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).
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Patent number: 11731925Abstract: 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: GrantFiled: July 24, 2017Date of Patent: August 22, 2023Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Sheng Peng, Mario Joseph Nappa, Andrew Jackson, Robert D. Lousenberg
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Patent number: 11661389Abstract: 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: GrantFiled: October 10, 2019Date of Patent: May 30, 2023Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Viacheslav A Petrov, Mario Joseph Nappa, Robert D Lousenberg, Jonathan P Stehman
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Publication number: 20210355057Abstract: 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: ApplicationFiled: October 10, 2019Publication date: November 18, 2021Applicant: The Chemours Company FC, LLCInventors: Viacheslav A PETROV, Mario Joseph NAPP, Robert D LOUSENBERG, Jonathan P STEHMAN
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Publication number: 20210220780Abstract: 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: ApplicationFiled: January 14, 2019Publication date: July 22, 2021Inventors: ROBERT D. LOUSENBERG, EVAN A. SOHODSKI, KENNETH J. PENNISI
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Publication number: 20190233353Abstract: 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: ApplicationFiled: July 24, 2017Publication date: August 1, 2019Inventors: SHENG PENG, MARIO JOSEPH NAPPA, ANDREW JACKSON, ROBERT D. LOUSENBERG
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Patent number: 8592630Abstract: 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: GrantFiled: September 26, 2012Date of Patent: November 26, 2013Assignee: E I du Pont de Nemours and CompanyInventor: Robert D Lousenberg
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Patent number: 8586804Abstract: 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: GrantFiled: October 21, 2011Date of Patent: November 19, 2013Assignee: E. I. du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Robert D. Lousenberg, Andrew Jackson
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Patent number: 8486295Abstract: 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: GrantFiled: June 28, 2011Date of Patent: July 16, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Joan Ellen Bartelt, Robert D. Lousenberg
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Patent number: 8399713Abstract: 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: GrantFiled: February 8, 2010Date of Patent: March 19, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Joan Ellen Bartelt, Robert D. Lousenberg
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Patent number: 8263817Abstract: 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: GrantFiled: June 30, 2011Date of Patent: September 11, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Robert D. Lousenberg, Andrew Jackson
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Publication number: 20120172638Abstract: 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: ApplicationFiled: June 30, 2011Publication date: July 5, 2012Applicant: E. I. DUPONT DE NEMOURS AND COMPANYInventors: Mario Joseph Nappa, Robert D. Lousenberg, Andrew Jackson
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Publication number: 20120142980Abstract: 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: ApplicationFiled: October 21, 2011Publication date: June 7, 2012Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: MARIO JOSEPH NAPPA, ROBERT D. LOUSENBERG, ANDREW JACKSON
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Publication number: 20120016044Abstract: 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: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: ROBERT D. LOUSENBERG
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Publication number: 20110282104Abstract: 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: ApplicationFiled: July 21, 2011Publication date: November 17, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: JOAN ELLEN BARTELT, Robert D. Lousenberg
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Patent number: 8058319Abstract: 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: GrantFiled: May 18, 2007Date of Patent: November 15, 2011Assignee: E.I. du Pont de Nemours and CompanyInventor: Robert D. Lousenberg
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Publication number: 20100209600Abstract: 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: ApplicationFiled: February 8, 2010Publication date: August 19, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: JOAN ELLEN BARTELT, Robert D. Lousenberg
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Patent number: 6730762Abstract: 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: GrantFiled: February 2, 2001Date of Patent: May 4, 2004Inventors: Robert D. Lousenberg, Molly S. Shoichet
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Publication number: 20030109653Abstract: 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: ApplicationFiled: January 2, 2003Publication date: June 12, 2003Inventors: Molly S. Shoichet, Robert D. Lousenberg
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Patent number: 6531558Abstract: 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: GrantFiled: March 23, 1999Date of Patent: March 11, 2003Inventors: Molly S. Shoichet, Robert D. Lousenberg
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Publication number: 20030040591Abstract: 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: ApplicationFiled: March 23, 1999Publication date: February 27, 2003Inventors: MOLLY S. SHOICHET, ROBERT D. LOUSENBERG