Patents by Inventor Nacu HERNANDEZ

Nacu HERNANDEZ 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: 11976169
    Abstract: The present invention relates to a polymer comprising a repeating group having the structure of formula (I) wherein R, R1, R2, R3, R4, X, and s are as described herein and salt thereof. Also disclosed is a process of synthesizing such polymers.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: May 7, 2024
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Nacu Hernandez, Mengguo Yan, Eric William Cochran, John Edward Matthiesen, Jean-Philippe Tessonnier
  • Patent number: 11958974
    Abstract: The present invention relates to an asphalt product. The asphalt product includes an asphalt binder and a bio-oil blend comprising a mixture of a non-hydrogenated bio-oil and a partially hydrogenated bio-oil, where the bio-oil blend is mixed with the asphalt binder to form an asphalt product having a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C. and/or a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C. The present invention further relates to methods of producing an asphalt product and methods of applying an asphalt product to a surface.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: April 16, 2024
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Ronald Christopher Williams, Joseph Herbert Podolsky, Nacu Hernandez, Eric W. Cochran
  • Patent number: 11945953
    Abstract: The present invention relates to an asphalt product that comprises an asphalt component and a plurality of pellets comprising a mixture of a ground tire rubber and an elastomeric polymer, where the density difference between the asphalt component and the plurality of pellets is less than 10%. The present invention further relates to a pellet comprising a ground tire rubber (“GTR”) and an elastomeric polymer mixed with the GTR, where the GTR has a density of less than 1.12 g/cm3. Also disclosed are methods of producing improved asphalt and paving a surface.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: April 2, 2024
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Eric W. Cochran, Nacu Hernandez, Ronald Christopher Williams
  • Publication number: 20240084141
    Abstract: The present application is directed to an asphalt pavement product comprising: a reclaimed asphalt pavement product (RAP); and an emulsified product mixed with the RAP, said emulsified product comprising: water; one or more surfactants; one or more stabilizers; one or more polymers; and one or more compounds of formula (I): wherein R and A are as described herein. The present application is also directed to methods of paving a road course using the emulsified product.
    Type: Application
    Filed: August 15, 2023
    Publication date: March 14, 2024
    Inventors: Eric William Cochran, Michael J. Forrester, Austin Hohmann, Nacu Hernandez, Baker Kuehl, Ronald Christopher Williams
  • Publication number: 20240001711
    Abstract: The present invention relates to a homopolymer, copolymer, block copolymer, and statistical copolymer comprising plural polyol monomeric units. The polyol monomeric units being acrylated and acylated or acetalized. The acrylated and acylated or acetalized polyol monomeric units have an average degree of acrylation which is 1 or more, but less than the number of the hydroxyl groups of the polyol and have an average degree of acylation or acetalization which is 1 or more, but less than the number of the hydroxyl groups of the polyol. The present invention also relates to a method of making the homopolymers, copolymers, block copolymers, and statistical copolymers, and using them in various applications, such as asphalt rubber modifiers, adhesives, or an additive in a fracking fluid for oil fracking.
    Type: Application
    Filed: September 15, 2023
    Publication date: January 4, 2024
    Inventors: Eric W. COCHRAN, Nacu HERNANDEZ, Michael FORRESTER, Shailja GOYAL, Austin HOHMANN
  • Publication number: 20230399514
    Abstract: The present application is directed to an asphalt binder composition comprising: an asphalt binder; a compound of formula (I): wherein R, A, n, and m are as described herein, a compound of formula (II): wherein R?, A?, n?, and m? are as described herein. The present application is also directed to further compositions, methods of producing an asphalt binder composition, and methods of paving.
    Type: Application
    Filed: June 22, 2023
    Publication date: December 14, 2023
    Inventors: Eric W. Cochran, Nacu Hernandez, Austin Hohmann, Ronald Christopher Williams, Michael Forrester, Joseph H. Podolsky, Paul Ledtje, Conglin Chen
  • Patent number: 11813892
    Abstract: The present invention relates to a homopolymer, copolymer, block copolymer, and statistical copolymer comprising plural polyol monomeric units. The polyol monomeric units being acrylated and acylated or acetalized. The acrylated and acylated or acetalized polyol monomeric units have an average degree of acrylation which is 1 or more, but less than the number of the hydroxyl groups of the polyol and have an average degree of acylation or acetalization which is 1 or more, but less than the number of the hydroxyl groups of the polyol. The present invention also relates to a method of making the homopolymers, copolymers, block copolymers, and statistical copolymers, and using them in various applications, such as asphalt rubber modifiers, adhesives, or an additive in a fracking fluid for oil fracking.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: November 14, 2023
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Eric W. Cochran, Nacu Hernandez, Michael Forrester, Shailja Goyal, Austin Hohmann
  • Publication number: 20230312928
    Abstract: The present invention relates to an asphalt product that comprises an asphalt component and a plurality of pellets comprising a mixture of a ground tire rubber and an elastomeric polymer, where the density difference between the asphalt component and the plurality of pellets is less than 10%. The present invention further relates to a pellet comprising a ground tire rubber (“GTR”) and an elastomeric polymer mixed with the GTR, where the GTR has a density of less than 1.12 g/cm3. Also disclosed are methods of producing improved asphalt and paving a surface.
    Type: Application
    Filed: May 25, 2023
    Publication date: October 5, 2023
    Inventors: Eric W. COCHRAN, Nacu HERNANDEZ, Ronald Christopher WILLIAMS
  • Patent number: 11773265
    Abstract: The present application is directed to an asphalt binder composition comprising: an asphalt binder; a compound of formula (I): wherein R, A, n, and m are as described herein, a compound of formula (II): wherein R?, A?, n?, and m? are as described herein. The present application is also directed to further compositions, methods of producing an asphalt binder composition, and methods of paving.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: October 3, 2023
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Eric W. Cochran, Nacu Hernandez, Austin Hohmann, Ronald Christopher Williams, Michael Forrester, Joseph H. Podolsky, Paul Ledtje, Conglin Chen
  • Patent number: 11702544
    Abstract: The present invention relates to an asphalt product that comprises an asphalt component and a plurality of pellets comprising a mixture of a ground tire rubber and an elastomeric polymer, where the density difference between the asphalt component and the plurality of pellets is less than 10%. The present invention further relates to a pellet comprising a ground tire rubber (“GTR”) and an elastomeric polymer mixed with the GTR, where the GTR has a density of less than 1.12 g/cm3. Also disclosed are methods of producing improved asphalt and paving a surface.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: July 18, 2023
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Eric W. Cochran, Nacu Hernandez, Ronald Christopher Williams
  • Patent number: 11685802
    Abstract: The present application relates to a multiblock copolymer comprising at least one PA block, at least one PB block, and at least one PC block. PC block is positioned between PA block and PB block, where PC block is a rubber block, and where PA represents a polymer block comprising one or more units of monomer A, PB represents a polymer block comprising one or more units of monomer B, and PC represents a polymer block comprising one or more units of monomer C, with monomers A and B being the same or different.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: June 27, 2023
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Nacu Hernandez, Eric W. Cochran, Ronald Christopher Williams, Austin Hohmann
  • Publication number: 20220315700
    Abstract: The present invention relates to a polymer comprising a repeating group having the structure of formula (I) wherein R, R1, R2, R3, R4, X, and s are as described herein and salt thereof. Also disclosed is a process of synthesizing such polymers.
    Type: Application
    Filed: June 15, 2022
    Publication date: October 6, 2022
    Inventors: Nacu Hernandez, Mengguo Yan, Eric William Cochran, John Edward Matthiesen, Jean-Philippe Tessonnier
  • Patent number: 11401377
    Abstract: The present invention relates to a polymer comprising a repeating group having the structure of formula (I) wherein R, R1, R2, R3, R4, X, and s are as described herein and salt thereof. Also disclosed is a process of synthesizing such polymers.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: August 2, 2022
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Nacu Hernandez, Mengguo Yan, Eric William Cochran, John Edward Matthiesen, Jean-Philippe Tessonnier
  • Patent number: 11370918
    Abstract: The present invention relates to relates to a method of producing an improved asphalt. This method includes providing an asphalt binder and providing a compound of formula (I): as described herein. The asphalt binder is mixed with the compound of formula (I) under conditions effective to produce an improved asphalt. Also disclosed are an asphalt product and a method of making asphalt material.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: June 28, 2022
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Ronald Christopher Williams, Joseph H. Podolsky, Nacu Hernandez, Eric W. Cochran, Austin Hohmann, Mohamed Elkashef
  • Publication number: 20220186032
    Abstract: The present invention relates to an asphalt product that comprises an asphalt component and a plurality of pellets comprising a mixture of a ground tire rubber and an elastomeric polymer, where the density difference between the asphalt component and the plurality of pellets is less than 10%. The present invention further relates to a pellet comprising a ground tire rubber (“GTR”) and an elastomeric polymer mixed with the GTR, where the GTR has a density of less than 1.12 g/cm3. Also disclosed are methods of producing improved asphalt and paving a surface.
    Type: Application
    Filed: December 27, 2021
    Publication date: June 16, 2022
    Inventors: Eric W. COCHRAN, Nacu HERNANDEZ, Ronald Christopher WILLIAMS
  • Publication number: 20220112130
    Abstract: Provided herein are an emulsified asphalt product and an emulsified coating product. Both emulsified products contain one or more rejuvenators of formula (I) or formula (X). The emulsified asphalt product is useful for improving the performance of aged or brittle resinous binders in paving applications while the emulsified coating product is similarly useful in roofing applications. Also provided herein is a treated bituminous pavement where the performance grade varies with depth.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 14, 2022
    Inventors: Ronald Christopher WILLIAMS, Eric W. COCHRAN, Theodore HUISMAN, Ashley F. BUSS, Irvin PINTO, Nacu HERNANDEZ, Joseph PODOLSKY, Michael J. FORRESTER, Maxwell D. STAVER, Baker W. KUEHL, Austin D. HOHMANN
  • Publication number: 20220105753
    Abstract: The present invention relates to a homopolymer, copolymer, block copolymer, and statistical copolymer comprising plural polyol monomeric units. The polyol monomeric units being acrylated and acylated or acetalized. The acrylated and acylated or acetalized polyol monomeric units have an average degree of acrylation which is 1 or more, but less than the number of the hydroxyl groups of the polyol and have an average degree of acylation or acetalization which is 1 or more, but less than the number of the hydroxyl groups of the polyol. The present invention also relates to a method of making the homopolymers, copolymers, block copolymers, and statistical copolymers, and using them in various applications, such as asphalt rubber modifiers, adhesives, or an additive in a fracking fluid for oil fracking.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Inventors: Eric W. COCHRAN, Nacu HERNANDEZ, Michael FORRESTER, Shailja GOYAL, Austin HOHMANN
  • Patent number: 11248076
    Abstract: The present invention relates to a homopolymer, copolymer, block copolymer, and statistical copolymer comprising plural polyol monomeric units. The polyol monomeric units being acrylated and acylated or acetalized. The acrylated and acylated or acetalized polyol monomeric units have an average degree of acrylation which is 1 or more, but less than the number of the hydroxyl groups of the polyol and have an average degree of acylation or acetalization which is 1 or more, but less than the number of the hydroxyl groups of the polyol. The present invention also relates to a method of making the homopolymers, copolymers, block copolymers, and statistical copolymers, and using them in various applications, such as asphalt rubber modifiers, adhesives, or an additive in a fracking fluid for oil fracking.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: February 15, 2022
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Eric W. Cochran, Nacu Hernandez, Michael Forrester, Shailja Goyal, Austin Hohmann
  • Patent number: 11242459
    Abstract: The present invention relates to an asphalt product that comprises an asphalt component and a plurality of pellets comprising a mixture of a ground tire rubber and an elastomeric polymer, where the density difference between the asphalt component and the plurality of pellets is less than 10%. The present invention further relates to a pellet comprising a ground tire rubber (“GTR”) and an elastomeric polymer mixed with the GTR, where the GTR has a density of less than 1.12 g/cm3. Also disclosed are methods of producing improved asphalt and paving a surface.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: February 8, 2022
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Eric W. Cochran, Nacu Hernandez, Ronald Christopher Williams
  • Publication number: 20220033305
    Abstract: The present application is directed to a composition that includes a polymer comprising two or more units of monomer A, with monomer A being a radically polymerizable plant oil, animal oil, synthetic triglyceride, or mixture thereof and an epoxidized vegetable oil, an epoxidized fatty acid, or an epoxidized fatty ester. The present application is also directed to further compositions, methods of producing a liquid cement composition, and methods of paving.
    Type: Application
    Filed: September 17, 2019
    Publication date: February 3, 2022
    Inventors: Eric W. COCHRAN, Nacu HERNANDEZ, Austin HOHMANN, Ronald Christopher WILLIAMS, Michael FORRESTER, Baker KUEHL, Conglin CHEN