Patents by Inventor John Vergara

John Vergara 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).

  • Renewable furan based amine curing agents for epoxy thermoset
    Patent number: 11629220
    Abstract: The present invention relates novel furan based amine cross-linkers with improved thermomechanical and water barrier properties. The novelty of this invention is the use of aromatic, and hydrophobic aliphatic aldehydes to bridge two furfuryl amines, which yields a diamine or tetra amines with a significantly enhanced hydrophobic character. These diamine cross-linkers exhibit enhanced water barrier properties and thermomechanical properties when cured with both commercial and synthetic epoxies.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: April 18, 2023
    Assignees: Drexel Unversity, The Government of the United States of America, as represented by The Secretary of the Army
    Inventors: Giuseppe R. Palmese, Santosh K. Yadav, John Vergara, John J. LaScala
  • RENEWABLE FURAN BASED AMINE CURING AGENTS FOR EPOXY THERMOSET
    Publication number: 20200172658
    Abstract: The present invention relates novel furan based amine cross-linkers with improved thermomechanical and water barrier properties. The novelty of this invention is the use of aromatic, and hydrophobic aliphatic aldehydes to bridge two furfuryl amines, which yields a diamine or tetra amines with a significantly enhanced hydrophobic character. These diamine cross-linkers exhibit enhanced water barrier properties and thermomechanical properties when cured with both commercial and synthetic epoxies.
    Type: Application
    Filed: August 21, 2018
    Publication date: June 4, 2020
    Applicants: DREXEL UNIVERSITY, The Government of the United States of America, as represented by The Secretary of the Army
    Inventors: Giuseppe R. Palmese, Santosh K. Yadav, John Vergara, John J. LaScala