Patents by Inventor Dionisios G. Vlachos

Dionisios G. Vlachos 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).

  • Publication number: 20230323219
    Abstract: The present disclosure provides a catalyst represented by Formula (I) wherein the moiety X[(ROa)(QOb)] and the moiety Z are mechanically mixed; wherein the weight percentage of the moiety Z is about 1% to about 99% of the total weight of the catalyst. Furthermore, the present disclosure provides a tunable, low-temperature, energy-efficient process for hydrocracking plastics to form a fuel, a lubricant, or a mixture thereof.
    Type: Application
    Filed: June 17, 2021
    Publication date: October 12, 2023
    Applicant: UNIVERSITY OF DELAWARE
    Inventors: Sibao Liu, Dionisios G. Vlachos
  • Publication number: 20230113164
    Abstract: 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: Application
    Filed: November 4, 2022
    Publication date: April 13, 2023
    Applicant: University of Delaware
    Inventors: Thomas H. Epps, III, Angela L. Holmberg, Kaleigh H. Nicastro, Shu Wang, Basudeb Saha, Li Shuai, Dionisios G. Vlachos, Melody A. Morris
  • Patent number: 11525024
    Abstract: 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: Grant
    Filed: January 9, 2019
    Date of Patent: December 13, 2022
    Assignee: UNIVERSITY OF DELAWARE
    Inventors: Thomas H. Epps, III, Angela L. Holmberg, Kaleigh H. Nicastro, Shu Wang, Basudeb Saha, Li Shuai, Dionisios G. Vlachos
  • Publication number: 20220025287
    Abstract: Disclosed herein are lubricant compositions containing 75-99% by weight of a base oil that includes one or more branched aliphatic compounds having the following formula: R1R2HC—CH2—CHR3R4 (I) wherein R1 and R3 are independently selected from alkyl groups having 8 to 26 carbon atoms, and R2 and R4 are independently selected from the group consisting of H and alkyl groups having 5 to 7 carbon atoms, with a proviso that at least one of R2 and R4 is not hydrogen. The alkyl groups are substituted or unsubstituted, or branched or unbranched; R1 and R3 may be the same or different; and the total carbon content of the branched aliphatic compound of formula (I) is in the range of 26 to 66. The lubricant compositions also include an effective amount of one or more additives. Also, disclosed herein are processes for making such compositions and their uses in pharmaceutical and personal care products.
    Type: Application
    Filed: November 26, 2019
    Publication date: January 27, 2022
    Applicant: University of Delaware
    Inventors: Basudeb SAHA, Sibao LIU, Angela M. NORTON, Dionisios G. VLACHOS
  • Publication number: 20190144590
    Abstract: 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: Application
    Filed: January 9, 2019
    Publication date: May 16, 2019
    Applicant: University of Delaware
    Inventors: Thomas H. Epps, III, Angela L. Holmberg, Kaleigh H. Nicastro, Shu Wang, Basudeb Saha, Li Shuai, Dionisios G. VLACHOS, Melody A. Morris
  • Publication number: 20190109344
    Abstract: The present disclosure is directed to microparticles comprising carbon, wherein a plurality of nanoparticles are supported on the surface of the microparticle. The nanoparticles comprise at least one transition metal compound selected from the group consisting of transition metal carbides, transition metal nitrides, transition metal sulfides, transition metal phosphides, transition metal carbonitrides, transition metal sulfonitrides, transition metal carbosulfides, transition metal phosphocarbides, transition metal phosphonitrides, transition metal phosphosulfides, transition metal carbosulfonitrides, transition metal carbophosphonitrides, transition metal phosphosulfonitrides, transition metal carbophosphosulfonitrides, and interstitial derivatives thereof. The present disclosure is also directed to processes for preparing such microparticles and to polymer electrolyte membranes (PEMs) that comprise such microparticles, as well as to the use of such PEMs in fuel cells.
    Type: Application
    Filed: April 25, 2017
    Publication date: April 11, 2019
    Applicant: University of Delaware
    Inventors: Liang WANG, Weiqing ZHENG, Ajay K. PRASAD, Suresh G. ADVANI, Dionisios G. VLACHOS
  • Publication number: 20140296600
    Abstract: The present invention provides a renewable route to para-xylene via cycloaddition of ethylene and 2,5-dimethylfuran and subsequent dehydration with high selectivity and high yields using acidic heterogeneous catalysts and a solvent for 2,5-dimethylfuran. The use of a solvent shows significant effects in the reduction of competing side reactions including hydrolysis of 2,5-dimethylfuran to 2,5-hexanedione, alkylation of p-xylene, and polymerization of 2,5-hexanedione.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 2, 2014
    Applicants: University of Delaware, University of Massachusetts
    Inventors: Paul Jakob Dauenhauer, Christopher Luke Williams, Dionisios G. Vlachos, Raul F. Lobo, Chun-Chih Chang, Wei Fan
  • Patent number: 7862331
    Abstract: The present invention comprises a device which utilizes catalytic microcombustion for the production of heat or power and which exhibits a low pressure drop and has a high catalytic surface area. The catalytic microcombustor includes catalyst inserts in the reaction chamber separated by a sub millimeter distance. Thermal spreaders ensure temperature uniformity and maximum thermal efficiency. A mixing zone is prior to the combustion zone. Thermally conductive and/or insulating inserts are in the vicinity of the reaction zone.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: January 4, 2011
    Assignee: University of Delaware
    Inventors: Daniel G. Norton, Eric Dean Wetzel, Dionisios G. Vlachos