Patents by Inventor Rajiv Ratna Singh

Rajiv Ratna 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).

  • FOAMS AND ARTICLES MADE FROM FOAMS CONTAINING HCFO OR HFO BLOWING AGENTS
    Publication number: 20170158834
    Abstract: Polyurethane foams having a polymeric foam structure including a plurality of closed cells therein; and an HFO or HCFO blowing agent, including HCFO-1233zd or HFO-1234ze. In certain aspects, foam premixes, and the resulting foam structures, that include HFCO-1233zd as blowing agent used alone, or in certain aspects, in blend with a co-blowing agent such as methyl formate are disclosed.
    Type: Application
    Filed: February 22, 2017
    Publication date: June 8, 2017
    Inventors: David J. Williams, Rajiv Ratna Singh, James M. Bowman, YiuKeung Ling, Sangiu Qin, Bin Liu, Rongwei Pan
  • COMPOSITIONS CONTAINING DIFLUOROMETHANE AND FLUORINE SUBSTITUTED OLEFINS
    Publication number: 20170137682
    Abstract: Compositions comprising multi-fluorinated olefins and HFC-32 are disclosed. Such compositions are useful particularly for in stationary refrigeration and air conditioning equipment.
    Type: Application
    Filed: January 30, 2017
    Publication date: May 18, 2017
    Inventors: Ryan Hulse, Rajiv Ratna Singh, Justin Becker, Robert Gerard Richard, Rajat S. Basu, Hang T. Pham, Ian Shankland
  • Azeotrope-like compositions of cis-1,1,1,4,4,4-hexafluoro-2-butene
    Patent number: 9592413
    Abstract: This invention relates to azeotrope-like compositions, methods and systems having utility in numerous applications, and in particular, uses for azeotrope-like compositions comprising effective amounts of the compound cis-1,1,1,4,4,4-hexafluoro-2-butene (Z-HFO-1336mzzm), which has the following structure: and another material selected from the group consisting of water, fluoroketones, alcohols, hydrochlorofluoroolefins, and combinations of two or more thereof. These compositions may be used in a wide variety of applications such as, blowing agents, refrigerants, heating agents, power cycle agents, cleaning agents, aerosol propellants, sterilization agents, lubricants, flavor and fragrance extractants, flammability reducing agents, and flame suppression agents.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: March 14, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Ryan Hulse, Rajiv Ratna Singh, Martin R. Paonessa, Martin Cheney, Hang T. Pham, Mary Bogdan, Cliff Gittere
  • AZEOTROPE-LIKE COMPOSITIONS OF CIS-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE
    Publication number: 20170066953
    Abstract: This invention relates to azeotrope-like compositions, methods and systems having utility in numerous applications, and in particular, uses for azeotrope-like compositions comprising effective amounts of the compound cis-1,1,1,4,4,4-hexafluoro-2-butene (Z-HF0-1336mzzm), which has the following structure: and another material selected from the group consisting of water, fluoroketones, alcohols, hydrochlorofluoroolefins, and combinations of two or more thereof. These compositions may be used in a wide variety of applications such as, blowing agents, refrigerants, heating agents, power cycle agents, cleaning agents, aerosol propellants, sterilization agents, lubricants, flavor and fragrance extractants, flammability reducing agents, and flame suppression agents.
    Type: Application
    Filed: November 18, 2016
    Publication date: March 9, 2017
    Inventors: Ryan Hulse, Rajiv Ratna Singh, Martin R. Paonessa, Martin Cheney, Hang T. Pham, Mary Bogdan, Cliff Gittere
  • COMPOSITIONS AND USES OF CIS-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE
    Publication number: 20170009116
    Abstract: This invention relates to compositions, methods and systems having utility in numerous applications, and in particular, uses for compositions containing the compound cis-1,1,1,4,4,4-hexafluoro-2-butene (Z-HFO-1336mzzm), which has the following structure:
    Type: Application
    Filed: July 13, 2016
    Publication date: January 12, 2017
    Inventors: Ryan Hulse, Gary John Zyhowski, Bjorn Hofman, David J. Williams, Gary Knopeck, Robert G. Richard, Rajat Basu, Rajiv Ratna Singh
  • COMPOSITIONS AND METHODS OF FUMIGATION
    Publication number: 20160324151
    Abstract: Fumigation compositions and methods which utilize or comprise cis-1-chloro-3,3,3-trifluoropropene in amounts and under conditions effective to produce a substantial fumigation affect and preferably are essentially free of methyl iodide and/or are essentially free of any compound having a LD50 toxicty of less than about 50 mg/kg (oral, rat).
    Type: Application
    Filed: July 15, 2016
    Publication date: November 10, 2016
    Inventors: Andrew Joseph Poss, Rajiv Ratna Singh, David Nalewajek, Cheryl Cantlon
  • COMPOSITION AND USE OF VINYLIDENE FLUORIDE AND BLENDS THEREOF
    Publication number: 20160244653
    Abstract: The present technology relates to compositional blends that can be used as refrigerants, and more specifically to blends of vinylidene fluoride and at least one other component for use in very low temperature applications. In at least some examples, the second component can be selected from the group consisting of carbon dioxide and pentafluoroethane. Further, the compositions can be azeotropic or azeotrope-like.
    Type: Application
    Filed: May 2, 2016
    Publication date: August 25, 2016
    Inventors: Rajiv Ratna Singh, Ryan Hulse
  • ABSORPTION REFRIGERATION CYCLES USING A LGWP REFRIGERANT
    Publication number: 20160123632
    Abstract: Absorptive refrigeration methods and systems that comprise refrigerant comprising one or more hydrofluoroolefin and/or hydrochlorofluoroolefins, and a solvent or absorbent selected from the group consisting of a polyalkyene glycol oil, a poly alpha olefin oil, a mineral oil and/or a polyolester oil.
    Type: Application
    Filed: January 8, 2016
    Publication date: May 5, 2016
    Inventors: Samuel F. Yana Motta, Mark W. Spatz, Ryan J. Hulse, Rajiv Ratna Singh
  • COMPOSITIONS AND METHODS COMPRISING VINYLIDENE FLUORIDE
    Publication number: 20160017110
    Abstract: This invention relates to compositions and methods which make advantageous use of vinylidene fluoride (CH2?CF2), and in particular embodiments, to heat transfer fluids and heat transfer methods, blowing agents, and thermoplastic foams which utilize vinylidene fluoride (CH2?CF2). Compositions of the present invention include from about 0.1 to about 60 percent, on a weight basis, of a co-agent and from about 99.0 to about 40 percent, on a weight basis, of vinylidene fluoride (CH2?CF2).
    Type: Application
    Filed: March 11, 2014
    Publication date: January 21, 2016
    Inventors: Rajiv Ratna SINGH, David J. WILLIAMS, Robert RICHARD
  • SYSTEMS FOR EFFICIENT HEATING AND/OR COOLING AND HAVING LOW CLIMATE CHANGE IMPACT
    Publication number: 20160017199
    Abstract: The present invention relates, in part, to heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) from about or greater than about 0% to about 15% by weight of HCFO-1233zd; (b) from about 65% to less than about 100% by weight of HFO-1234ze, or HFO-1234yf, or combinations thereof; and (c) from greater than about 0% to about 20% by weight of HFC-125, with the weight percent being based on the total of the components (a)-(c) in the composition.
    Type: Application
    Filed: March 12, 2014
    Publication date: January 21, 2016
    Inventors: Samuel F. YANA MOTTA, Robert G. RICHARD, Mark W. SPATZ, Rajiv Ratna SINGH
  • HIGH PURITY E-1-CHLORO-3,3,3-TRIFLUOROPROPENE AND METHODS OF MAKING THE SAME
    Publication number: 20160002128
    Abstract: The present invention discloses high purity E-1-chloro-3,3,3-trifluoropropene (1233zd(E)) and methods to produce the same. More specifically, the present invention discloses the methods of making 1233zd(E) essentially free of toxic impurities (e.g. 2-chloro-3,3,3-trifluoropropene (1233xf), chlorotetrafluoro-propene (1224), and 3,3,3-trifluoropropyne). The present invention further provides methods for making high purity 1233zd(E) with concentration of 1233xf and 1224 at or below 200 parts per million (ppm) and 3,3,3-trifluoropropyne impurities at or below 20 ppm. Formation of 1233xf impurity can be avoided if pure 1,1,1,3,3-pentachloropropane is used as a starting material. It was also found that formation of 1233xf is avoided if a liquid phase manufacturing process is used.
    Type: Application
    Filed: August 31, 2015
    Publication date: January 7, 2016
    Inventors: Konstantin A. Pokrovski, Rajiv Ratna Singh, Ian Shankland, Hsueh Sung Tung
  • High purity E-1-chloro-3,3,3-trifluoropropene and methods of making the same
    Patent number: 9156752
    Abstract: The present invention discloses high purity E-1-chloro-3,3,3-trifluoropropene (1233zd(E)) and methods to produce the same. More specifically, the present invention discloses the methods of making 1233zd(E) essentially free of toxic impurities (e.g. 2-chloro-3,3,3-trifluoropropene (1233xf), chlorotetrafluoro-propene (1224), and 3,3,3-trifluoropropyne). The present invention further provides methods for making high purity 1233zd(E) with concentration of 1233xf and 1224 at or below 200 parts per million (ppm) and 3,3,3-trifluoropropyne impurities at or below 20 ppm. Formation of 1233xf impurity can be avoided if pure 1,1,1,3,3-pentachloropropane is used as a starting material. It was also found that formation of 1233xf is avoided if a liquid phase manufacturing process is used.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: October 13, 2015
    Assignee: Honeywell International Inc.
    Inventors: Konstantin A. Pokrovski, Rajiv Ratna Singh, Ian Shankland, Hsueh Sung Tung
  • COMPOSITIONS AND METHODS FOR REFRIGERATION
    Publication number: 20150144306
    Abstract: Heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) from about 30% to about 65% by weight of HFC-134a; (b) from about 0% to about 70% by weight of HFO1234ze; and (c) from about 0% to about 70% by weight of HFO-1234yf, provided that the amount of HFO-1234ze and HFO-1234yf in the composition together is at least about 35% by weight, with the weight percent being based on the total of the components (a)-(c) in the composition.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 28, 2015
    Inventors: Samuel F. Yana Motta, Mark W. Spatz, Rajiv Ratna Singh, Robert Gerard Richard, Elizabet del Carmen Vera Becerra, Daniel Burger
  • Compositions and methods for refrigeration
    Patent number: 8974688
    Abstract: Heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) from about 30% to about 65% by weight of HFC-134a; (b) from about 0% to about 70% by weight of HFO1234ze; and (c) from about 0% to about 70% by weight of HFO-1234yf, provided that the amount of HFO-1234ze and HFO-1234yf in the composition together is at least about 35% by weight, with the weight percent being based on the total of the components (a)-(c) in the composition.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: March 10, 2015
    Assignee: Honeywell International Inc.
    Inventors: Samuel F. Yana Motta, Mark W. Spatz, Rajiv Ratna Singh, Robert Gerard Richard, Elizabet del Carmen Vera Becerra, Daniel Burger
  • AZEOTROPE-LIKE COMPOSITIONS OF CIS-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE
    Publication number: 20150018429
    Abstract: This invention relates to azeotrope-like compositions, methods and systems having utility in numerous applications, and in particular, uses for azeotrope-like compositions comprising effective amounts of the compound cis-1,1,1,4,4,4-hexafluoro-2-butene (Z-HFO-1336mzzm), which has the following structure: and another material selected from the group consisting of water, fluoroketones, alcohols, hydrochlorofluoroolefins, and combinations of two or more thereof. These compositions may be used in a wide variety of applications such as, blowing agents, refrigerants, heating agents, power cycle agents, cleaning agents, aerosol propellants, sterilization agents, lubricants, flavor and fragrance extractants, flammability reducing agents, and flame suppression agents.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Ryan Hulse, Rajiv Ratna Singh, Martin R. Paonessa, Martin Cheney, Hang T. Pham, Mary Bogdan, Cliff Gittere
  • Compositions and Use of Vinylidene Fluoride and Blends Thereof
    Publication number: 20140360209
    Abstract: The present technology relates to compositional blends that can be used as refrigerants, and more specifically to blends of vinylidene fluoride and at least one other component for use in very low temperature applications. In at least some examples, the second component can be selected from the group consisting of carbon dioxide and pentafluoroethane. Further, the compositions can be azeotropic or azeotrope-like.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 11, 2014
    Inventors: Rajiv Ratna Singh, Ryan Hulse
  • Process for the production of 1,3,3,3-tetrafluoropropene
    Patent number: 8889924
    Abstract: The present invention provides a simple three step process for the production of 1,3,3,3-tetrafluoropropene (HFO-1234ze). In the first step, carbon tetrachloride is added to vinyl fluoride to afford the compound CCl3CH2CHClF (HCFC-241fb). HCFC-241fb is then fluorinated with anhydrous HF to afford CF3CH2CHClF (HCFC-244fa) in the second step. Dehydrochlorination of HCFC-244fa, in the third step, affords the desired product, CF3CH?CHF (HFO-1234ze). Following similar chemistry, vinyl chloride may be used in place of vinyl fluoride.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: November 18, 2014
    Assignee: Honeywell International Inc.
    Inventors: Haridasan K. Nair, Rajiv Ratna Singh, Andrew Joseph Poss, David Nalewajek
  • Compositions and use of vinylidene fluoride and blends thereof
    Patent number: 8845922
    Abstract: The present technology relates to compositional blends that can be used as refrigerants, and more specifically to blends of vinylidene fluoride and at least one other component for use in very low temperature applications. In at least some examples, the second component can be selected from the group consisting of carbon dioxide and pentafluoroethane. Further, the compositions can be azeotropic or azeotrope-like.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: September 30, 2014
    Assignee: Honeywell International Inc.
    Inventors: Rajiv Ratna Singh, Ryan Hulse
  • Azeotrope-like compositions of cis-1,1,1,4,4,4-hexafluoro-2-butene
    Patent number: 8846754
    Abstract: This invention relates to azeotrope-like compositions, methods and systems having utility in numerous applications, and in particular, uses for azeotrope-like compositions comprising effective amounts of the compound cis-1,1,1,4,4,4-hexafluoro-2-butene (Z-HFO-1336mzzm), which has the following structure: and another material selected from the group consisting of water, fluoroketones, alcohols, hydrochlorofluoroolefins, and combinations of two or more thereof. These compositions may be used in a wide variety of applications such as, blowing agents, refrigerants, heating agents, power cycle agents, cleaning agents, aerosol propellants, sterilization agents, lubricants, flavor and fragrance extractants, flammability reducing agents, and flame suppression agents.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: September 30, 2014
    Assignee: Honeywell International Inc.
    Inventors: Ryan Hulse, Rajiv Ratna Singh, Martin R. Paonessa, Hang T. Pham, Mary Bogdan, Cliff Gittere, Linda L. Cheney
  • Process for making 1,3,3,3-tetrafluoropropene
    Patent number: 8829254
    Abstract: The present invention describes a process for making CF3CH?CHF (HFO-1234ze). The process involves the addition of carbon tetrachloride (CCl4) to 1,2-dichloroethylene to form CCl3CHClCHCl2. The compound CCl3CHClCHCl2 thus can then either be treated with HF to produce CF3CHClCHClF as the main product, or it can be converted to CCl2?CHCHCl2 (1230za) by dechlorination. CCl2?CHCHCl2 can be treated with HF such that the main product obtained is CF3CHClCHClF. CF3CH?CHCl may be produced as a by-product, but upon treatment with HF, it affords the compound CF3CHClCHClF. The desired compound, CF3CH?CHF (HFO-1234ze), is obtained as a trans/cis mixture by dehydrochlorination of CF3CH2CHClF or by dechlorination of CF3CHClCHClF.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: September 9, 2014
    Assignee: Honeywell International Inc.
    Inventors: Haridasan K. Nair, Rajiv Ratna Singh, David Nalewajek, Andrew Joseph Poss