Patents by Inventor Haridasan K. Nair

Haridasan K. Nair 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).

  • Publication number: 20220235255
    Abstract: Compositions and methods comprising one or more compounds according to Formula I: where R1, R2 and R3 are each independently CxR?(2x+1)?yHy; each R? is independently selected from F or Cl and wherein the value of (2x+1)?y is the total number of R? substituents on the indicated carbon atom(s); each x is independently equal to or greater than 1 and equal to or less than 6; and y is equal to or greater than 0 and less than or equal to 2x+1, provided that the total number of R? present in the compound is 6 or greater, and that the compound has from zero up to two (2) Cl substituents.
    Type: Application
    Filed: January 5, 2022
    Publication date: July 28, 2022
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Sudharshanam Ramanathan, Dimitrios Papanastasiou, Haridasan K. Nair
  • Publication number: 20220219981
    Abstract: A method of removing water from a mixture of iodine (I2) and water includes providing a mixture comprising iodine and water and: contacting the mixture with an adsorbent to selectively adsorb water from the mixture, contacting the mixture with a concentrated acid to absorb water from the mixture, separating the water from mixture by distillation, contacting the mixture with a gas that is inert to iodine (I2), contacting the mixture with hydrogen iodide (HI), or combinations thereof.
    Type: Application
    Filed: January 10, 2022
    Publication date: July 14, 2022
    Inventors: Yuon Chiu, Haiyou Wang, Haluk Kopkalli, Christian Jungong, Haridasan K. Nair, Rajiv Ratna Singh, Daniel C. Merkel, Tao Wang, Terris Yang, Richard Wilcox
  • Publication number: 20220219979
    Abstract: A method of removing water from a mixture of hydrogen iodide (HI) and water includes providing a mixture comprising hydrogen iodide and water and contacting the mixture with an adsorbent to selectively adsorb water from the mixture, contacting the mixture with a weak acid to absorb water from the mixture and/or separating the water from hydrogen iodide (HI) by azeotropic distillation to produce anhydrous hydrogen iodide (HI).
    Type: Application
    Filed: January 10, 2022
    Publication date: July 14, 2022
    Inventors: Yuon Chiu, Haiyou Wang, Haluk Kopkalli, Christian Jungong, Haridasan K. Nair, Rajiv Ratna Singh, Daniel C. Merkel, Tao Wang, Terris Yang, Richard Wilcox
  • Publication number: 20220177394
    Abstract: The present disclosure relates to a method for producing trifluoroiodomethane (CF3I) from iodine (I2) and trifluoroacetic anhydride (TFAA) under photochemical conditions using ultraviolet (UV) light.
    Type: Application
    Filed: December 2, 2021
    Publication date: June 9, 2022
    Inventors: Haiyou Wang, Haridasan K. Nair
  • Publication number: 20220112226
    Abstract: The present disclosure provides a composition including trifluoroacetyl iodide, at least one organic impurity and at least one inorganic impurity. The at least one organic impurity includes at least one of: difluoroiodomethane, pentafluoroiodoethane, iodomethane, iodopropane, dichlorotetrafluoroethane, dichlorotrifluoroethane, trichlorotrifluoroethane, methyltrifluoroacetate, trifluoroacetic anhydride, difluorobutane and methyl propane. The at least one inorganic impurity includes at least one of: hydrogen iodide, hydrogen chloride, iodine and hydrogen triiodide.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 14, 2022
    Inventors: Haiyou Wang, Haridasan K. Nair, Daniel C. Merkel, Selma Bektesevic, Terris Yang
  • Publication number: 20220106430
    Abstract: The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to open-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a sterically hindered amine catalyst.
    Type: Application
    Filed: October 14, 2021
    Publication date: April 7, 2022
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Michael Van Der Puy, David J. Williams, Haridasan K. Nair, David Nalewajek
  • Publication number: 20220073803
    Abstract: The present disclosure provides azeotrope or azeotrope-like compositions including trifluoroiodomethane (CF3I) and trifluoroacetyl chloride (CF3COCl), and a method of forming an azeotrope or azeotrope-like composition comprising the step of combining trifluoroacetyl chloride (CF3COCl) and trifluoroiodomethane (CF3I) to form an azeotrope or azeotrope-like composition.
    Type: Application
    Filed: November 19, 2021
    Publication date: March 10, 2022
    Inventors: Hang T. Pham, Ryan J. Hulse, Rajiv Ratna Singh, Haridasan K. Nair
  • Patent number: 11208582
    Abstract: The present disclosure provides azeotrope or azeotrope-like compositions including trifluoroiodomethane (CF3I) and trifluoroacetyl chloride (CF3COCl), and a method of forming an azeotrope or azeotrope-like composition comprising the step of combining trifluoroacetyl chloride (CF3COCl) and trifluoroiodomethane (CF3I) to form an azeotrope or azeotrope-like composition.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: December 28, 2021
    Assignee: Honeywell International Inc.
    Inventors: Hang T. Pham, Ryan J. Hulse, Rajiv Ratna Singh, Haridasan K. Nair
  • Patent number: 11149105
    Abstract: The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to open-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a sterically hindered amine catalyst.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: October 19, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Michael Van Der Puy, David J. Williams, Haridasan K. Nair, David Nalewajek
  • Publication number: 20210171423
    Abstract: The present disclosure provides a process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and at least one trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, reacting the reactant stream in the presence of a first catalyst at a first reaction temperature from about 25° C. to about 400° C. to produce an intermediate product stream comprising trifluoroacetyl iodide, and reacting the intermediate product stream in the presence of a second catalyst at a second reaction temperature from about 200° C. to about 600° C. to produce a final product stream comprising the trifluoroiodomethane.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 10, 2021
    Inventors: Haridasan K. Nair, Glenn Matthies, Rajiv Ratna Singh, Terris Yang, Haiyou Wang, Ryan J. Hulse, Rajiv Banavali
  • Publication number: 20210095177
    Abstract: Disclosed are compositions comprising at least one iodocarbon compound and preferably at least one stabilization agent. These compositions 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: Application
    Filed: December 9, 2020
    Publication date: April 1, 2021
    Inventors: Rajiv R. Singh, Haridasan K. Nair, Raymond H. Thomas, Lawrence A. Ford, David P. Wilson
  • Patent number: 10954177
    Abstract: The present disclosure provides a process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and at least one trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, reacting the reactant stream in the presence of a first catalyst at a first reaction temperature from about 25° C. to about 400° C. to produce an intermediate product stream comprising trifluoroacetyl iodide, and reacting the intermediate product stream in the presence of a second catalyst at a second reaction temperature from about 200° C. to about 600° C. to produce a final product stream comprising the trifluoroiodomethane.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: March 23, 2021
    Assignee: Honeywell International Inc.
    Inventors: Haridasan K. Nair, Glenn Matthies, Rajiv Ratna Singh, Terris Yang, Haiyou Wang, Ryan J. Hulse, Rajiv Banavali
  • Patent number: 10934233
    Abstract: The present invention relates to a process for the preparation of haloethylenes, and preferably perhaloethylenes, by the gas-phase dechlorination of haloethanes in the presence of a catalyst and optionally in the presence of an alkene or an alkane. In particular aspects, the invention relates to a gas-phase process for preparing chlorotrifluoroethylene (CTFE). More particularly, the present invention relates to a gas-phase process for preparing CTFE from 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) by dechlorination in the presence of an alkene or an alkane and a catalyst.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: March 2, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haridasan K. Nair, Rajiv Ratna Singh, Glenn Matthies
  • Publication number: 20200377366
    Abstract: A process for the manufacture of hydrogen iodide (HI) from hydrogen (H2) and elemental iodine (I2) dissolved in a suitable solvent with use of at least one catalyst selected from the group of platinum, palladium, nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Inventors: Haridasan K. Nair, Ryan J. Hulse
  • Publication number: 20200369933
    Abstract: The present disclosure provides azeotrope or azeotrope-like compositions including trifluoroiodomethane (CF3I) and trifluoroacetyl chloride (CF3COCl), and a method of forming an azeotrope or azeotrope-like composition comprising the step of combining trifluoroacetyl chloride (CF3COCl) and trifluoroiodomethane (CF3I) to form an azeotrope or azeotrope-like composition.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 26, 2020
    Inventors: Hang T. Pham, Ryan J. Hulse, Rajiv Ratna Singh, Haridasan K. Nair
  • Patent number: 10752565
    Abstract: The present disclosure provides a gas-phase process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, and reacting the reactant stream in the presence of a catalyst at a temperature from about 200° C. to about 600° C. to produce a product stream comprising the trifluoroiodomethane.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: August 25, 2020
    Assignee: Honeywell International Inc.
    Inventors: Haridasan K. Nair, Rajiv Banavali, Rajiv Ratna Singh
  • Patent number: 10696613
    Abstract: Disclosed are processes for the dechlorination of haloethanes comprising reacting in the gaseous phase a haloethane and reducing agent such as an alkene, an alkane, hydrogen or combinations of two or more of these, in the presence of a silicon-based catalyst.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: June 30, 2020
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Haridasan K. Nair, Rajiv Ratna Singh, Mark Makar
  • Publication number: 20200062678
    Abstract: The present disclosure provides a gas-phase process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, and reacting the reactant stream in the presence of a catalyst at a temperature from about 200° C. to about 600° C. to produce a product stream comprising the trifluoroiodomethane.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 27, 2020
    Inventors: Haridasan K. Nair, Rajiv Banavali, Rajiv Ratna Singh
  • Publication number: 20200062679
    Abstract: The present disclosure provides a process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and at least one trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, reacting the reactant stream in the presence of a first catalyst at a first reaction temperature from about 25° C. to about 400° C. to produce an intermediate product stream comprising trifluoroacetyl iodide, and reacting the intermediate product stream in the presence of a second catalyst at a second reaction temperature from about 200° C. to about 600° C. to produce a final product stream comprising the trifluoroiodomethane.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 27, 2020
    Inventors: Haridasan K. Nair, Glenn Matthies, Rajiv Ratna Singh, Terris Yang, Haiyou Wang, Ryan J. Hulse, Rajiv Banavali
  • Publication number: 20190315905
    Abstract: The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to open-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a sterically hindered amine catalyst.
    Type: Application
    Filed: October 15, 2018
    Publication date: October 17, 2019
    Inventors: Michael Van Der Puy, David J. Williams, Haridasan K. Nair, David Nalewajek