Patents by Inventor Katherine Augusta Hofmann

Katherine Augusta Hofmann 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).

  • HOT-FILLABLE ARTICLES MADE FROM MULTILAYERED THERMOFORMABLE FILM AND SHEET
    Publication number: 20230219328
    Abstract: The present disclosure relates to hot-fillable articles made from multilayered thermoformable film and sheet comprising polyester and copolyester compositions which comprise residues of terephthalic acid, 1,4- cyclohexanedimethanol (CHDM), 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD), ethylene glycol (EG), and diethylene glycol (DEG), in certain compositional ranges having certain advantages and improved performance properties.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 13, 2023
    Applicant: Eastman Chemical Company
    Inventors: Ian David Fearnley, Marc Alan Strand, Katherine Augusta Hofmann
  • BLENDS OF COPOLYESTERS HAVING RECYCLED CONTENT AND HIGH HEAT RESISTANCE
    Publication number: 20220186021
    Abstract: Described are polymer compositions that include a blend of recycled poly(ethylene terephthalate) (rPET) and a copolyester based on monomers that include on terephthalic acid (TPA), ethylene glycol (EG) and 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD), wherein the blend has improved engineering properties compared to the rPET material.
    Type: Application
    Filed: May 6, 2020
    Publication date: June 16, 2022
    Applicant: Eastman Chemical Company
    Inventors: Katherine Augusta Hofmann, John Thomas Hofmann, Douglas Weldon Carico