Patents by Inventor Socrates Peter Pappas

Socrates Peter Pappas 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).

  • On-press developable IR sensitive printing plates using binder resins having polyethylene oxide segments
    Patent number: 6899994
    Abstract: The present invention relates to a polymerizable coating composition suitable for the manufacture of printing plates developable on-press. The coating composition comprises (i) a polymerizable compound and (ii) a polymeric binder comprising polyethylene oxide segments, wherein the polymeric binder is selected from the group consisting of at least one graft copolymer comprising a main chain polymer and polyethylene oxide side chains, a block copolymer having at least one polyethylene oxide block and at least one non-polyethylene oxide block, and a combination thereof. The invention is also directed to an imageable element comprising a substrate and the polymerizable coating composition.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: May 31, 2005
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Jianbing Huang, Heidi M. Munnelly, Shashikant Saraiya, Socrates Peter Pappas
  • Overcoat for light-sensitive materials comprising (1-vinylimidazole) polymer or copolymer
    Patent number: 6649323
    Abstract: A lithographic printing plate precursor comprises a substrate, a free radical polymerizable photosensitive layer comprising a light-sensitive composition on the substrate, and a water-soluble overcoat layer on the photosensitive layer, wherein the overcoat layer comprises polyvinyl alcohol, and a further component that is not amphoteric and is poly(1-vinylimidazole) or a copolymer of 1-vinylimidazole and at least one further monomer. The photosensitive layer comprises a free radical polymerizable component and a photoinitiator.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: November 18, 2003
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Socrates Peter Pappas, Harald Baumann, Udo Dwars, Celin M. Savariar-Hauck, Hans-Joachim Timpe
  • On-press developable IR sensitive printing plates using binder resins having polyethylene oxide segments
    Publication number: 20030064318
    Abstract: The present invention relates to a polymerizable coating composition suitable for the manufacture of printing plates developable on-press. The coating composition comprises (i) a polymerizable compound and (ii) a polymeric binder comprising polyethylene oxide segments, wherein the polymeric binder is selected from the group consisting of at least one graft copolymer comprising a main chain polymer and polyethylene oxide side chains, a block copolymer having at least one polyethylene oxide block and at least one non-polyethylene oxide block, and a combination thereof. The invention is also directed to an imageable element comprising a substrate and the polymerizable coating composition.
    Type: Application
    Filed: April 10, 2002
    Publication date: April 3, 2003
    Inventors: Jianbing Huang, Heidi M. Munnelly, Shashikant Saraiya, Socrates Peter Pappas
  • Overcoat for light-sensitive materials comprising (1-vinylimidazole) polymer or copolymer
    Publication number: 20020010264
    Abstract: The invention relates to water-soluble layers which in addition to polyvinyl alcohol comprise poly(1-vinylimidazole) or a copolymer of 1-vinylimidazole and at least one further monomer as a further component. These layers can be used as an overcoat on the light-sensitive layer of printing plates.
    Type: Application
    Filed: January 21, 2000
    Publication date: January 24, 2002
    Inventors: Socrates Peter Pappas, Harald Baumann, Udo Dwars, Celin M. Savariar-Hauck, Hans-Joachim Timpe
  • Offset printing plates having high print run stability
    Patent number: 6238831
    Abstract: The invention relates to coating solutions, processes for the preparation of a printing plate using these coating solutions as well as printing plates prepared in this manner; in particular, the invention relates to printing plates the photosensitive layer of which contains homogeneously distributed polymer particles.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: May 29, 2001
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Gerhard Hauck, Mathias Jarek, Jerome Kesselman, Socrates Peter Pappas