Patents by Inventor Mangesh Nar

Mangesh Nar 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).

  • CARBON FIBERS DERIVED FROM POLY-(CAFFEYL ALCOHOL) (PCFA)
    Publication number: 20180142380
    Abstract: Poly-(caffeyl alcohol) (PCFA), also known as C-lignin, is a promising new source of both carbon fibers and pure carbon. PCFA can be used to produce carbon fibers by direct electrospinning, without blending with another polymer to reduce breakage. Analyses have shown that the carbon obtained from PCFA is superior to that obtained from other lignins. The fibers formed from PCFA are smoother, have a narrower diameter distribution, and show very low defects. The PCFA can be obtained by extraction from plant seed coats. Examples of these plants include the vanilla orchid, Vanilla planifolia, and Jatropha curcas. The fibers may be formed through electrospinning, although other methods for forming the fibers, such as extrusion with a carrier polymer, could be used. The fibers may then be carbonized to increase the carbon yield.
    Type: Application
    Filed: January 2, 2018
    Publication date: May 24, 2018
    Applicant: University of North Texas
    Inventors: Richard Dixon, Nandika D'Souza, Fang Chen, Mangesh Nar
  • Methods for producing carbon fibers from poly-(caffeyl alcohol)
    Patent number: 9890480
    Abstract: Poly-(caffeyl alcohol) (PCFA), also known as C-lignin, is a promising new source of both carbon fibers and pure carbon. PCFA can be used to produce carbon fibers by direct electrospinning, without blending with another polymer to reduce breakage. Analyses have shown that the carbon obtained from PCFA is superior to that obtained from other lignins. The fibers formed from PCFA are smoother, have a narrower diameter distribution, and show very low defects. The PCFA can be obtained by extraction from plant seed coats. Examples of these plants include the vanilla orchid, Vanilla planifolia, and Jatropha curcas. The fibers may be formed through electrospinning, although other methods for forming the fibers, such as extrusion with a carrier polymer, could be used. The fibers may then be carbonized to increase the carbon yield.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: February 13, 2018
    Assignee: UNIVERSITY OF NORTH TEXAS
    Inventors: Richard Dixon, Nandika D'Souza, Fang Chen, Mangesh Nar
  • CARBON FIBERS DERIVED FROM POLY-(CAFFEYL ALCOHOL) (PCFA)
    Publication number: 20150354100
    Abstract: Poly-(caffeyl alcohol) (PCFA), also known as C-lignin, is a promising new source of both carbon fibers and pure carbon. PCFA can be used to produce carbon fibers by direct electrospinning, without blending with another polymer to reduce breakage. Analyses have shown that the carbon obtained from PCFA is superior to that obtained from other lignins. The fibers formed from PCFA are smoother, have a narrower diameter distribution, and show very low defects. The PCFA can be obtained by extraction from plant seed coats. Examples of these plants include the vanilla orchid, Vanilla planifolia, and Jatropha curcas. The fibers may be formed through electrospinning, although other methods for forming the fibers, such as extrusion with a carrier polymer, could be used. The fibers may then be carbonized to increase the carbon yield.
    Type: Application
    Filed: June 3, 2015
    Publication date: December 10, 2015
    Inventors: Richard Dixon, Nandika D'Souza, Fang Chen, Mangesh Nar