Patents Assigned to Pakcel Converters Limited
  • Patent number: 4287274
    Abstract: A flexible film laminate, according to the invention, can be applied directly to the cardboard tubing of dry cell batteries during the manufacture of same.In a preferred arrangement the laminate comprises, a first layer of a plastics film 1, a second layer of discrete areas of colored pigments 2, a third layer of adhesive 3, a fourth layer of a metallic deposit 4 on the surface of a fifth layer, said fifth layer of a plastics material 5, a sixth layer of adhesive 6, a layer of finely divided clay mineral particles 7, a layer of bleached kraft paper 8 and a final layer of uncured heat sensitive adhesive 9.
    Type: Grant
    Filed: September 26, 1979
    Date of Patent: September 1, 1981
    Assignee: Pakcel Converters Limited
    Inventors: Peter Ibbotson, John C. Smith, Colin Frodsham