Patents by Inventor Eugene L. Sheriff

Eugene L. Sheriff 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: 7160653
    Abstract: A positive-working imageable element comprises inner and outer layers and a radiation absorbing compound such as an IR absorbing dye. The inner layer includes a polymeric material that is removable using an alkaline developer. An ink receptive outer layer is not removable using an alkaline developer before its exposure to imaging radiation. The outer layer includes a polymer binder having pendant epoxy groups that are substantially unreacted during exposure.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: January 9, 2007
    Assignee: Eastman Kodak Company
    Inventors: Jianbing Huang, Shashikant Saraiya, Kevin B. Ray, Anthony P. Kitson, Eugene L. Sheriff, Andrew Krebs
  • Patent number: 7144661
    Abstract: Positive-working imageable elements comprise a radiation absorbing compound and inner and outer layers on a substrate having a hydrophilic surface. The inner layer comprises a polymer that is removable using an alkaline developer and in which from about 1 to about 50 mol % of its recurring units are derived from one or more of the ethylenically unsaturated polymerizable monomers represented by the following Structure (I): CH2?C(R1)C(?O)NR2(CR3R4)nOH ??(I) wherein R1, R2, R3, and R4 are independently hydrogen, lower alkyl, or phenyl, and n is 1 to 20. The imageable elements having improved resistance to development and printing chemicals and solvents.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: December 5, 2006
    Assignee: Eastman Kodak Company
    Inventors: Kevin B. Ray, Eugene L. Sheriff, Joanne Ray, Andrew Krebs
  • Patent number: 6858359
    Abstract: Multi-layer, positive working, thermally sensitive imageable elements, useful as lithographic printing plate precursors, are disclosed. The elements comprises a substrate, an underlayer over the substrate, and a top layer over the underlayer. The top layer comprises polymeric material, which is a solvent soluble novolac resin or a derivative thereof. The polymeric material is a (a) novolac that has a weight average molecular weight of at least 10,000, a derivative thereof functionalized with polar groups, or a derivative thereof functionalized with quadruple hydrogen bonding entities; (b) a solvent soluble m-cresol/p-cresol novolac resins that comprises at least 10 mol % p-cresol and has a weight average molecular weight of at least 8,000, a derivative thereof functionalized with polar groups, or a derivative thereof functionalized with quadruple hydrogen bonding entities; or (c) a mixture thereof. The imageable elements have increased scuff resistance and are thus less susceptible to damage during handling.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: February 22, 2005
    Assignee: Kodak Polychrome Graphics, LLP
    Inventors: Anthony P. Kitson, Kevin B. Ray, Eugene L. Sheriff
  • Publication number: 20040067432
    Abstract: Multi-layer, positive working, thermally sensitive imageable elements, useful as lithographic printing plate precursors, are disclosed. The elements comprises a substrate, an underlayer over the substrate, and a top layer over the underlayer. The top layer comprises polymeric material, which is a solvent soluble novolac resin or a derivative thereof. The polymeric material is a (a) novolac that has a weight average molecular weight of at least 10,000, a derivative thereof functionalized with polar groups, or a derivative thereof functionalized with quadruple hydrogen bonding entities; (b) a solvent soluble m-cresol/p-cresol novolac resins that comprises at least 10 mol % p-cresol and has a weight average molecular weight of at least 8,000, a derivative thereof functionalized with polar groups, or a derivative thereof functionalized with quadruple hydrogen bonding entities; or (c) a mixture thereof. The imageable elements have increased scuff resistance and are thus less susceptible to damage during handling.
    Type: Application
    Filed: October 4, 2002
    Publication date: April 8, 2004
    Inventors: Anthony P. Kitson, Kevin B. Ray, Eugene L. Sheriff
  • Patent number: 6117610
    Abstract: An infrared imaging composition contains two essential components, a non-basic infrared radiation absorbing material (such as carbon black), and a phenolic resin that is either mixed or reacted with an o-diazonaphthoquinone derivative. These compositions are useful in positive-working or negative-working imaging elements such as lithographic printing plates that can be adapted to direct-to-plate imaging procedures.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: September 12, 2000
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Eugene L. Sheriff, Paul R. West, Jeffery A. Gurney, Thap DoMinh
  • Patent number: 6063544
    Abstract: A positive-working lithographic printing plate is used to provide a positive image without a post-exposure baking step and without any floodwise exposure steps. The printing plate includes an imaging layer that is imageable using an infrared radiation laser. The imaging layer consists essentially of a phenolic resin and an infrared radiation absorbing compound.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: May 16, 2000
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Eugene L. Sheriff, Ralph S. Schneebeli, Thomas R. Jordan, Neil F. Haley