Patents by Inventor Robert D. Lousenberg

Robert D. Lousenberg 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).

  • Patent number: 11731925
    Abstract: Disclosed herein is a process comprising contacting a haloalkane reactant with an olefin in the presence of a catalyst system that consists of metallic iron and a phosphine to produce a haloalkane insertion product, wherein said haloalkane reactant is an alkane substituted with at least one halogen selected from the group consisting of F, Cl, and combinations thereof. Also disclosed herein is a process comprising contacting CF3CCl3 with CH2?CHX in the presence of a catalyst system that consists of metallic iron and a phosphine to make CF3CCl2CH2CHClX, wherein X?F or Cl. Also disclosed are further reactions in a sequence to produce HFO-1336ze and HCFO-1335zd. Also disclosed herein is a new composition comprising the compound CF3CF2CH?CHCl.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: August 22, 2023
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Sheng Peng, Mario Joseph Nappa, Andrew Jackson, Robert D. Lousenberg
  • Patent number: 11661389
    Abstract: An alkoxyvinyl ether is disclosed having the chemical structure RfC(OR)?CHRf?, wherein Rf is an at least partially fluorinated functional group having at least one carbon atom, Rf? is an at least partially fluorinated functional group having at least two carbon atoms, and R is a functional group. A method for preparing an alkoxyvinyl ether is disclosed, comprising RfCFHCFHRf?+KOH/ROH?RfC(OR)?CHRf?, wherein Rf is a perfluoro functional group, Rf? is a perfluoro functional group, and R is an alkyl functional group. Another method for preparing an alkoxyvinyl ether is disclosed, comprising RfCF?CHRf?+KOH/ROH?RfC(OR)?CHRf?, wherein Rf is a perfluoro functional group, Rf? is a perfluoro functional group, and R is an alkyl functional group.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: May 30, 2023
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Viacheslav A Petrov, Mario Joseph Nappa, Robert D Lousenberg, Jonathan P Stehman
  • Publication number: 20210355057
    Abstract: An alkoxyvinyl ether is disclosed having the chemical structure RfC(OR)?CHRf?, wherein Rf is an at least partially fluorinated functional group having at least one carbon atom, Rf? is an at least partially fluorinated functional group having at least two carbon atoms, and R is a functional group. A method for preparing an alkoxyvinyl ether is disclosed, comprising RfCFHCFHRf?+KOH/ROH?RfC(OR)?CHRf?, wherein Rf is a perfluoro functional group, Rf? is a perfluoro functional group, and R is an alkyl functional group. Another method for preparing an alkoxyvinyl ether is disclosed, comprising RfCF?CHRf?+KOH/ROH?RfC(OR)?CHRf?, wherein Rf is a perfluoro functional group, Rf? is a perfluoro functional group, and R is an alkyl functional group.
    Type: Application
    Filed: October 10, 2019
    Publication date: November 18, 2021
    Applicant: The Chemours Company FC, LLC
    Inventors: Viacheslav A PETROV, Mario Joseph NAPP, Robert D LOUSENBERG, Jonathan P STEHMAN
  • Publication number: 20210220780
    Abstract: This invention discloses a thin-film composite thin-film composite membrane that is useful for the separation of solute species in organic solvents and particularly in aggressive, high boiling-point, polar-aprotic solvents such as dimethylsulfoxide, (DMSO), N-Methyl-2-pyrrolidone (NMP), dimethylacetamide (DMAc), dimethylformamide (DMF). Thin-film composite separation performance and durability is greatly enhanced through electrostatic crosslinking of an ionomer selective layer by incorporation of a multi-valent counter-ion. The thin-film composite is resistant to contact with amines and the separation efficiency is tunable by choice of multi-valent counter-ion or through the applied pressure differential across the membrane.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 22, 2021
    Inventors: ROBERT D. LOUSENBERG, EVAN A. SOHODSKI, KENNETH J. PENNISI
  • Publication number: 20190233353
    Abstract: Disclosed herein is a process comprising contacting a haloalkane reactant with an olefin in the presence of a catalyst system that consists of metallic iron and a phosphine to produce a haloalkane insertion product, wherein said haloalkane reactant is an alkane substituted with at least one halogen selected from the group consisting of F, Cl, and combinations thereof. Also disclosed herein is a process comprising contacting CF3CCl3 with CH2?CHX in the presence of a catalyst system that consists of metallic iron and a phosphine to make CF3CCl2CH2CHClX, wherein X?F or Cl. Also disclosed are further reactions in a sequence to produce HFO-1336ze and HCFO-1335zd. Also disclosed herein is a new composition comprising the compound CF3CF2CH?CHCl.
    Type: Application
    Filed: July 24, 2017
    Publication date: August 1, 2019
    Inventors: SHENG PENG, MARIO JOSEPH NAPPA, ANDREW JACKSON, ROBERT D. LOUSENBERG
  • Patent number: 8592630
    Abstract: Disclosed are processes for reacting a perfluorinated olefin with an alcohol, an alkali metal hydroxide, and water in the presence of a phase transfer catalyst to form a reaction product mixture that separates into an aqueous phase and an organic phase. Alcohol may be present in an effective amount sufficient to form a third phase comprising at least 50% of the phase transfer catalyst. The third phase can be separated from the organic phase. Also disclosed are methods for recovering and recycling the phase transfer catalyst used in the reaction.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: November 26, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: Robert D Lousenberg
  • Patent number: 8586804
    Abstract: Disclosed is a process for the dehydrochlorination of 1,1,1,3-tetrachloropropane comprising contacting 1,1,1,3,tetrachloropropane in the vapor phase in a reaction zone with a catalyst comprising iron, to produce a product mixture comprising 1,1,3-trichloro-1-propene; and recovering said 1,1,3-trichloro-1-propene from the product mixture produced. Also disclosed is a process for the dehydrochlorination of 1,1,1,3-tetrachloropropane comprising heating 1,1,1,3-tetrachloropropane in the liquid phase to produce a mixture comprising 1,1,3-trichloro-1-propene, cooling said mixture, separating hydrogen chloride from said mixture and recovering 1,1,3-trichloro-1-propene.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: November 19, 2013
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Robert D. Lousenberg, Andrew Jackson
  • Patent number: 8486295
    Abstract: Disclosed are methods of transferring heat comprising providing a device, using a heat-transfer fluid to transfer heat to or from the device, wherein the heat-transfer fluid compositions comprise at least one unsaturated fluoroether having the formula CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, CF3(CF2)xC(OR)?CFCF2(CF2)yCF3, CF3CF?CFCF(OR)(CF2)x(CF2)yCF3, CF3(CF2)xCF?C(OR)CF2(CF2)yCF3, or mixtures thereof, wherein R can be either CH3, C2H5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=0, 1, 2 or 3.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: July 16, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Joan Ellen Bartelt, Robert D. Lousenberg
  • Patent number: 8399713
    Abstract: Disclosed are compositions comprising a compound having the formula CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, wherein R is CH3 or C2H5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=1, 2 or 3. Also disclosed are unsaturated fluoroethers selected from the group consisting of CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, CF3(CF2)xC(OR)?CFCF2(CF2)yCF3, CF3CF?CFCF(OR)(CF2)x(CF2)yCF3, CF3(CF2)xCF?C(OR)CF2(CF2)yCF3, and mixtures thereof, wherein R can be either CH3, C2H5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=0, 1, 2 or 3. Also disclosed herein are novel methods of using a composition comprising at least one of the compounds described above as novel solvents, carrier fluids, dewatering agents, degreasing solvents or defluxing solvents.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: March 19, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Joan Ellen Bartelt, Robert D. Lousenberg
  • Patent number: 8263817
    Abstract: Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,tetrafluoro-2-chloropropane with a catalyst comprised of chromium (III) oxide, and at least 1% of an alkali metal, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in step (a) above.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 11, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Robert D. Lousenberg, Andrew Jackson
  • Publication number: 20120172638
    Abstract: Disclosed is a process for the manufacture of 2,3,3,3-tetrafluoropropene comprising: (a) contacting 1,1,1,2,tetrafluoro-2-chloropropane with a catalyst comprised of chromium (III) oxide, and at least 1% of an alkali metal, to produce a product mixture comprising 2,3,3,3-tetrafluoropropene; and (b) recovering said 2,3,3,3-tetrafluoropropene from the product mixture produced in step (a) above.
    Type: Application
    Filed: June 30, 2011
    Publication date: July 5, 2012
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Mario Joseph Nappa, Robert D. Lousenberg, Andrew Jackson
  • Publication number: 20120142980
    Abstract: Disclosed is a process for the dehydrochlorination of 1,1,1,3-tetrachloropropane comprising contacting 1,1,1,3,tetrachloropropane in the vapor phase in a reaction zone with a catalyst comprising iron, to produce a product mixture comprising 1,1,3-trichloro-1-propene; and recovering said 1,1,3-trichloro-1-propene from the product mixture produced. Also disclosed is a process for the dehydrochlorination of 1,1,1,3-tetrachloropropane comprising heating 1,1,1,3-tetrachloropropane in the liquid phase to produce a mixture comprising 1,1,3-trichloro-1-propene, cooling said mixture, separating hydrogen chloride from said mixture and recovering 1,1,3-trichloro-1-propene.
    Type: Application
    Filed: October 21, 2011
    Publication date: June 7, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: MARIO JOSEPH NAPPA, ROBERT D. LOUSENBERG, ANDREW JACKSON
  • Publication number: 20120016044
    Abstract: Described is a process to prepare fluoropolymer organic-liquid dispersions containing a homogeneous mixture of reacted and unreacted sulfonyl halide groups. The dispersions are useful in the preparation of crosslinked membranes.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventor: ROBERT D. LOUSENBERG
  • Publication number: 20110282104
    Abstract: Disclosed are compositions comprising a compound having the formula CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, wherein R is CH3 or C2H5or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=1, 2 or 3. Also disclosed are unsaturated fluoroethers selected from the group consisting of CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, CF3(CF2)xC(OR)?CFCF2(CF2)yCF3, CF3CF?CFCF(OR)(CF2)x(CF2)yCF3, CF3(CF2)xCF?C(OR)CF2(CF2)yCF3, and mixtures thereof, wherein R can be either CH3, C2H5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=0, 1, 2 or 3. Also disclosed herein are novel methods of making a composition comprising at least one of the compounds described.
    Type: Application
    Filed: July 21, 2011
    Publication date: November 17, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: JOAN ELLEN BARTELT, Robert D. Lousenberg
  • Patent number: 8058319
    Abstract: Described is a process to prepare fluoropolymer organic-liquid dispersions containing a homogeneous mixture of reacted and unreacted sulfonyl halide groups. The dispersions are useful in the preparation of crosslinked membranes.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: November 15, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Robert D. Lousenberg
  • Publication number: 20100209600
    Abstract: Disclosed are compositions comprising a compound having the formula CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, wherein R is CH3 or C2H5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=1, 2 or 3. Also disclosed are unsaturated fluoroethers selected from the group consisting of CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, CF3(CF2)xC(OR)?CFCF2(CF2)yCF3, CF3CF?CFCF(OR)(CF2)x(CF2)yCF3, CF3(CF2)xCF?C(OR)CF2(CF2)yCF3, and mixtures thereof, wherein R can be either CH3, C2H5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=0, 1, 2 or 3. Also disclosed herein are novel methods of using a composition comprising at least one of the compounds described above as novel solvents, carrier fluids, dewatering agents, degreasing solvents or defluxing solvents.
    Type: Application
    Filed: February 8, 2010
    Publication date: August 19, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: JOAN ELLEN BARTELT, Robert D. Lousenberg
  • Patent number: 6730762
    Abstract: Linear copolymers of fluorocarbon and hydrocarbon monomers. The present invention provides linear copolymers and terpolymers of fluorocarbon and hydrocarbon monomers, and particularly the invention provides a linear copolymers, of fluoromonomers, such as tetrafluoroethylene, chlorotrifluoroethylene, or vinylidene fluoride, with hydrocarbon monomers, such as vinyl acetate, acrylic acid ethyl acetate or tertiary butyl acrylate. The copolymers were synthesized by polymerization by a free radical mechanism in supercritical carbon dioxide and they are linear because of synthesis in carbon dioxide. The copolymer composition was controlled by the monomer feed concentration to have between 7 and 71 mol % TFE. Additionally, new and predominantly linear co- and terpolymers were prepared by hydrolysis and trans-esterification of the latter copolymers. Furthermore, neither surfactants nor dispersing agents are required to produce the linear copolymers, but may be used.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: May 4, 2004
    Inventors: Robert D. Lousenberg, Molly S. Shoichet
  • Publication number: 20030109653
    Abstract: The present invention provides new fluoromonomers having the generic structure: CF2═CF(OCH2CH2)nOR where n is an integer and R is a functional group and methods for producing same. A new method of synthesizing the fluoromonomers is provided. The present invention also relates to new fluoropolymers prepared from any one or combination of the new fluoromonomers and having the generic structure: —[—CF2CF{(OCH2CH2)nOR}—]m— where n is an integer, m is an integer and R represents an unsubstituted or inertly substituted hydrocarbyl group. The method also relates to new copolymers or terpolymers prepared from the new fluoromonomers alone, the new fluoromonomers and existing fluoromonomers or the new fluoromonomers and existing hydrocarbon or functionalized hydrocarbon monomers.
    Type: Application
    Filed: January 2, 2003
    Publication date: June 12, 2003
    Inventors: Molly S. Shoichet, Robert D. Lousenberg
  • Patent number: 6531558
    Abstract: The present invention provides new fluoromonomers having the generic structure: CF2═CF(OCH2CH2)nOR where n is an integer and R is a functional group and methods for producing same. A new method of synthesizing the fluoromonomers is provided. The present invention also relates to new fluoropolymers prepared from any one or combination of the new fluoromonomers and having the generic structure: —[—CF2CF{(OCH2CH2)nOR}—]m— where n is an integer, m is an integer and R represents an unsubstituted or inertly substituted hydrocarbyl group. The method also relates to new copolymers or terpolymers prepared from the new fluoromonomers alone, the new fluoromonomers and existing fluoromonomers or the new fluoromonomers and existing hydrocarbon or functionalized hydrocarbon monomers.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: March 11, 2003
    Inventors: Molly S. Shoichet, Robert D. Lousenberg
  • Publication number: 20030040591
    Abstract: The present invention provides new fluoromonomers having the generic structure: CF2═CF(OCH2CH2)nOR where n is an integer and R is a functional group and methods for producing same. A new method of synthesizing the fluoromonomers is provided. The present invention also relates to new fluoropolymers prepared from any one or combination of the new fluoromonomers and having the generic structure: —[—CF2CF{(OCH2CH2)nOR}—]m— where n is an integer, m is an integer and R represents an unsubstituted or inertly substituted hydrocarbyl group.The method also relates to new copolymers or terpolymers prepared from the new fluoromonomers alone, the new fluoromonomers and existing fluoromonomers or the new fluoromonomers and existing hydrocarbon or functionalized hydrocarbon monomers.
    Type: Application
    Filed: March 23, 1999
    Publication date: February 27, 2003
    Inventors: MOLLY S. SHOICHET, ROBERT D. LOUSENBERG