, Gerard Guilpain
  • Publication number: 20100227786
    Abstract: 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: Application
    Filed: May 19, 2010
    Publication date: September 9, 2010
    Applicant: E . I . DU PONT DE NEMOURS AND COMPANY
    Inventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
  • Patent number: 7786061
    Abstract: 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: Grant
    Filed: October 9, 2009
    Date of Patent: August 31, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • Patent number: 7744774
    Abstract: 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: Grant
    Filed: November 16, 2009
    Date of Patent: June 29, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
  • Patent number: 7737098
    Abstract: 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: Grant
    Filed: July 18, 2005
    Date of Patent: June 15, 2010
    Assignee: Arkema France
    Inventor: Jean-Pierre Lallier
  • Patent number: 7704939
    Abstract: 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: Grant
    Filed: January 25, 2007
    Date of Patent: April 27, 2010
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Kazumitsu Suzuki, Shunichiro Yamaguchi
  • Patent number: 7700004
    Abstract: 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: Grant
    Filed: November 1, 2006
    Date of Patent: April 20, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N. Swearingen
  • Patent number: 7695635
    Abstract: 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: Grant
    Filed: October 27, 2008
    Date of Patent: April 13, 2010
    Assignee: Honeywell International Inc
    Inventors: Rajiv R. Singh, Hang T. Pham, Andrew J. Poss
  • Patent number: 7674756
    Abstract: 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: Grant
    Filed: September 8, 2005
    Date of Patent: March 9, 2010
    Assignee: Honeywell International Inc.
    Inventors: Robert C. Johnson, Hsueh Sung Tung, Rajiv R. Singh, Ian Shankland
  • Publication number: 20100056412
    Abstract: 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: Application
    Filed: November 16, 2009
    Publication date: March 4, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
  • Patent number: 7662764
    Abstract: 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: Grant
    Filed: March 28, 2007
    Date of Patent: February 16, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Michiomi Nagase, Masaaki Tsuzaki