Patents Assigned to Brimstone Holding LLC
  • Highly pure thionated polymers
    Patent number: 11649324
    Abstract: Provided are thionated polymers comprising one or more aromatic groups and at least one Sx group, wherein x is 1-200, wherein the thionated polymer comprises about 50% by weight or less, based on the weight of the thionated polymer, of substituents on the backbone of the thionated polymer that absorb at a wavelength of about 700 to about 6200 nm. Also provided are substrates such as films, glass substrates, and optical devices comprising a thionated polymer and processes for preparing a thionated polymer described herein.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 16, 2023
    Assignee: Brimstone Holding LLC
    Inventors: Dmitriy A. Shaposhnikov, Rinat R. Akhmetshin