Patents by Inventor Angela L. Holmberg

Angela L. Holmberg 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).

  • Patent number: 11732141
    Abstract: 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: Grant
    Filed: February 15, 2019
    Date of Patent: August 22, 2023
    Assignee: UNIVERSITY OF DELAWARE
    Inventors: Angela L. Holmberg, Kaleigh H. Reno, Thomas H. Epps, III
  • 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: 20190177462
    Abstract: 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: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Applicant: University of Delaware
    Inventors: Angela L. Holmberg, Kaleigh H. Reno, Thomas H. Epps, III
  • 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
  • Patent number: 10253131
    Abstract: 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: Grant
    Filed: July 12, 2016
    Date of Patent: April 9, 2019
    Assignee: UNIVERSITY OF DELAWARE
    Inventors: Angela L. Holmberg, Kaleigh H. Reno, Thomas H. Epps, III
  • Patent number: 9512249
    Abstract: The present invention pertains to bio-based block polymers synthesized from functionalized lignin-based molecules (A-monomer) and functionalized fatty acids or fatty alcohols (B-monomer) derived from plant or animal oils, waxes or fats. The block polymers can be synthesized via numerous polymerization techniques, such as reversible addition-fragmentation chain transfer (RAFT). Most importantly, this class of bio-based block polymers shows promise as providing sustainable yet scalable and tunable thermoplastic elastomers and pressure-sensitive adhesives, among other applications.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: December 6, 2016
    Assignee: University of Delaware
    Inventors: Angela L. Holmberg, Joseph F. Stanzione, Richard Wool, Thomas H. Epps, III
  • Publication number: 20140275435
    Abstract: The present invention pertains to bio-based block polymers synthesized from functionalized lignin-based molecules (A-monomer) and functionalized fatty acids or fatty alcohols (B-monomer) derived from plant or animal oils, waxes or fats. The block polymers can be synthesized via numerous polymerization techniques, such as reversible addition-fragmentation chain transfer (RAFT). Most importantly, this class of bio-based block polymers shows promise as providing sustainable yet scalable and tunable thermoplastic elastomers and pressure-sensitive adhesives, among other applications.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Applicant: University of Delaware
    Inventors: Thomas H. Epps, III, Angela L. Holmberg, Joseph F. Stanzione, Richard Wool