Patents by Inventor Freddy DELAHAYE

Freddy DELAHAYE 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).

  • Liquid modified PET polyesters for lithographic inks
    Patent number: 10995193
    Abstract: The present invention is directed to a method of making liquid polyester resins, and the liquid polyester resins produced by the method. The liquid polyester resins are prepared by depolymerizing virgin, scrap, recycled or reclaimed polyethylene terephthalate (PET) via an alcoholysis reaction with one or more mono-alcohols and/or polyols; transesterifying the resulting polyol oligomer with vegetable oils or fatty acid alkyl esters; and re-polymerizing with acids or anhydrides. The present invention also provides ink and coating compositions, and overprint varnishes, comprising the liquid polyester resins of the invention.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: May 4, 2021
    Assignee: SUN CHEMICAL CORPORATION
    Inventors: Kai-Uwe Gaudl, Ralf Schuermann, Freddy Delahaye, Annabelle Petit
  • LIQUID MODIFIED PET POLYESTERS FOR LITHOGRAPHIC INKS
    Publication number: 20190127549
    Abstract: The present invention is directed to a method of making liquid polyester resins, and the liquid polyester resins produced by the method. The liquid polyester resins are prepared by de-polymerizing virgin, scrap, recycled or reclaimed polyethylene terephthalate (PET) via an alcoholysis reaction with one or more mono-alcohols and/or polyols; transesterifying the resulting polyol oligomer with vegetable oils or fatty acid alkyl esters; and re-polymerizing with acids or anhydrides. The present invention also provides ink and coating compositions, and overprint varnishes, comprising the liquid polyester resins of the invention.
    Type: Application
    Filed: May 22, 2017
    Publication date: May 2, 2019
    Applicant: SUN CHEMICAL CORPORATION
    Inventors: Kai-Uwe GAUDL, Ralf SCHUERMANN, Freddy DELAHAYE, Annabelle PETIT