Patents Assigned to Tetra Level Holdings & Finance S.A.
  • Gas barrier packaging laminate method for production thereof and packaging containers
    Patent number: 6569539
    Abstract: The invention relates to a packaging laminate having one or more gas barrier layers of starch or starch derivative providing an oxygen gas barrier property of 50, preferably 30 cm3/m2 at 24 h, 1 atm (23° C., 50% RH) or better, said gas barrier layer having a dry coating weight no more than 7 g/m2. The invention also relates to a method for producing such a packaging laminate and to packaging containers manufactured from the packaging laminate.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: May 27, 2003
    Assignee: Tetra Level Holdings & Finance S.A.
    Inventors: Matts Bentmar, Mikael Berlin, Ib Leth