Patents by Inventor Per ENGVALL

Per ENGVALL 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).

  • Method for a laminated packaging material
    Patent number: 10350871
    Abstract: A method for providing a film laminate comprising a substrate and a polymer film, and suitable for forming a part of a laminated packaging material is provided. The method comprises forwarding a web of the substrate to pass through a lamination nip. The method further comprises casting the polymer film by applying a molten polymer material onto a cooling roller to at least partially solidify the molten polymer material to form the polymer film. Furthermore, the method comprises directly forwarding the polymer film to pass through the lamination nip, thereby laminating the polymer film onto the web of the substrate.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: July 16, 2019
    Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Fredrik Persson, Per Engvall
  • METHOD FOR A LAMINATED PACKAGING MATERIAL
    Publication number: 20170225444
    Abstract: A method for providing a film laminate comprising a substrate and a polymer film, and suitable for forming a part of a laminated packaging material is provided. The method comprises forwarding a web of the substrate to pass through a lamination nip. The method further comprises casting the polymer film by applying a molten polymer material onto a cooling roller to at least partially solidify the molten polymer material to form the polymer film. Furthermore, the method comprises directly forwarding the polymer film to pass through the lamination nip, thereby laminating the polymer film onto the web of the substrate.
    Type: Application
    Filed: October 16, 2015
    Publication date: August 10, 2017
    Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Fredrik PERSSON, Per ENGVALL