Patents by Inventor Donna Pennant

Donna Pennant 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).

  • Ink jet recording medium
    Patent number: 7521101
    Abstract: An ink jet recording media system is described which comprises at least one coating layer that comprises a copolymer or cooligomer, which copolymer or cooligomer comprises monomer units derived from at least one monomer selected from the group consisting of the acrylate and acrylamide monomers, at least one monomer selected from the group consisting of the amine containing ethylenically unsaturated monomers and at least one monomer selected from the group consisting of the polyacrylates of polyols. The copolymer or cooligomer is at least partially neutralized with acid. The media system exhibits excellent dye wash fastness, fast dry times, high gloss and excellent light fastness.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: April 21, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Andrew S. Naisby, Howard R. Dungworth, Donna Pennant, Joseph Suhadolnik
  • Ink jet recording medium
    Publication number: 20050032931
    Abstract: An ink jet recording media system is described which comprises at least one coating layer that comprises a copolymer or cooligomer, which copolymer or cooligomer comprises monomer units derived from at least one monomer selected from the group consisting of the acrylate and acrylamide monomers, at least one monomer selected from the group consisting of the amine containing ethylenically unsaturated monomers and at least one monomer selected from the group consisting of the polyacrylates of polyols. The copolymer or cooligomer is at least partially neutralized with acid. The media system exhibits excellent dye wash fastness, fast dry times, high gloss and excellent light fastness.
    Type: Application
    Filed: July 13, 2004
    Publication date: February 10, 2005
    Inventors: Andrew Naisby, Howard Dungworth, Donna Pennant, Joseph Suhadolnik