| 摘要 |
The invention relates to a multilayered portable data carrier. The inventive data carrier comprises a core film (1) and at least one covering film (2, 11) joined to the core film (1) by lamination. The covering film (2, 11) is comprised, at least in part, of a copolyester and/or of a crystalline, partially crystalline or microcrystalline polyester and/or of a polycarbonate. This data carrier is characterized in that the core film (1) has at least three coextruded layers (3, 4, 5) that are formed differently with regard to their thickness and/or their material composition. |
