Patents Assigned to Kaysersberg Packaging, S.A.
  • Patent number: 5098790
    Abstract: Synthetic resin panel consisting of a core layer (1) of polycarbonate resin covered on at least one of its outer sides by a storage layer (2) containing between 5 and 15% by weight of an UV absorber, and on that side of said storage layer facing away from said core layer, by a cover layer (3) of synthetic resin containing an UV absorber, wherein said UV absorber, incorporated in said cover layer (3), different from said UV absorber incorporated in said storage layer (2), is of low volatility and is present at a concentration exceeding 2% by weight.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: March 24, 1992
    Assignee: Kaysersberg Packaging, S.A.
    Inventors: Robert Diemunsch, Roland Zeller
  • Patent number: 5069738
    Abstract: Device for applying a protective film to a board consisting of two flat cover panels (2 and 3), coupled by partitions (4) integral with the panels, forming longitudinal cavities (5) comprising means for depositing a film of flexible material (7) on a first surface according to the longest dimensions of the board, so as to form a fold (71) at least over one of the ends onto which the cavities (5) open so as to cover the cavities with the fold.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: December 3, 1991
    Assignee: Kaysersberg Packaging, S.A.
    Inventors: Robert Ruemeli, Gerard Heitzler