Patents by Inventor Sarita Garware Ramsay

Sarita Garware Ramsay 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).

  • Process for dyeing a hydrolysis resistant polyester film
    Patent number: 11859060
    Abstract: The present disclosure relates to a process for dyeing a hydrolysis-resistant polyester film. The process comprises dyeing of a hydrolysis resistant polyester film in a dye bath comprising at least one coloring agent (dye), at least one polyhydric alcohol, and optionally at least one UV absorber to obtain a dyed film. The dyed film is subjected to quenching followed by cleaning and drying to obtain a dyed hydrolysis-resistant polyester film. The process of the present disclosure is simple, economical, improve hydrolysis resistance, and also retains the mechanical properties of the film when exposed to harsh environmental conditions.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: January 2, 2024
    Assignee: GARWARE HI-TECH FILMS LIMITED
    Inventors: Shashikant Bhalchandra Garware, Monika Shashikant Garware, Sonja Shashikant Garware, Sarita Garware Ramsay