Patents by Inventor Wissam Rached

Wissam Rached 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).

  • HEAT TRANSFER METHOD
    Publication number: 20160244652
    Abstract: A heat transfer method using ternary compositions containing 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane, said compositions being especially interesting as a heat transfer fluid in compression refrigeration systems comprising exchangers operation in counterflow mode or in split flow mode with counterflow tendency. The use of a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane as heat transfer fluid in compression-type refrigeration systems with exchangers operating in countercurrent mode or in crossed-current mode with countercurrent tendency.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 25, 2016
    Applicant: ARKEMA FRANCE
    Inventor: Wissam RACHED
  • HEAT TRANSFER FLUIDS COMPRISING DIFLUOROMETHANE, PENTAFLUOROETHANE, TETRAFLUOROPROPENE AND OPTIONALLY PROPANE
    Publication number: 20160222272
    Abstract: A composition includes between 11 and 13 wt. % of difluoromethane; between 58 and 62 wt. % of pentafluoroethane; between 18 and 29 wt. % of tetrafluoropropene; and between 0 and 7 wt. % of propane. The tetrafluoropropene can be 1,3,3,3-tetrafluoropropene or 2,3,3,3-tetrafluoropropene. The composition can be used as a heat transfer fluid in a vapour compression circuit.
    Type: Application
    Filed: September 2, 2014
    Publication date: August 4, 2016
    Applicant: ARKEMA FRANCE
    Inventor: Wissam RACHED
  • Use of ternary compositions
    Patent number: 9399726
    Abstract: The use of a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane, as a heat-transfer fluid, in compression refrigeration systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency. A heat-transfer process in which a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane is used as a refrigerant in compression systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: July 26, 2016
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • HEAT-TRANSFER COMPOSITIONS EXHIBITING IMPROVED MISCIBILITY WITH THE LUBRICATING OIL
    Publication number: 20160194541
    Abstract: The use of 1,1,1,2-tetrafluoroethane for increasing the miscibility of 2,3,3,3-tetrafluoropropene with a lubricating oil, and in particular with a polyalkylene glycol oil. Further included are heat-transfer compositions and also equipment and processes using these compositions. Also, a kit including a heat-transfer fluid including 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoroethane, and a lubricant oil including a polyalkylene glycol, for use in a heat-transfer installation including a vapor compression circuit.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Applicant: ARKEMA FRANCE
    Inventors: Sophie GUERIN, Laurent ABBAS, Wissam RACHED
  • Compositions of 2,4,4,4-tetrafluorobut-1-ene and cis-1,1,1,4,4,4-hexafluorobut-2-ene
    Patent number: 9359541
    Abstract: A composition including 2,4,4,4-10-tetrafluorobut-1-ene and cis-1,1,1,4,4,4-hexafluorobut-2-ene, and also the use thereof in particular as a heat transfer fluid. The composition may include: from 1% to 99% of 2,4,4,4-tetrafluorobut-1-ene and from 1% to 99% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 5% to 70% of 2,4,4,4-tetrafluorobut-1-ene and from 30% to 95% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 20% to 65% of 2,4,4,4-tetrafluorobut-1-ene and from 35% to 80% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 25% to 60% of 2,4,4,4-tetrafluorobut-1-ene and from 40% to 75% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 28% to 51% of 2,4,4,4-tetrafluorobut-1-ene and from 49% to 72% of cis-1,1,1,4,4,4-hexafluorobut-2-ene.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: June 7, 2016
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • Ternary heat-transfer fluids comprising difluoromethane, pentafluoroethane and tetrafluoropropene
    Patent number: 9359540
    Abstract: A ternary composition including: from 5 to 50% of difluoromethane; from 2 to 20% of pentafluoroethane; and from 30 to 90% of tetrafluoropropene. The tetrafluoropropene may be 1,3,3,3-tetrafluoropropene or 2,3,3,3-tetrafluoropropene. This composition can be used as a heat-transfer fluid in vapor compression circuit. A process for heating or cooling a fluid or a body using a vapor compression circuit containing a heat transfer fluid, said process successively including evaporation of the heat transfer fluid, compression of the heat transfer fluid, condensation of the heat fluid and depressurization of the heat transfer fluid, in which the heat transfer fluid is a composition as described.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: June 7, 2016
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • TERNARY COMPOSITIONS FOR HIGH-CAPACITY REFRIGERATION
    Publication number: 20160122609
    Abstract: Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions of between 15 and 50 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 40 wt. % of HFC-134a and between 45 and 60 wt. %, preferably between 45 and 50 wt. %, of HFC-32.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Applicant: ARKEMA FRANCE
    Inventor: Wissam RACHED
  • REFRIGERANTS CONTAINING (E)-1,1,1,4,4,4-HEXAFLUOROBUT-2-ENE
    Publication number: 20160115362
    Abstract: A composition including (E)-1,1,1,4,4,4-hexafluorobat-2-ene as a mixture with at least one hydrocarbon, hydrofluorocarbon or fluoroolefin compound having a boiling point less than or equal to ?12° C., and also to the use of this composition as a heat transfer fluid. A process for reducing the environmental impact of heat-transfer equipment including a vapor compression circuit containing an initial heat-transfer fluid, said process comprising a step replacing the initial heat-transfer fluid in the vapor compression circuit with a final heat-transfer fluid, the final heat-transfer fluid having a GWP which is lower than the initial heat-transfer fluid, wherein the final heat-transfer fluid is the above composition.
    Type: Application
    Filed: January 7, 2016
    Publication date: April 28, 2016
    Applicant: ARKEMA FRANCE
    Inventor: Wissam RACHED
  • HEAT TRANSFER PROCESS
    Publication number: 20160115827
    Abstract: The use of a refrigerant in organic Rankine cycle systems including at least one hydrofluoroolefin, having at least four carbon atoms represented by the formula (I) R1CH?CHR2 in which R1 and R2 independently represent alkyl groups having from 1 to 6 carbon atoms, substituted with at least one fluorine atom, optionally with at least one chlorine atom.
    Type: Application
    Filed: January 6, 2016
    Publication date: April 28, 2016
    Applicant: ARKEMA FRANCE
    Inventor: Wissam RACHED
  • Heat-transfer compositions exhibiting improved miscibility with the lubricating oil
    Patent number: 9315708
    Abstract: The invention relates to the use of 1,1,1,2-tetrafluoroethane for increasing the miscibility of 2,3,3,3-tetrafluoropropene with a lubricating oil, and in particular with a polyalkylene glycol oil. In this regard, the invention provides heat-transfer compositions and also equipment and processes using these compositions.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: April 19, 2016
    Assignee: ARKEMA FRANCE
    Inventors: Sophie Guerin, Laurent Abbas, Wissam Rached
  • Heat transfer process
    Patent number: 9279074
    Abstract: The present invention relates to the use of a refrigerant in organic Rankine cycle systems comprising at least one hydrofluoroolefin, having at least four carbon atoms represented by the formula (I) R1CH?CHR2 in which R1 and R2 independently represent alkyl groups having from 1 to 6 carbon atoms, substituted with at least one fluorine atom, optionally with at least one chlorine atom.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: March 8, 2016
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • Refrigerants containing (E)-1,1,1,4,4,4-hexafluorobut-2-ene
    Patent number: 9267066
    Abstract: The invention relates to a composition comprising (E)-1,1,1,4,4,4-hexafluorobat-2-ene as a mixture with at least one hydrocarbon, hydrofinorocarbon or fluoroolefin compound having a boiling point less than or equal to ?12° C., and also to the use of this composition as a heat transfer fluid.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: February 23, 2016
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • Ternary compositions for high-capacity refrigeration
    Patent number: 9267064
    Abstract: The invention relates to compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. The invention specifically relates to compositions essentially containing between 15 and 50 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 40 wt. % of HFC-134a and between 45 and 60 wt. %, preferably between 45 and 50 wt. %, of HFC-32.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: February 23, 2016
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • TERNARY COMPOSITIONS FOR LOW-CAPACITY REFRIGERATION
    Publication number: 20160024363
    Abstract: Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions essentially containing between 10 and 90 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 80 wt. % of HFC-134a and between 5 and 10 wt. % of HFC-32. Compositions essentially containing from 10 to 45% by weight of 2,3,3,3-tetrafluoropropene, from 50 to 80% by weight of HFC-134a and from 5 to 10% by weight of HFC-32.
    Type: Application
    Filed: October 2, 2015
    Publication date: January 28, 2016
    Applicant: ARKEMA FRANCE
    Inventor: Wissam RACHED
  • HEAT TRANSFER FLUID
    Publication number: 20160025394
    Abstract: Compositions which are based on tetrafluoropropene and more particularly relates to compositions including 60% to 90% by weight of 2,3,3,3-tetrafluoropropene and 10% to 40% by weight of at least one compound selected from difluoroethane and difluoromethane, which can be used as a heat transfer fluid. The compositions may include 60% to 79% by weight of 2,3,3,3-tetrafluoropropene and 21% to 40% by weight of a compound selected from difluoroethane and difluoromethane.
    Type: Application
    Filed: October 2, 2015
    Publication date: January 28, 2016
    Applicant: ARKEMA FRANCE
    Inventor: Wissam RACHED
  • COMPOSITIONS OF CHLORO-TRIFLUOROPROPENE AND HEXAFLUOROBUTENE
    Publication number: 20160009973
    Abstract: Provided are compositions, preferably azeotrope or azeotrope-like compositions including 1,1,1,4,4,4-hexafluoro-2-butene and chlorotrifluoropropene, particularly 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and uses thereof of the compositions. The composition may be a heat transfer composition. The composition may be a blowing agent composition. The composition may be a solvent composition. The composition may be a sprayable composition.
    Type: Application
    Filed: September 22, 2015
    Publication date: January 14, 2016
    Applicant: ARKEMA FRANCE
    Inventors: Wissam RACHED, Laurent ABBAS, Jean-Christophe BOUTIER
  • COMPOSITIONS OF 2,4,4,4-TETRAFLUOROBUT-1-ENE AND CIS-1,1,1,4,4,4-HEXAFLUOROBUT-2-ENE
    Publication number: 20150376485
    Abstract: A composition including 2,4,4,4-10-tetrafluorobut-1-ene and cis-1,1,1,4,4,4-hexafluorobut-2-ene, and also the use thereof in particular as a heat transfer fluid. The composition may include: from 1% to 99% of 2,4,4,4-tetrafluorobut-1-ene and from 1% to 99% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 5% to 70% of 2,4,4,4-tetrafluorobut-1-ene and from 30% to 95% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 20% to 65% of 2,4,4,4-tetrafluorobut-1-ene and from 35% to 80% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 25% to 60% of 2,4,4,4-tetrafluorobut-1-ene and from 40% to 75% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 28% to 51% of 2,4,4,4-tetrafluorobut-1-ene and from 49% to 72% of cis-1,1,1,4,4,4-hexafluorobut-2-ene.
    Type: Application
    Filed: September 3, 2015
    Publication date: December 31, 2015
    Applicant: Arkema France
    Inventor: Wissam RACHED
  • BINARY REFRIGERATING FLUID
    Publication number: 20150353802
    Abstract: Binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, and especially to the uses thereof as a heat transfer fluid in compression systems with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. Also, a method of heat transfer in which a binary composition of 2,3,3,3-tetrafluoropropene and difluoromethane is used as refrigerant in compression systems with exchangers in countercurrent mode or in crossed-current mode with countercurrent tendency.
    Type: Application
    Filed: August 19, 2015
    Publication date: December 10, 2015
    Applicant: ARKEMA FRANCE
    Inventor: Wissam RACHED
  • USE OF TERNARY COMPOSITIONS
    Publication number: 20150344761
    Abstract: The use of a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane, as a heat-transfer fluid, in compression refrigeration systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency. A heat-transfer process in which a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane is used as a refrigerant in compression systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency.
    Type: Application
    Filed: August 11, 2015
    Publication date: December 3, 2015
    Applicant: ARKEMA FRANCE
    Inventor: Wissam RACHED
  • Ternary compositions for low-capacity refrigeration
    Patent number: 9175203
    Abstract: Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions essentially containing between 10 and 90 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 80 wt. % of HFC-134a and between 5 and 10 wt. % of HFC-32. Compositions essentially containing from 10 to 45% by weight of 2,3,3,3-tetrafluoropropene, from 50 to 80% by weight of HFC-134a and from 5 to 10% by weight of HFC-32.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: November 3, 2015
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached