Patents by Inventor Michael T. Demko

Michael T. Demko 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).

  • Transparent fluoropolymer films
    Patent number: 11401389
    Abstract: In a first aspect, a transparent fluoropolymer film includes, a vinyl fluoride polymer, 2 to 8 wt % of an acrylate polymer, and 0.1 to 4 wt % of a triazine UV absorber. After heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5. In a second aspect, a transparent multilayer film includes a polymeric substrate film and a fluoropolymer film. The fluoropolymer film includes a vinyl fluoride polymer, 2 to 8 wt % of an acrylate polymer and 0.1 to 4 wt % of a triazine UV absorber. After heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: August 2, 2022
    Assignee: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Michael T Demko
  • TRANSPARENT FLUOROPOLYMER FILMS
    Publication number: 20190359783
    Abstract: In a first aspect, a transparent fluoropolymer film includes, a vinyl fluoride polymer, 2 to 8 wt % of an acrylate polymer, and 0.1 to 4 wt % of a triazine UV absorber. After heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5. In a second aspect, a transparent multilayer film includes a polymeric substrate film and a fluoropolymer film. The fluoropolymer film includes a vinyl fluoride polymer, 2 to 8 wt % of an acrylate polymer and 0.1 to 4 wt % of a triazine UV absorber. After heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5.
    Type: Application
    Filed: May 9, 2019
    Publication date: November 28, 2019
    Inventor: Michael T. Demko