Patents by Inventor Helen Thompson

Helen Thompson 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).

  • A METHOD OF RECYCLING POLY(VINYL BUTYRAL) FROM MULTILAYER POLY(VINYL BUTYRAL) SHEETS
    Publication number: 20240058994
    Abstract: Processes are disclosed for recovering stiff poly(vinyl butyral) from a plasticized poly(vinyl butyral) multilayer sheet containing the stiff poly(vinyl butyral) and soft poly(vinyl butyral). The processes include grinding the plasticized poly(vinyl butyral) multilayer sheet to obtain a granulate; adding additional plasticizer to the granulate to remove at least a portion of the soft poly(vinyl butyral); and physically separating the granulate from the resulting solution.
    Type: Application
    Filed: January 7, 2022
    Publication date: February 22, 2024
    Applicant: SOLUTIA INC.
    Inventors: YINONG MA, HELEN THOMPSON, BERT JOZEF CAMPO, JOHN JOSEPH D'ERRICO, PU ZHANG, SUNGKYUN SOHN
  • Polymer sheets and methods of controlling adhesion of polymer sheets to glass
    Publication number: 20050208315
    Abstract: The present invention is in the field of polymer sheets comprising poly(vinyl butyral) and sodium acetate and methods of producing and using the same, and more specifically, the present invention is in the field of polymer sheets comprising plasticized poly(vinyl butyral), sodium acetate, and an adhesion control agent.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 22, 2005
    Inventors: Bruce Wade, John D'Errico, Helen Thompson, Michael Yu