Patents by Inventor Rajiv R. Singh

Rajiv R. Singh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Compositions containing fluorine substituted olefins
    Patent number: 7534366
    Abstract: The use of pentafluoropropene (HFO-1225) and tetrafluoropropene (HFO-1234) in refrigeration equipment is disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: May 19, 2009
    Assignee: Honeywell International Inc.
    Inventors: Rajiv R. Singh, Hang T. Pham, David P. Wilson, Raymond H. Thomas, Ian Shankland
  • Allyloxytrifluoropropenes
    Patent number: 7531701
    Abstract: A process for the preparation of an allyloxytrifluoropropene derivative of the formula CF3CH?CR1(OCH2CR?CH2) wherein R1 is hydrogen, fluoro, or an allyloxy group represented by the formula —OCH2CR?CH2 wherein R is hydrogen or methyl including contacting (I) a compound represented by the formula CF3CH?CR2R3 wherein R2 is selected from the group consisting of hydrogen, chloro, and fluoro and wherein R3 is chloro or fluoro; and (ii) an allyl alcohol derivative of the formula HOCH2CR?CH2 wherein R is selected from the group consisting of: hydrogen and methyl; wherein the contacting is carried out in the presence of a base and optionally a solvent at a temperature and length of time sufficient to produce the allyloxytrifluoropropene derivative. A process for the preparation of polymers of the allyloxytrifluoropropene derivatives is also provided.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: May 12, 2009
    Assignee: Honeywell International Inc.
    Inventors: Haridasan K. Nair, Rajiv R. Singh, Gregory J. Shafer
  • Azeotrope-like compositions of tetrafluoropropene and hydrofluorocarbons
    Patent number: 7524805
    Abstract: Provided are azeotrope-like compositions comprising tetrafluoropropene and hydrofluorocarbons and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: April 28, 2009
    Assignee: Honeywell International Inc.
    Inventors: Rajiv R. Singh, Hang T. Pham, Gary M. Knopeck, Louis E. Herena, Jeremy N. Diringer
  • Azeotrope-like compositions containing sulfur hexafluoride and uses thereof
    Publication number: 20090095717
    Abstract: Provided are novel azeotrope-like compositions of SF6 and N2O, as well as methods of using the same. Also provided are methods of using SF6 compositions, including azeotrope-like compositions, including a method for suppressing an electric arc or corona discharge and a method for flame suppression. Further provided are electrical devices using such SF6 compositions as a dielectric insulating gas and rigid closed-cell foams having such SF6 compositions within the cells, wherein the foam is both thermally and electrically insulative.
    Type: Application
    Filed: October 12, 2007
    Publication date: April 16, 2009
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Matthew H. Luly, Rajiv R. Singh, Richard R. Robert
  • AZEOTROPE-LIKE COMPOSITIONS OF DIFLUOROMETHANE AND TRIFLUOROIODOMETHANE
    Publication number: 20090092556
    Abstract: Provided are azeotrope-like compositions comprising difluoromethane and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: December 15, 2008
    Publication date: April 9, 2009
    Applicant: Honeywell International Inc.
    Inventors: Rajiv R. Singh, Hang T. Pham, David P. Wilson
  • Method For Producing Fluorinated Organic Compounds
    Publication number: 20090088593
    Abstract: Disclosed is a method for producing fluorinated organic compounds, including petnafluoropropenes, which preferably comprises converting at least one compound of formula (I): CFnXmCFaXbCH2X??(I) to at least one compound of formula (II) CF3CF?CHF??(II) where each X is independently Cl, I or Br; n is 2 or 3; m is 0 or 1, a is 1 or 2, b is 0 or 1, m+n=3 and a+b=2.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Applicant: Honeywell International Inc.
    Inventors: Hsueh Sung Tung, Rajiv R. Singh, Michael Van Der Puy
  • AZEOTROPE-LIKE COMPOSITIONS OF 1-CHLORO-3,3,3-TRIFLUOROPROPENE AND METHYL IODIDE
    Publication number: 20090041677
    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: Application
    Filed: October 27, 2008
    Publication date: February 12, 2009
    Inventors: Rajiv R. Singh, Hang T. Pham, Andrew J. Poss
  • Compositions, Methods and Devices for Control and Clean-Up of Hazardous Spills
    Publication number: 20090022637
    Abstract: Disclosed are methods for treating hazardous materials, such as those which result from an unwanted spill or leak, which comprise one or more of the steps or effects of: neutralizing the dispersed material; solidifying the dispersed material; immobilizing the material; and/or reducing the evolution of harmful or unwanted gaseous forms from the spillage, preferably using a binding agent which comprises a polyacrylate-polyacrylamide cross-linked copolymer.
    Type: Application
    Filed: June 4, 2008
    Publication date: January 22, 2009
    Applicant: Honeywell International Inc.
    Inventors: Rajiv R. Singh, Ian Shankland
  • Azeotrope-like compositions of difluoromethane and trifluoroiodomethane
    Patent number: 7479477
    Abstract: Provided are azeotrope-like compositions comprising difluoromethane and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: January 20, 2009
    Assignee: Honeywell International Inc.
    Inventors: David P. Wilson, Hang T. Pham, Rajiv R. Singh
  • METHOD AND SYSTEM FOR RESTRAINING A CHEMICAL DISCHARGE
    Publication number: 20090005629
    Abstract: A method for restraining a chemical discharge comprising (a) deploying a binding agent into a receptacle containing a hazardous material in a liquid state upon the occurrence of at least one predetermined event that increases the risk of accidentally discharging or leaking the hazardous material from the receptacle; and (b) contacting the hazardous material with the binding agent to form a composition comprising at least a portion of the hazardous material and the binding agent and having at least one property selected from a solid or semisolid state, a viscosity greater than the hazardous material s viscosity at ambient conditions, a vapor pressure lower than the hazardous material s vapor pressure at ambient conditions, and a surface tension greater that the hazardous material s surface tension.
    Type: Application
    Filed: June 4, 2008
    Publication date: January 1, 2009
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Rajiv R. Singh, Ian Shankland, Colleen D. Szuch
  • PROCESS FOR PREPARING A POLYMER FROM ALLYLOXYTRIFLUOROPROPENES
    Publication number: 20080312392
    Abstract: A process for preparing a polymer comprising the step of: polymerizing: (i) an allyloxytrifluoropropene derivative selected from the group consisting of compounds represented by the formula: CF3CH?CH(OCH2CR?CH2); CF3CH?C(OCH2CR?CH2)2; CF3CH?CF(OCH2CR?CH2); and ?any mixtures thereof; wherein R is selected from the group consisting of: hydrogen and methyl; and optionally (ii) an ethylenically unsaturated comonomer; wherein the copolymerizing step is carried out in the presence of a catalyst, under conditions sufficient to produce the copolymer.
    Type: Application
    Filed: August 22, 2008
    Publication date: December 18, 2008
    Inventors: HARIDASAN K. NAIR, Rajiv R. Singh, Gregory J. Shafer
  • AZEOTROPE-LIKE COMPOSITIONS OF TETRAFLUOROPROPENE AND HYDROFLUOROCARBONS
    Publication number: 20080308763
    Abstract: Provided are azeotrope-like compositions comprising tetrafluoropropene and hydrofluorocarbons and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: August 26, 2008
    Publication date: December 18, 2008
    Applicant: Honeywell Internatinal Inc.
    Inventors: Rajiv R. Singh, Hang T. Pham, Gary M. Knopeck, Louis E. Herena, Jeremy N. Diringer
  • Azeotrope-like compositions of difluoromethane and trifluoroiodomethane
    Patent number: 7465698
    Abstract: Provided are azeotrope-like compositions comprising difluoroethane and trifluoroiodomethane, azeotrope-like compositions comprising difluoroethane, tetrafluoropropene and trifluoroiodomethane, and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, aerosol propellants and others.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: December 16, 2008
    Assignee: Honeywell International Inc.
    Inventors: David P. Wilson, Hang T. Pham, Rajiv R. Singh
  • AEROSOL COMPOSITIONS CONTAINING FLUORINE SUBSTITUTED OLEFINS AND METHODS AND SYSTEMS USING SAME
    Publication number: 20080292564
    Abstract: Various compositons, including particularly aerosol compositions, containing fluorinated olefins, including particularly tetra- and penta-fluorpropenes, in a variety of applications are disclosed.
    Type: Application
    Filed: September 4, 2007
    Publication date: November 27, 2008
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv R. Singh, Hang T. Pham, David P. Wilson, Raymond H. Thomas, Mark W. Spatz, David A. Metcalf
  • Azeotrope-like compositions of tetrafluoropropene and alcohols
    Publication number: 20080255260
    Abstract: A composition including an effective amount of trans-1,3,3,3-tetrafluoropropene component combined with an effective amount of an alcohol selected from the group of methanol, ethanol, propanol, isopropanol, tert-butanol, isobutanol, 2-ethyl hexanol and any combination thereof, where the composition has azeotropic properties.
    Type: Application
    Filed: April 16, 2007
    Publication date: October 16, 2008
    Inventors: Jim M. Bowman, David J. Williams, Rajiv R. Singh, Hang T. Pham, Justin L. Becker
  • Working fluids for thermal energy conversion of waste heat from fuel cells using Rankine cycle systems
    Patent number: 7428816
    Abstract: A process for recovering waste heat which comprises: (a) passing a liquid phase working fluid through a heat exchanger in communication with a process which produces the waste heat; (b) removing a vapor phase working fluid from the heat exchanger; (c) passing the vapor phase working fluid to an expander, wherein the waste heat is converted into mechanical energy; and (d) passing the vapor phase working fluid from the expander to a condenser, wherein the vapor phase working fluid is condensed to the liquid phase working fluid. The preferred working fluid is an organic Rankine cycle system working fluid comprising compounds having the following general structure: where x, y, z, and m are each selected from the group consisting of: fluorine, hydrogen, Rf, and R, wherein R and Rf are each an alkyl, aryl, or alkylaryl of 1 to 6 carbon atoms, and wherein Rf is partially or fully fluorinated.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: September 30, 2008
    Assignee: Honeywell International Inc.
    Inventors: Rajiv R Singh, David P Wilson, Gary J Zyhowski, Ryan Hulse
  • Foaming agents, foamable compositions, foams and articles containing fluorine substitued halogens, and methods of making same
    Publication number: 20080207788
    Abstract: Various uses of chloro,fluoroalkenes, particularly (HFCO-1233) in a variety of applications, including as blowing agents are disclosed.
    Type: Application
    Filed: September 26, 2007
    Publication date: August 28, 2008
    Applicant: Honeywell International Inc.
    Inventors: James M. Bowman, David J. Williams, Rajiv R. Singh, Ian Shankland
  • Azeotrope-like compositions of tetrafluoropropenes and bromofluoropropenes
    Publication number: 20080203349
    Abstract: Mixtures of tetrafluoropropenes with bromofluoropropenes provide compositions that have boiling points within an acceptable range, have good chemical stability, low GWP and are essentially non-flammable.
    Type: Application
    Filed: February 27, 2007
    Publication date: August 28, 2008
    Inventors: Rajiv R. Singh, David P. Wilson, Ian Shankland, Hang T. Pham
  • Azeotropic fumigant compositions of methyl iodide
    Publication number: 20080199408
    Abstract: Azeotropic and azeotrope-like compositions of methyl iodide and at least one fluorocarbon or hydrofluorocarbon such as 1,1,1,3,3-pentafluoropropane (HFC-245fa). 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: Application
    Filed: February 16, 2007
    Publication date: August 21, 2008
    Inventors: Andrew J. Poss, Rajiv R. Singh, Hang T. Pham
  • Azeotrope-like trifluoroiodomethane compositions
    Patent number: 7413674
    Abstract: Provided are azeotrope-like compositions comprising difluoroethane and trifluoroiodomethane, azeotrope-like compositions comprising difluoroethane, tetrafluoropropene and trifluoroiodomethane, and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: August 19, 2008
    Assignee: Honeywell International Inc.
    Inventors: Rajiv R. Singh, David P. Wilson, Hang T. Pham