Patents by Inventor Allen Capron Sievert
Allen Capron Sievert 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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Publication number: 20240076536Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.Type: ApplicationFiled: November 10, 2023Publication date: March 7, 2024Applicant: THE CHEMOURS COMPANY FC, LLCInventors: VELLIYUR NOTT MALLIKARJUNA RAO, MARIO JOSEPH NAPPA, ALLEN CAPRON SIEVERT
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Patent number: 11912923Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.Type: GrantFiled: June 6, 2023Date of Patent: February 27, 2024Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Allen Capron Sievert
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Patent number: 11912639Abstract: Processes for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene and intermediates for producing same. A process for producing 2-chloro-1,1,1,4,4,4-hexafluorobutane comprises contacting 1,1,2,4,4-pentachlorobuta-1,3-diene with HF in the liquid phase in the presence of a fluorination catalyst. A process for producing 2,2-dichloro-1,1,1,4,4,4-hexafluorobutane comprises contacting 2-chloro-1,1,1,4,4,4-hexafluorobutane with a chlorine source. A process for producing 1,1,1,4,4,4-hexafluoro-2-butyne comprises contacting 2,2-dichloro-1,1,1,4,4,4-hexafluorobutane with a base. A process for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene comprises contacting 1,1,1,4,4,4-hexafluoro-2-butyne with hydrogen.Type: GrantFiled: April 3, 2020Date of Patent: February 27, 2024Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Sheng Peng, Allen Capron Sievert
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Publication number: 20230313012Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.Type: ApplicationFiled: June 6, 2023Publication date: October 5, 2023Applicant: THE CHEMOURS COMPANY FC, LLCInventors: VELLIYUR NOTT MALLIKARJUNA RAO, MARIO JOSEPH NAPPA, ALLEN CAPRON SIEVERT
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Patent number: 11708516Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.Type: GrantFiled: June 2, 2021Date of Patent: July 25, 2023Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Allen Capron Sievert
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Publication number: 20220194882Abstract: Processes for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene and intermediates for producing same. A process for producing 2-chloro-1,1,1,4,4,4-hexafluorobutane comprises contacting 1,1,2,4,4-pentachlorobuta-1,3-diene with HF in the liquid phases. A process for producing E-1,1,1,4,4,4-hexafluorobut-2-ene comprises contacting 2-chloro-1,1,1,4,4,4-hexafluorobutane with base. A process for producing 2,3-dichloro-1,1,1,4,4,4-hexafluorobutane comprises contacting E-1,1,1,4,4,4-hexafluorobut-2-ene with a chlorine source. A process for producing 1,1,1,4,4,4-hexafluoro-2-butyne comprises contacting 2,3-dichloro-1,1,1,4,4,4-hexafluorobutane with a base. A process for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene comprises contacting 1,1,1,4,4,4-hexafluoro-2-butyne with hydrogen and a catalyst.Type: ApplicationFiled: April 3, 2020Publication date: June 23, 2022Applicant: THE CHEMOURS COMPANY FC, LLCInventors: SHENG PENG, ALLEN CAPRON SIEVERT
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Publication number: 20220194881Abstract: A process for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene comprises contacting 1,1,2,4,4-pentachlorobuta-1,3-diene with hydrogen fluoride in the vapor phase in the presence of a fluorination catalyst comprising a metal halide to produce E- and Z-1,1,1,4,4,4-hexafluoro-2-chloro-2-butene. A process for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene further comprises contacting E- and Z-1,1,1,4,4,4-hexafluoro-2-chloro-2-butene with base to produce 1,1,1,4,4,4-hexafluoro-2-butyne, and subsequently hydrogenating hexafluoro-2-butyne to produce Z-1,1,1,4,4,4-hexafluoro-2-butene.Type: ApplicationFiled: April 3, 2020Publication date: June 23, 2022Applicant: THE CHEMOURS COMPANY FC, LLCInventors: SHENG PENG, ALLEN CAPRON SIEVERT
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Publication number: 20220194879Abstract: Processes for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene and intermediates for producing same. A process for producing 2-chloro-1,1,1,4,4,4-hexafluorobutane comprises contacting 1,1,2,4,4-pentachlorobuta-1,3-diene with HF in the liquid phase in the presence of a fluorination catalyst. A process for producing 2,2-dichloro-1,1,1,4,4,4-hexafluorobutane comprises contacting 2-chloro-1,1,1,4,4,4-hexafluorobutane with a chlorine source. A process for producing 1,1,1,4,4,4-hexafluoro-2-butyne comprises contacting 2,2-dichloro-1,1,1,4,4,4-hexafluorobutane with a base. A process for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene comprises contacting 1,1,1,4,4,4-hexafluoro-2-butyne with hydrogen.Type: ApplicationFiled: April 3, 2020Publication date: June 23, 2022Applicant: THE CHEMOURS COMPANY FC, LLCInventors: SHENG PENG, ALLEN CAPRON SIEVERT
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Publication number: 20220162141Abstract: A process for producing E-1,1,1,4,4,4-hexafluorobut-2-ene comprises contacting 1,1,2,4,4-pentachlorobuta-1,3-diene with hydrogen fluoride in the vapor phase in the presence of a fluorination catalyst. A process for producing Z-1,1,1,4,4,4-hexafluorobut-2-ene further comprises contacting E-1,1,1,4,4,4-hexafluoro-2-butene with chlorine in the presence of a catalyst to produce 2,3-dichloro-1,1,1,4,4,4-hexafluorobutane, followed by reaction with base to produce 1,1,1,4,4,4-hexafluoro-2-butyne, and subsequently hydrogenating hexafluoro-2-butyne to produce Z-1,1,1,4,4,4-hexafluoro-2-butene.Type: ApplicationFiled: April 3, 2020Publication date: May 26, 2022Applicant: THE CHEMOURS COMPANY FC, LLCInventors: SHENG PENG, ALLEN CAPRON SIEVERT
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Publication number: 20210355360Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.Type: ApplicationFiled: July 30, 2021Publication date: November 18, 2021Applicant: THE CHEMOURS COMPANY FC, LLCInventors: Mario Joseph NAPPA, Barbara Haviland MINOR, Allen Capron SIEVERT
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Publication number: 20210292627Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.Type: ApplicationFiled: June 2, 2021Publication date: September 23, 2021Applicant: THE CHEMOURS COMPANY FC, LLCInventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Allen Capron Sievert
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Patent number: 11124685Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.Type: GrantFiled: January 3, 2020Date of Patent: September 21, 2021Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Mario Joseph Nappa, Barbara Haviland Minor, Allen Capron Sievert
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Publication number: 20210207014Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.Type: ApplicationFiled: March 18, 2021Publication date: July 8, 2021Applicant: THE CHEMOURS COMPANY FC, LLCInventors: MARIO JOSEPH NAPPA, BARBARA HAVILAND MINOR, ALLEN CAPRON SIEVERT
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Patent number: 11053421Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.Type: GrantFiled: July 1, 2019Date of Patent: July 6, 2021Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Allen Capron Sievert
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Patent number: 11046877Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.Type: GrantFiled: March 18, 2021Date of Patent: June 29, 2021Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Mario Joseph Nappa, Barbara Haviland Minor, Allen Capron Sievert
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Patent number: 11046876Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.Type: GrantFiled: July 8, 2020Date of Patent: June 29, 2021Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Mario Joseph Nappa, Barbara Haviland Minor, Allen Capron Sievert
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Publication number: 20200339853Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.Type: ApplicationFiled: July 8, 2020Publication date: October 29, 2020Applicant: THE CHEMOURS COMPANY FC, LLCInventors: MARIO JOSEPH NAPPA, BARBARA HAVILAND MINOR, ALLEN CAPRON SIEVERT
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Publication number: 20200172455Abstract: A process is disclosed for making CF3CF2CH3, CF3CF?CH2 and/or CF3CCl?CH2. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CH2CH2X, halopropenes of the formula CX3CH?CH2 and halopropenes of the formula CX2?CHCH2X, wherein each X is independently F or Cl, with HF and Cl2 in a reaction zone to produce a product mixture comprising HF, HCl, CF3CF2CH3, CF3CF?CH2, and CF3CCl?CH2; and recovering the CF3CF2CH3, CF3CF?CH2 and/or CF3CCl?CH2 from the product mixture. Also disclosed is a process for making CF3CH2CHF2, CF3CH?CHF, and/or CF3CH?CHCl.Type: ApplicationFiled: February 4, 2020Publication date: June 4, 2020Applicant: THE CHEMOURS COMPANY FC, LLCInventors: Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
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Publication number: 20200140734Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.Type: ApplicationFiled: January 3, 2020Publication date: May 7, 2020Applicant: THE CHEMOURS COMPANY FC, LLCInventors: Mario Joseph NAPPA, Barbara Haviland MINOR, Allen Capron SIEVERT
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Patent number: RE49849Abstract: A process is disclosed for making CF3CF2CH3, CF3CF?CH2 and/or CF3CCl?CH2. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CH2CH2X, halopropenes of the formula CX3CH?CH2 and halopropenes of the formula CX2?CHCH2X, wherein each X is independently F or Cl, with HF and Cl2 in a reaction zone to produce a product mixture comprising HF, HCl, CF3CF2CH3, CF3CF?CH2, and CF3CCl?CH2; and recovering the CF3CF2CH3, CF3CF?CH2 and/or CF3CCl?CH2 from the product mixture. Also disclosed is a process for making CF3CH2CHF2, CF3CH?CHF, and/or CF3CH?CHCl.Type: GrantFiled: November 25, 2014Date of Patent: February 27, 2024Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert