Patents by Inventor Asad Aslam Khan

Asad Aslam Khan 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).

  • Reinforcement barrier coatings
    Patent number: 11118080
    Abstract: The present invention discloses gas and moisture vapor barrier coating compositions that comprise an amine modified polyvinyl alcohol and an acetoacetate modified polyvinyl. The barrier coatings of the invention exhibit enhanced gas and moisture vapor properties. The barrier coatings of the invention maintain gas and moisture vapor properties even after repeated flexing of a coated substrate.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: September 14, 2021
    Assignee: Sun Chemical Corporation
    Inventors: Asad Aslam Khan, Michael William Leonard
  • REINFORCEMENT BARRIER COATINGS
    Publication number: 20190352530
    Abstract: The present invention discloses gas and moisture vapor barrier coating compositions that comprise an amine modified polyvinyl alcohol and an acetoacetate modified polyvinyl. The barrier coatings of the invention exhibit enhanced gas and moisture vapor properties. The barrier coatings of the invention maintain gas and moisture vapor properties even after repeated flexing of a coated substrate.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 21, 2019
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Asad Aslam Khan, Michael William Leonard
  • Gas barrier coating having improved bond strength
    Patent number: 8268108
    Abstract: In order to maintain adequate bond strength of a composite in which a gas barrier coating comprising a clay dispersion and a polymer solution or dispersion of a PVA and/or EVA is positioned between two flexible plastics films using an adhesive, it is necessary that the clay dispersion and the polymer solution or dispersion should be kept separate until shortly before they are to be applied.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: September 18, 2012
    Assignee: Sun Chemical Limited
    Inventors: Derek Ronald Illsley, Asad Aslam Khan, Michael William Leonard, Graham Trevor Street
  • OXYGEN BARRIER COATING COMPOSITION
    Publication number: 20100323189
    Abstract: Good bond strength and shelf life in a composition for preparing a gas barrier coating comprising an aqueous dispersion of a clay and a polyvinyl alcohol and/or an ethylene vinyl alcohol copolymer are achieved by including in the composition a poly(ethyleneimine).
    Type: Application
    Filed: February 6, 2009
    Publication date: December 23, 2010
    Inventors: Derek Ronald Illsley, Asad Aslam Khan, Graham Trevor Street
  • GAS BARRIER COATING HAVING IMPROVED BOND STRENGTH
    Publication number: 20100189944
    Abstract: In order to maintain adequate bond strength of a composite in which a gas barrier coating comprising a clay dispersion and a polymer solution or dispersion of a PVA and/or EVA is positioned between two flexible plastics films using an adhesive, it is necessary that the clay dispersion and the polymer solution or dispersion should be kept separate until shortly before they are to be applied.
    Type: Application
    Filed: August 24, 2007
    Publication date: July 29, 2010
    Applicant: Sun Chemical B.V.
    Inventors: Derek Ronald Illsley, Asad Aslam Khan, Michael William Leonard, Graham Trevor Street
  • THERMALLY RESISTANT GAS BARRIER LAMELLAE
    Publication number: 20100062117
    Abstract: A coating composition comprising a silylated polyvinyl alcohol, a colloidal silica and a water-dispersible or water-soluble aminoplast resin in an aqueous vehicle may be coated on a substrate with a layer of an inorganic compound to form a gas barrier lamella.
    Type: Application
    Filed: October 25, 2006
    Publication date: March 11, 2010
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Derek Ronald Illsley, Michael William Leonard, Asad Aslam Khan