Patents by Inventor Mehmet Ali Gulgun

Mehmet Ali Gulgun 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: 8986594
    Abstract: The present invention relates to metal coated nano-fibres obtained by a process that includes electrospinning and to the use of said metal coated nano-fibres. The process is characterised in that a polymer nano-fibre with functional groups providing the binding ability to a reducing reagent is prepared by electrospinning at ambient conditions. Then this is contacted with a reducing agent, thereby opening the epoxy ring on the surface of polymer nano-fibre and replacing with the reducing agent and the reducing agent modified film is reacted with metal solution in alkaline media. Finally the electrospun mat is treated with water to open the epoxy rings in the structure and crosslinking the chains to provide integrity.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: March 24, 2015
    Assignee: Sabanci Universitesi
    Inventors: Mustafa Muammer Demir, Mehmet Ali Gulgun, Yusuf Ziya Menceloglu
  • Patent number: 8309479
    Abstract: The present invention relates to metal coated nano-fibers obtained by a process that includes electrospinning and to the use of said metal coated nano-fibers. The process is characterized in that a polymer nano-fiber with functional groups providing the binding ability to a reducing reagent is prepared by electrospinning at ambient conditions. Then this is contacted with a reducing agent, thereby opening the epoxy ring on the surface of polymer nano-fiber and replacing with the reducing agent and the reducing agent modified film is reacted with metal solution in alkaline media. Finally the electrospun mat is treated with water to open the epoxy rings in the structure and crosslinking the chains to provide integrity.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: November 13, 2012
    Assignee: Sabanci Unversitesi
    Inventors: Mustafa Muammer Demir, Mehmet Ali Gulgun, Yusuf Ziya Menceloglu
  • Publication number: 20110201240
    Abstract: The present invention relates to metal coated nano-fibres obtained by a process that includes electrospinning and to the use of said metal coated nano-fibres. The process is characterised in that a polymer nano-fibre with functional groups providing the binding ability to a reducing reagent is prepared by electrospinning at ambient conditions. Then this is contacted with a reducing agent, thereby opening the epoxy ring on the surface of polymer nano-fibre and replacing with the reducing agent and the reducing agent modified film is reacted with metal solution in alkaline media. Finally the electrospun mat is treated with water to open the epoxy rings in the structure and crosslinking the chains to provide integrity.
    Type: Application
    Filed: April 25, 2011
    Publication date: August 18, 2011
    Inventors: Mustafa Muammer DEMIR, Mehmet Ali Gulgun, Yusuf Ziya Menceloglu
  • Publication number: 20110171565
    Abstract: The invention relates a method for synthesizing carbon nanofibers containing catalytic material particles characterized in that it comprises the following steps: a) electrospinning a polymer solution and a catalytic material precursor for obtaining polymer fibers containing catalytic material precursor particles, b) reducing the product obtained in a) with a reducing agent to form polymer fibers containing catalytic material particles, c) heat treating the product obtained in b) for converting the polymer fibers containing catalytic material particles into carbon fibers containing catalytic material particles. The invention also relates to the intermediate products and products obtained by this method and use of these in various applications.
    Type: Application
    Filed: June 8, 2007
    Publication date: July 14, 2011
    Inventors: Burak Birkan, Yusuf Ziya Menceloglu, Mehmet Ali Gulgun
  • Patent number: 7951425
    Abstract: The present invention relates to a process for the metal coating of nano-fibers by electrospinning, to the metal coated nano-fibers obtained by this process and to the use of said metal coated nano-fibers. The process is characterized in that a polymer nano-fiber with functional groups providing the binding ability to a reducing reagent is prepared by electrospinning at ambient conditions. Then this is contacted with a reducing agent, thereby opening the epoxy ring on the surface of polymer nano-fiber and replacing with the reducing agent and the reducing agent modified film is reacted with metal solution in alkaline media. Finally the electrospun mat is treated with water to open the epoxy rings in the structure and crosslinking the chains to provide integrity.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: May 31, 2011
    Assignee: Sabanci Universitesi
    Inventors: Mustafa Muammer Demir, Mehmet Ali Gulgun, Yusuf Ziya Menceloglu
  • Patent number: 6482387
    Abstract: Described are preferred polymerized organic-inorganic processes for producing mixed metal oxide powders suitable for use in the ceramics and related industries. The preferred processes employ a non-chelating polymer such as polyvinyl alcohol or polyalkylene glycol as a carrier and can provide single-phase, mixed oxide powders in high yields at relatively low temperatures.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: November 19, 2002
    Inventors: Mehmet Ali Gülgün, Waltraud M. Kriven, My Hoang Nguyen