Patents by Inventor Thomas H. Epps, III
Thomas H. Epps, III 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: 12037347Abstract: A composition having the structure of formula I: [R—Ar—(COOH)2]x[Ar—(COOH)3]2-xM32+??(I) is provided where M is Mn, Cu, Co, Fe, Zn, Cd, Ni, or Pt; R is a bromine, nitro, a primary amine, C1-C4 alkyl secondary amine, C1-C4 alkyl oxy, Br—(C1-C4 alkyl), NO2—(C1-C4 alkyl), a mercaptan, and reaction products of any of the aforementioned with acyl chlorides of the formulas: CH3(CH2)mC(O)Cl, or CH3(CH(C1-C4 alkyl)CH2)mC(O)Cl, or CH3(CH2)m-Ph-(CH2)pC(O)Cl, where Ph is a C6 phenyl or C6 phenyl with one or more hydrogens replaced with F, C1-C4 fluoroalkyl, or C1-C4 perfluoroalkyl; m is independently in each occurrence an integer of 0 to 12 inclusive; p is an integer of 0 to 36 inclusive, to form an amide, a thioamide, or an ester; Ar is a 1,3,5-modified phenyl, and 1.4>×>0. A process of synthesis thereof and the use to chemically modify a gaseous reactant are also provided.Type: GrantFiled: September 30, 2022Date of Patent: July 16, 2024Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Gregory W. Peterson, Thomas H. Epps, III
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Publication number: 20240218109Abstract: Disclosed herein are bio-derivable polyhydroxyurethanes, methods of making them, compositions comprising the same, and articles comprising such compositions. The bio-derivable polyhydroxyurethane comprises in polymerized form at least one polymerizable lignin-derivable cyclic carbonate monomer, and one or more polymerizable amine crosslinkers, each comprising two or more primary amines, such that at least one of the one or more polymerizable amine crosslinkers comprises three primary amines. The bio-derivable polyhydroxyurethanes display enhanced mechanical performance as compared to the petroleum-derived analogues.Type: ApplicationFiled: December 14, 2023Publication date: July 4, 2024Applicant: University of DelawareInventors: Sampanna V. Mhatre, Jignesh S. Mahajan, Thomas H. Epps,, III, LaShanda T. J. Korley
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Patent number: 12012423Abstract: A composition having the structure of formula I: [R—Ar—(COOH)2]x[Ar—(COOH)3]2-xM32+??(I) is provided where M is Mn, Cu, Co, Fe, Zn, Cd, Ni, or Pt; R is a bromine, nitro, a primary amine, C1-C4 alkyl secondary amine, C1-C4 alkyl oxy, Br—(C1-C4 alkyl), NO2—(C1-C4 alkyl), a mercaptan, and reaction products of any of the aforementioned with acyl chlorides of the formulas: CH3(CH2)mC(O)Cl, or CH3(CH(C1-C4 alkyl)CH2)mC(O)Cl, or CH3(CH2)m-Ph-(CH2)pC(O)Cl, where Ph is a C6 phenyl or C6 phenyl with one or more hydrogens replaced with F, C1-C4 fluoroalkyl, or C1-C4 perfluoroalkyl; m is independently in each occurrence an integer of 0 to 12 inclusive; p is an integer of 0 to 36 inclusive, to form an amide, a thioamide, or an ester; Ar is a 1,3,5-modified phenyl, and 1.4>x>0. A process of synthesis thereof and the use to chemically modify a gaseous reactant are also provided.Type: GrantFiled: September 30, 2022Date of Patent: June 18, 2024Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Gregory W. Peterson, Thomas H. Epps, III
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Patent number: 11987594Abstract: A composition having the structure of formula I: [R—Ar—(COOH)2]x[Ar—(COOH)3]2-xM32+??(I) is provided where M is Mn, Cu, Co, Fe, Zn, Cd, Ni, or Pt; R is a bromine, nitro, a primary amine, C1-C4 alkyl secondary amine, C1-C4 alkyl oxy, Br—(C1-C4 alkyl), NO2—(C1-C4 alkyl), a mercaptan, and reaction products of any of the aforementioned with acyl chlorides of the formulas: CH3(CH2)mC(O)Cl, or CH3(CH(C1-C4 alkyl)CH2)mC(O)Cl, or CH3(CH2)m-Ph-(CH2)pC(O)Cl, where Ph is a C6 phenyl or C6 phenyl with one or more hydrogens replaced with F, C1-C4 fluoroalkyl, or C1-C4 perfluoroalkyl; m is independently in each occurrence an integer of 0 to 12 inclusive; p is an integer of 0 to 36 inclusive, to form an amide, a thioamide, or an ester; Ar is a 1,3,5-modified phenyl, and 1.4>x>0. A process of synthesis thereof and the use to chemically modify a gaseous reactant are also provided.Type: GrantFiled: September 29, 2022Date of Patent: May 21, 2024Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Gregory W. Peterson, Thomas H. Epps, III
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Patent number: 11732141Abstract: Dimethoxyphenol-based monomers containing polymerizable functional groups such as [meth]acrylate groups are useful for the preparation of polymers, wherein one or more dimethoxyphenyl moieties are part of side chains pendant to the backbones of the polymers. The polymers thereby obtained may have different, improved properties, such as higher glass transition temperatures, thermal stability and solvent resistance, as compared to polymers based on other types of lignin-derived monomers.Type: GrantFiled: February 15, 2019Date of Patent: August 22, 2023Assignee: UNIVERSITY OF DELAWAREInventors: Angela L. Holmberg, Kaleigh H. Reno, Thomas H. Epps, III
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Publication number: 20230113164Abstract: Disclosed herein is a bio-based copolymer comprising in polymerized form (i) at least one polymerizable bio-based monomer containing one phenolic hydroxyl group which has been derivatized to provide at least one polymerizable functional group which is an ethylenically unsaturated functional group (such as a [meth]acrylate group), where the precursors of the polymerizable bio-based monomers are derived from raw lignin-containing biomass, and (ii) at least one ion-conducting co-monomer other than the bio-based monomer. Also disclosed herein are binders comprising the bio-based copolymer, electrodes comprising the binder, polymer electrolytes comprising the bio-based copolymer and an electrochemical device comprising an electrode in electrical contact with a polymer electrolyte, wherein at least one of the electrode and the polymer electrolyte comprises the bio-based copolymer.Type: ApplicationFiled: November 4, 2022Publication date: April 13, 2023Applicant: University of DelawareInventors: Thomas H. Epps, III, Angela L. Holmberg, Kaleigh H. Nicastro, Shu Wang, Basudeb Saha, Li Shuai, Dionisios G. Vlachos, Melody A. Morris
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Patent number: 11525024Abstract: Disclosed herein is a method of making polymerizable bio-based monomers containing one phenolic hydroxyl group which has been derivatized to provide at least one polymerizable functional group which is an ethylenically unsaturated functional group (such as a [meth]acrylate group), where the precursors of the polymerizable bio-based monomers are derived from raw lignin-containing biomass. Also disclosed herein are bio-based copolymers prepared from such bio-based monomers and a co-monomer, and methods of making and using such bio-based copolymers. In particular, the bio-based copolymers can be used as pressure sensitive adhesives, binders, and polymer electrolytes.Type: GrantFiled: January 9, 2019Date of Patent: December 13, 2022Assignee: UNIVERSITY OF DELAWAREInventors: Thomas H. Epps, III, Angela L. Holmberg, Kaleigh H. Nicastro, Shu Wang, Basudeb Saha, Li Shuai, Dionisios G. Vlachos
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Patent number: 11504673Abstract: Disclosed herein are multi-layer structures comprising a first composite layer disposed over a second composite layer, wherein the first composite layer contains a first active material dispersed in a first polymer containing an elastomeric polymer and the second composite layer contains a second polymer which may have a second active material dispersed therein, wherein the first active material chemically or physically interacts with at least one toxic chemical and is selected from the group consisting of metal-organic frameworks (MOFs), metal oxides, metal hydroxides, zeolites, and combinations thereof, and wherein the active material and the second active material (if present) are the same as or different from each other, and the first polymer and second polymer are the same as or different from each other, subject to the proviso that the first composite layer and the second composite layer compositionally differ from each other in at least one respect.Type: GrantFiled: August 15, 2018Date of Patent: November 22, 2022Assignees: GOVERNMENT OF THE UNITED STATES, AS REPRESENTED BY THE DEFENSE THREAT REDUCTION AGENCY, GOVERNMENT OF THE UNITED STATES, AS REPRESENTED BY THE SECRETARY OF THE ARMY, UNIVERSITY OF DELAWAREInventors: Gregory W. Peterson, Annie Lu, Thomas H. Epps, III, Jean S. Epps
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Publication number: 20220324779Abstract: Disclosed herein are systems and methods of depolymerizing a lignin component of a lignin-containing material. The method comprising contacting the lignin-containing material with a solvent and optionally a catalyst at a temperature in the range of 180-300° C. and at a maximum operating pressure of less than 10 barG during the depolymerization of the lignin component of the material and collecting at least one volatile stream comprising one or more depolymerized lignin products. In an embodiment, the step of contacting is carried out in a reactive distillation reactor, and the step of collecting comprises concurrently collecting at least one volatile stream via distillation apparatus connected to the reactive distillation reactor, at least one of the one or more depolymerized lignin products comprises a substituted phenol having the following general formula: (I) wherein R1 is H, methyl, ethyl, n-propyl, propenyl, or allyl, and R2 and R3 are independently selected from H or methoxy group.Type: ApplicationFiled: August 14, 2020Publication date: October 13, 2022Inventors: Elvis O. Ebikade, Eric R. Gottlieb, Robert M. O'Dea, Thomas H. Epps, III, Dionisios Vlachos
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Patent number: 11459342Abstract: A composition having the structure of formula I: [R—Ar—(COOH)2]x[Ar—(COOH)3]2-xM32+??(I) is provided where M is Mn, Cu, Co, Fe, Zn, Cd, Ni, or Pt; R is a bromine, nitro, a primary amine, C1-C4 alkyl secondary amine, C1-C4 alkyl oxy, Br—(C1-C4 alkyl), NO2—(C1-C4 alkyl), a mercaptan, and reaction products of any of the aforementioned with acyl chlorides of the formulas: CH3(CH2)mC(O)Cl, or CH3(CH(C1-C4 alkyl)CH2)mC(O)Cl, or CH3(CH2)m-Ph-(CH2)pC(O)Cl, where Ph is a C6 phenyl or C6 phenyl with one or more hydrogens replaced with F, C1-C4 fluoroalkyl, or C1-C4 perfluoroalkyl; m is independently in each occurrence an integer of 0 to 12 inclusive; p is an integer of 0 to 36 inclusive, to form an amide, a thioamide, or an ester; Ar is a 1,3,5-modified phenyl, and 1.4>x>0. A process of synthesis thereof and the use to chemically modify a gaseous reactant are also provided.Type: GrantFiled: December 10, 2019Date of Patent: October 4, 2022Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Gregory W Peterson, Thomas H Epps, III
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Publication number: 20220251300Abstract: Disclosed herein are bio-based polysulfones, and in particular, bisguaiacol-based PSfs synthesized from (i) at least one polymerizable lignin-based monomer having a structure corresponding to formula (I) wherein each R1 is independently either an H or a methyl group, wherein R2, R3, and R4 are each individually selected from an H or a methoxy group, and (ii) at least one polymerizable 4,4?-dihalophenyl sulfone as a comonomer.Type: ApplicationFiled: June 11, 2020Publication date: August 11, 2022Applicants: University of Delaware, Arizona Board of Regents on behalf of Arizona State UniversityInventors: Thomas H. EPPS, III, LaShanda T. J. Korley, Matthew D. Green, Jignesh S. Mahajan, Hoda Shokrollahzadeh Behbahani
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Publication number: 20210129086Abstract: Disclosed herein are multi-layer structures comprising a first composite layer disposed over a second composite layer, wherein the first composite layer contains a first active material dispersed in a first polymer containing an elastomeric polymer and the second composite layer contains a second polymer which may have a second active material dispersed therein, wherein the first active material chemically or physically interacts with at least one toxic chemical and is selected from the group consisting of metal-organic frameworks (MOFs), metal oxides, metal hydroxides, zeolites, and combinations thereof, and wherein the active material and the second active material (if present) are the same as or different from each other, and the first polymer and second polymer are the same as or different from each other, subject to the proviso that the first composite layer and the second composite layer compositionally differ from each other in at least one respect.Type: ApplicationFiled: August 15, 2018Publication date: May 6, 2021Applicants: University of Delaware, Government of the United States, as Represented by the Defense Threat Reduction Agency, Government of the United States, as Represented by the Secretary of the ArmyInventors: Gregory W. Peterson, Annie Lu, Thomas H. Epps, III, Jean S. Epps
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Patent number: 10968301Abstract: The present disclosure is directed to stress-responsive compositions comprising (1) at least one (co)polymer comprising at least one mechanophore comprising at least one thiocarbonylthio functional group or derivative thereof and (2) at least one compound comprising at least one functional group capable of reacting with a free radical, The present disclosure is also directed to articles, coatings, and 3D printing binders comprising such stress-responsive compositions, as well as to processes of imparting the abilities of forming and maintaining protective barriers and mechanical self-healing to such articles, coatings, and 3D printing binders by incorporating such stress-responsive compositions therein.Type: GrantFiled: August 17, 2017Date of Patent: April 6, 2021Assignee: UNIVERSITY OF DELAWAREInventors: Melissa B. Gordon, Christopher J. Kloxin, Norman J. Wagner, Thomas H. Epps, III, Grant Alexander Knappe, Shu Wang
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Patent number: 10828664Abstract: A coating head includes a coating device and at least a first flexible blade that is capable of being shaped into contact with a solvent-containing film on a substrate upon pressing the first flexible blade against the film, thereby providing contact between the blade and the film over a contact distance when the coating head is drawn over the substrate. The coating device and the blade are separated by a spacing distance such that partial loss of solvent occurs from a starting film formed on the substrate by the coating device as the coating head is drawn over the substrate, the partial solvent loss forming the solvent-containing film. A method of producing a film having a hierarchical structure includes drawing a coating head across a substrate to form on the substrate via the coating device a starting film including a solvent and a material for forming the hierarchical structure.Type: GrantFiled: December 8, 2016Date of Patent: November 10, 2020Assignee: UNIVERSITY OF DELAWAREInventors: Cameron Shelton, Thomas H. Epps, III
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Publication number: 20190177462Abstract: Dimethoxyphenol-based monomers containing polymerizable functional groups such as [meth]acrylate groups are useful for the preparation of polymers, wherein one or more dimethoxyphenyl moieties are part of side chains pendant to the backbones of the polymers. The polymers thereby obtained may have different, improved properties, such as higher glass transition temperatures, thermal stability and solvent resistance, as compared to polymers based on other types of lignin-derived monomers.Type: ApplicationFiled: February 15, 2019Publication date: June 13, 2019Applicant: University of DelawareInventors: Angela L. Holmberg, Kaleigh H. Reno, Thomas H. Epps, III
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Publication number: 20190169340Abstract: The present disclosure is directed to stress-responsive compositions comprising (1) at least one (co)polymer comprising at least one mechanophore comprising at least one thiocarbonylthio functional group or derivative thereof and (2) at least one compound comprising at least one functional group capable of reacting with a free radical, The present disclosure is also directed to articles, coatings, and 3D printing binders comprising such stress-responsive compositions, as well as to processes of imparting the abilities of forming and maintaining protective barriers and mechanical self-healing to such articles, coatings, and 3D printing binders by incorporating such stress-responsive compositions therein.Type: ApplicationFiled: August 17, 2017Publication date: June 6, 2019Applicant: University of DelawareInventors: Melissa B. Gordon, Christopher J. Kloxin, Norman J. Wagner, Thomas H. Epps, III, Grant Alexander Knappe, Shu Wang
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Publication number: 20190144590Abstract: Disclosed herein is a method of making polymerizable bio-based monomers containing one phenolic hydroxyl group which has been derivatized to provide at least one polymerizable functional group which is an ethylenically unsaturated functional group (such as a [meth]acrylate group), where the precursors of the polymerizable bio-based monomers are derived from raw lignin-containing biomass. Also disclosed herein are bio-based copolymers prepared from such bio-based monomers and a co-monomer, and methods of making and using such bio-based copolymers. In particular, the bio-based copolymers can be used as pressure sensitive adhesives, binders, and polymer electrolytes.Type: ApplicationFiled: January 9, 2019Publication date: May 16, 2019Applicant: University of DelawareInventors: Thomas H. Epps, III, Angela L. Holmberg, Kaleigh H. Nicastro, Shu Wang, Basudeb Saha, Li Shuai, Dionisios G. VLACHOS, Melody A. Morris
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Patent number: 10253131Abstract: Dimethoxyphenol-based monomers containing polymerizable functional groups such as [meth]acrylate groups are useful for the preparation of polymers, wherein one or more dimethoxyphenyl moieties are part of side chains pendant to the backbones of the polymers. The polymers thereby obtained may have different, improved properties, such as higher glass transition temperatures, thermal stability and solvent resistance, as compared to polymers based on other types of lignin-derived monomers.Type: GrantFiled: July 12, 2016Date of Patent: April 9, 2019Assignee: UNIVERSITY OF DELAWAREInventors: Angela L. Holmberg, Kaleigh H. Reno, Thomas H. Epps, III
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Publication number: 20180326451Abstract: A coating head includes a coating device and at least a first flexible blade that is capable of being shaped into contact with a solvent-containing film on a substrate upon pressing the first flexible blade against the film, thereby providing contact between the blade and the film over a contact distance when the coating head is drawn over the substrate. The coating device and the blade are separated by a spacing distance such that partial loss of solvent occurs from a starting film formed on the substrate by the coating device as the coating head is drawn over the substrate, the partial solvent loss forming the solvent-containing film. A method of producing a film having a hierarchical structure includes drawing a coating head across a substrate to form on the substrate via the coating device a starting film including a solvent and a material for forming the hierarchical structure.Type: ApplicationFiled: December 8, 2016Publication date: November 15, 2018Applicant: University of DelawareInventors: Cameron SHELTON, Thomas H. EPPS, III
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Patent number: 9935332Abstract: Copolymers useful as components of polymer electrolytes are provided in which the copolymer comprises at least one block sequence represented by formula (I): A—(T)—B ??(I) wherein A is a vinyl aromatic block, T is a tapered copolymer region copolymerized from a vinyl aromatic monomer and an oligo(oxyalkylene) acrylate monomer and B is an oligo(oxyalkylene) acrylate block.Type: GrantFiled: January 8, 2015Date of Patent: April 3, 2018Assignee: UNIVERSITY OF DELAWAREInventors: Thomas H. Epps, III, Wei-Fan Kuan