Patents by Inventor Ilca WEBSTER

Ilca WEBSTER 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).

  • Viscosity modifiers for energy curable inks
    Patent number: 12441898
    Abstract: The present invention provides energy curable thixotropic compositions comprising low amounts of 2,2,4-trimethyl-1,3-pentanediol isobutyrate (Texanol); 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (TXIB); or dipropylene glycol butyl ether (DPGBE mixes isomers), or combinations thereof. The addition of the selected solvents in amounts of about 0.5 wt % to 3 wt % reduced the low shear rate viscosity of the energy curable thixotropic compositions.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: October 14, 2025
    Assignee: Sun Chemical Corporation
    Inventors: Ramasamy Krishnan, David Klein, Ilca Webster
  • VISCOSITY MODIFIERS FOR ENERGY CURABLE INKS
    Publication number: 20250163285
    Abstract: The present invention provides energy curable thixotropic compositions comprising low amounts of 2,2,4-trimethyl-1,3-pentanediol isobutyrate (Texanol); 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (TXIB); or dipropylene glycol butyl ether (DPGBE mixes isomers), or combinations thereof. The addition of the selected solvents in amounts of about 0.5 wt % to 3 wt % reduced the low shear rate viscosity of the energy curable thixotropic compositions.
    Type: Application
    Filed: July 18, 2023
    Publication date: May 22, 2025
    Applicant: Sun Chemical Corporation
    Inventors: Ramasamy KRISHNAN, David KLEIN, Ilca WEBSTER