Patents by Inventor Frank J. Feher
Frank J. Feher 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: 11773238Abstract: It has been discovered that certain monofunctional thiuram compounds can be synthesized at low cost and utilized as vulcanization accelerators which provide excellent cure rates without causing a high level of scorch. The use of these monofunctional thiuram compounds as vulcanization accelerators also result in cured rubber compositions that exhibit reduced compression set, improved age hardening characteristics, and degradation resistant crosslinks. These monofunctional thiuram compounds are of the structural formula: wherein R1 and R2 can be the same or different and represent organyl radicals, wherein R1 and R2 contain a total of at least 8 carbon atoms, and wherein R1 and R2 can join together to form a cyclic structure, and wherein R3 represents an organyl radical containing at least 6 carbon atoms.Type: GrantFiled: February 19, 2021Date of Patent: October 3, 2023Assignee: THE GOODYEAR TIRE & RUBBER COMPANYInventors: Thomas Franklin Spilker, Frank J. Feher
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Patent number: 11685712Abstract: The present invention provides a route for synthesizing monofunctional thiuram compounds that is safe, environmentally friendly, and cost effective. This method specifically involves synthesizing a monofunctional thiuram by (1) reacting a tetraorganylthiuram disulfide with an organyl mercaptan to produce the monofunctional thiuram and a dithiocarbamate metal salt or a dithiocarbamate metalloid salt under basic conditions, (2) separating the monofunctional thiuram in an organic phase from the dithiocarbamate metal salt or the dithiocarbamate metalloid salt in an aqueous phase, and (3) recovering the monofunctional thiuram from the aqueous phase. The monofunctional thiuram compounds made in accordance with this invention are of particular value as accelerators for use in the vulcanization of rubber. The use of these monofunctional thiuram compounds as accelerators provides good cure rates and as well as good scorch safety.Type: GrantFiled: August 24, 2022Date of Patent: June 27, 2023Assignee: The Goodyear Tire & Rubber CompanyInventors: Thomas Franklin Spilker, Ji Yang Jin, Frank J. Feher
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Publication number: 20230029068Abstract: The present invention provides a route for synthesizing monofunctional thiuram compounds that is safe, environmentally friendly, and cost effective. This method specifically involves synthesizing a monofunctional thiuram by (1) reacting a tetraorganylthiuram disulfide with an organyl mercaptan to produce the monofunctional thiuram and a dithiocarbamate metal salt or a dithiocarbamate metalloid salt under basic conditions, (2) separating the monofunctional thiuram in an organic phase from the dithiocarbamate metal salt or the dithiocarbamate metalloid salt in an aqueous phase, and (3) recovering the monofunctional thiuram from the aqueous phase. The monofunctional thiuram compounds made in accordance with this invention are of particular value as accelerators for use in the vulcanization of rubber. The use of these monofunctional thiuram compounds as accelerators provides good cure rates and as well as good scorch safety.Type: ApplicationFiled: August 24, 2022Publication date: January 26, 2023Inventors: Thomas Franklin Spilker, Ji Yang Jin, Frank J. Feher
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Patent number: 11465968Abstract: The present invention provides a route for synthesizing monofunctional thiuram compounds that is safe, environmentally friendly, and cost effective. This method specifically involves synthesizing a monofunctional thiuram by (1) reacting a tetraorganylthiuram disulfide with an organyl mercaptan to produce the monofunctional thiuram and a dithiocarbamate metal salt or a dithiocarbamate metalloid salt under basic conditions, (2) separating the monofunctional thiuram in an organic phase from the dithiocarbamate metal salt or the dithiocarbamate metalloid salt in an aqueous phase, and (3) recovering the monofunctional thiuram from the aqueous phase. The monofunctional thiuram compounds made in accordance with this invention are of particular value as accelerators for use in the vulcanization of rubber. The use of these monofunctional thiuram compounds as accelerators provides good cure rates and as well as good scorch safety.Type: GrantFiled: December 10, 2020Date of Patent: October 11, 2022Inventors: Thomas Franklin Spilker, Ji Yang Jin, Frank J. Feher
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Publication number: 20220097326Abstract: This invention reveals a method of manufacturing a puncture sealing pneumatic rubber tire which comprises: (1) building an unvulcanized tire including a circumferential rubber tread, a supporting carcass therefor, two spaced beads, two rubber sidewalls connecting said beads, an inner liner and a solid sealant formulation layer disposed inwardly from said supporting carcass and outwardly from said inner liner, wherein said solid sealant formulation layer is comprised of (a) polyisobutylene, (b) a peroxide, and (c) a reinforcing filler, wherein the polyisobutylene is present in the sealant layer at a level of at least 50 weight percent; and (2) shaping and vulcanizing said tire in a tire mold under conditions of heat and pressure and simultaneously forming in situ a puncture sealant layer in said tire by both crosslinking and partially depolymerizing said polyisobutylene rubber in said sealant layer formulation.Type: ApplicationFiled: September 7, 2021Publication date: March 31, 2022Inventors: George Jim Papakonstantopoulos, Michael Lawrence Gersman, Frank J. Feher, Stephan Rodewald
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Publication number: 20210261757Abstract: It has been discovered that certain monofunctional thiuram compounds can be synthesized at low cost and utilized as vulcanization accelerators which provide excellent cure rates without causing a high level of scorch. The use of these monofunctional thiuram compounds as vulcanization accelerators also result in cured rubber compositions that exhibit reduced compression set, improved age hardening characteristics, and degradation resistant crosslinks. These monofunctional thiuram compounds are of the structural formula: wherein R1 and R2 can be the same or different and represent organyl radicals, wherein R1 and R2 contain a total of at least 8 carbon atoms, and wherein R1 and R2 can join together to form a cyclic structure, and wherein R3 represents an organyl radical containing at least 6 carbon atoms.Type: ApplicationFiled: February 19, 2021Publication date: August 26, 2021Inventors: Thomas Franklin Spilker, Frank J. Feher
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Publication number: 20210198194Abstract: The present invention provides a route for synthesizing monofunctional thiuram compounds that is safe, environmentally friendly, and cost effective. This method specifically involves synthesizing a monofunctional thiuram by (1) reacting a tetraorganylthiuram disulfide with an organyl mercaptan to produce the monofunctional thiuram and a dithiocarbamate metal salt or a dithiocarbamate metalloid salt under basic conditions, (2) separating the monofunctional thiuram in an organic phase from the dithiocarbamate metal salt or the dithiocarbamate metalloid salt in an aqueous phase, and (3) recovering the monofunctional thiuram from the aqueous phase. The monofunctional thiuram compounds made in accordance with this invention are of particular value as accelerators for use in the vulcanization of rubber. The use of these monofunctional thiuram compounds as accelerators provides good cure rates and as well as good scorch safety.Type: ApplicationFiled: December 10, 2020Publication date: July 1, 2021Inventors: Thomas Franklin Spilker, Ji Yang Jin, Frank J. Feher
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Patent number: 10626420Abstract: The invention features methods for producing isoprene from cultured cells. The invention also provides compositions that include these cultured cells.Type: GrantFiled: January 17, 2018Date of Patent: April 21, 2020Assignees: Danisco US Inc., The Goodyear Tire & Rubber CompanyInventors: Marguerite A. Cervin, Gopal K. Chotani, Frank J. Feher, Richard La Duca, Joseph C. McAuliffe, Andrei Miasnikov, Caroline M. Peres, Aaron S. Puhala, Karl J. Sanford, Fernando Valle, Gregory M. Whited
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Publication number: 20180273982Abstract: The invention features methods for producing isoprene from cultured cells. The invention also provides compositions that include these cultured cells.Type: ApplicationFiled: January 17, 2018Publication date: September 27, 2018Applicants: Danisco US Inc., The Goodyear Tire & Rubber CompanyInventors: Marguerite A. CERVIN, Gopal K. CHOTANI, Frank J. FEHER, Richard LA DUCA, Joseph C. MCAULIFFE, Andrei MIASNIKOV, Caroline M. PERES, Aaron S. PUHALA, Karl J. SANFORD, Fernando VALLE, Gregory M. WHITED
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Patent number: 9909144Abstract: The invention features methods for producing isoprene from cultured cells. The invention also provides compositions that include these cultured cells.Type: GrantFiled: January 4, 2016Date of Patent: March 6, 2018Assignees: Danisco US Inc., The Goodyear Tire & Rubber CompanyInventors: Marguerite A. Cervin, Gopal K. Chotani, Frank J. Feher, Richard La Duca, Joseph C. McAuliffe, Andrei Miasnikov, Caroline M. Peres, Aaron S. Puhala, Karl J. Sanford, Fernando Valle, Gregory M. Whited
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Patent number: 9751820Abstract: Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions.Type: GrantFiled: April 9, 2015Date of Patent: September 5, 2017Assignees: Danisco US Inc., The Goodyear Tire & Rubber CompanyInventors: Frank J. Feher, John Kaluen Kan, Joseph C. McAuliffe, Thomas F. McCall, Lawrence J. Pickert, Christopher D. Ploetz, Stephan Rodewald, Timothy A. Sabo, Tang H. Wong
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Publication number: 20160281113Abstract: The invention features methods for producing isoprene from cultured cells. The invention also provides compositions that include these cultured cells.Type: ApplicationFiled: January 4, 2016Publication date: September 29, 2016Inventors: Marguerite A. Cervin, Gopal K. Chotani, Frank J. Feher, Richard La Duca, Joseph C. McAuliffe, Andrei Miasnikov, Caroline M. Peres, Aaron S. Puhala, Karl J. Sanford, Fernando Valle, Gregory M. Whited
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Patent number: 9296850Abstract: It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials. The synthetic isoprene containing polymers of this invention offer the benefit of being verifiable as to being derived from non-petrochemical based resources. They can also be analytically distinguished from rubbers that come from natural sources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has ?13C value of greater than ?22%.Type: GrantFiled: January 26, 2015Date of Patent: March 29, 2016Assignees: The Goodyear Tire & Rubber Company, Danisco US, Inc.Inventors: Frank J. Feher, Gregory M. Whited, Gopal K. Chotani, Fernando Valle, Carol Fioresi, Karl J. Sanford, Joseph McAuliffe, Marguerite Cervin, Aaron S. Puhala, Andrei Miasnikov, Ilana S. Aldor
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Patent number: 9260727Abstract: The invention features methods for producing isoprene from cultured cells. The invention also provides compositions that include these cultured cells.Type: GrantFiled: August 30, 2012Date of Patent: February 16, 2016Assignees: DANISCO US INC., THE GOODYEAR TIRE & RUBBER COMPANYInventors: Marguerite A. Cervin, Gopal K. Chotani, Frank J. Feher, Richard La Duca, Joseph C. McAuliffe, Andrei Miasnikov, Caroline M. Peres, Aaron S. Puhala, Karl J. Sanford, Fernando Valle, Gregory M. Whited
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Publication number: 20150274615Abstract: Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions.Type: ApplicationFiled: April 9, 2015Publication date: October 1, 2015Inventors: Frank J. FEHER, John Kaluen KAN, Joseph C. MCAULIFFE, Thomas F. MCCALL, Lawrence J. PICKERT, Christopher D. PLOETZ, Stephan RODEWALD, Timothy A. SABO, Tang H. WONG
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Publication number: 20150203620Abstract: It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials. The synthetic isoprene containing polymers of this invention offer the benefit of being verifiable as to being derived from non-petrochemical based resources. They can also be analytically distinguished from rubbers that come from natural sources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has ?13C value of greater than ?22%.Type: ApplicationFiled: January 26, 2015Publication date: July 23, 2015Applicants: DANISCO US INC., THE GOODYEAR TIRE & RUBBER COMPANYInventors: Frank J. Feher, Gregory M. Whited, Gopal K. Chotani, Fernando Valle, Carol Fioresi, Karl J. Sanford, Joseph McAuliffe, Marguerite Cervin, Aaron S. Puhala, Andrei Miasnikov, Ilana S. Aldor
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Patent number: 8940849Abstract: It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials. The synthetic isoprene containing polymers of this invention offer the benefit of being verifiable as to being derived from non-petrochemical based resources. They can also be analytically distinguished from rubbers that come from natural sources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has ?13C value of greater than ?22‰.Type: GrantFiled: March 11, 2013Date of Patent: January 27, 2015Assignees: The Goodyear Tire & Rubber Company, Danisco US Inc.Inventors: Frank J. Feher, Gregory M. Whited, Gopal K. Chotani, Fernando Valle, Carol Fioresi, Karl J. Sanford, Joseph McAuliffe, Marguerite Cervin, Aaron S. Puhala, Andrei Miasnikov, Ilana S. Aldor
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Publication number: 20140187839Abstract: Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions.Type: ApplicationFiled: September 24, 2013Publication date: July 3, 2014Applicants: The Goodyear Tire & Rubber Company, Danisco US Inc.Inventors: Frank J. FEHER, John Kaluen KAN, Joseph C. MCAULIFFE, Thomas F. MCCALL, Lawrence J. PICKERT, Christopher D. PLOETZ, Stephan RODEWALD, Timothy A. SABO, Tang H. WONG
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Patent number: 8709785Abstract: The invention features methods for producing isoprene from cultured cells. The invention also provides compositions that include these cultured cells.Type: GrantFiled: August 30, 2012Date of Patent: April 29, 2014Assignees: Danisco US Inc., The Goodyear Tire & Rubber CompanyInventors: Marguerite A. Cervin, Gopal K. Chotani, Frank J. Feher, Richard La Duca, Joseph C. McAuliffe, Andrei Miasnikov, Caroline M. Peres, Aaron S. Puhala, Karl J. Sanford, Fernando Valle, Gregory M. Whited
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Patent number: 8569562Abstract: Methods and apparatus for the purification of isoprene, such as the purification of a bioisoprene composition from fermentor off-gas. The apparatus includes two columns that process the fermentor off-gas, which includes isoprene and various impurities. A solvent is added to the off-gas in the first column, and the isoprene is stripped from the solvent in the second column. Also provided is a downstream further purification process. Also provided are the resulting purified isoprene compositions.Type: GrantFiled: December 15, 2010Date of Patent: October 29, 2013Assignees: Danisco US Inc., The Goodyear Tire & Rubber CompanyInventors: Frank J. Feher, John Kaluen Kan, Joseph C. McAuliffe, Thomas F. McCall, Stephan Rodewald, Timothy Alan Sabo, Tang Hong Wong, Christopher D. Ploetz, Lawrence J. Pickert