Patents by Inventor Li Shuai

Li Shuai 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: 11639324
    Abstract: The present invention relates to a method for preparing monomers via depolymerisation from lignocellulose-containing biomass.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 2, 2023
    Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)
    Inventors: Jeremy Scott Luterbacher, Li Shuai
  • 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: 20210107851
    Abstract: The present invention relates to a method for preparing monomers via depolymerisation from lignocellulose-containing biomass.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Applicant: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Jeremy Scott LUTERBACHER, Li SHUAI
  • Patent number: 10906856
    Abstract: The present invention relates to a method for preparing monomers via depolymerisation from lignocellulose-containing biomass.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: February 2, 2021
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Jeremy Scott Luterbacher, Li Shuai
  • 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: 20190127304
    Abstract: The present invention relates to a method for preparing monomers via depolymerisation from lignocellulose-containing biomass.
    Type: Application
    Filed: April 12, 2017
    Publication date: May 2, 2019
    Inventors: Jeremy Scott LUTERBACHER, Li SHUAI
  • Patent number: 9487712
    Abstract: A process that directly converts carbohydrates, particularly biomass derived carbohydrates and more specifically biomass (e.g., lignocellulosic biomass), to furfural-/HMF-ketone adducts for liquid hydrocarbon production under mild conditions.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: November 8, 2016
    Assignee: WISCONSIN ALUMNI RESEARCH FOUNDATION
    Inventors: Li Shuai, Xuejun Pan
  • Patent number: 9187790
    Abstract: An efficient process for saccharifying lignocellulosic biomass in concentrated aqueous solutions of certain bromine salts, particularly LiBr and CaBr2. Real lignocellulose biomass, such as corn stover, switchgrass, waste paper, hardwood, and softwood, can be hydrolyzed without the need for any prior pretreatment. Complete saccharification of both cellulose and hemicellulose is achieved within 5-200 min at temperatures ranging from about 100 to about 160° C. Residual lignin is readily separated from product sugars by filtration or centrifugation and can be used to prepare beneficial coproducts. The bromine salt can be recovered and separated from product sugars (predominantly monosaccharides) by any art-known method and in particular solvent extraction, anti-solvent precipitation, ion-exclusion chromatography and/or ion-exchange chromatography can be employed. Hydrolysis product containing sugars can be employed for in fermentation for the production of value added products or useful fuels.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: November 17, 2015
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Xuejun Pan, Li Shuai
  • Publication number: 20130305594
    Abstract: A process that directly converts carbohydrates, particularly biomass derived carbohydrates and more specifically biomass (e.g., lignocellulosic biomass), to furfural-/HMF-ketone adducts for liquid hydrocarbon production under mild conditions.
    Type: Application
    Filed: November 8, 2011
    Publication date: November 21, 2013
    Inventors: Li Shuai, Xuejun Pan
  • Publication number: 20130252302
    Abstract: An efficient process for saccharifying lignocellulosic biomass in concentrated aqueous solutions of certain bromine salts, particularly LiBr and CaBr2. Real lignocellulose biomass, such as corn stover, switchgrass, waste paper, hardwood, and softwood, can be hydrolyzed without the need for any prior pretreatment. Complete saccharification of both cellulose and hemicellulose is achieved within 5-200 min at temperatures ranging from about 100 to about 160° C. Residual lignin is readily separated from product sugars by filtration or centrifugation and can be used to prepare beneficial coproducts. The bromine salt can be recovered and separated from product sugars (predominantly monosaccharides) by any art-known method and in particular solvent extraction, anti-solvent precipitation, ion-exclusion chromatography and/or ion-exchange chromatography can be employed. Hydrolysis product containing sugars can be employed for in fermentation for the production of value added products or useful fuels.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 26, 2013
    Applicant: Wisconsin Alumni Reserarch Foundation
    Inventors: Xuejun PAN, Li Shuai