Polycarbonate-based security documents and/or documents of value with a hologram in the card body
AssigneeCovestro Deutschland AG
InventorsMarc-Stephan Weiser, Georgios Tziovaras, Thomas Fäcke, Friedrich-Karl Bruder, Dennis Hönel, Horst Berneth, Thomas Rölle
Life of this patent
Estimating the term…
Abstract
The invention relates to polycarbonate-based or copolycarbonate-based security documents and/or documents of value which contain at least one hologram integrated in the card body, and to a method for producing such security documents and/or documents of value.
Claims14
A document of security and/or value, comprising at least one layer (A1) comprising at least a polycarbonate or a copolycarbonate, at least one further layer (A2) comprising at least a polycarbonate or a copolycarbonate, and at least one layer (P) comprising at least one photopolymer formulation and incorporating a hologram, wherein the layer (P) is arranged over a partial area between layers A1 and A2, and the layers A1 and A2, of which at least one layer is of transparent design, are joined at least sectionally to one another, wherein at various locations the layer P has multiple isolated holes and wherein the holes are located in unexposed locations, and the two layers A1 and A2 are at least sectionally joined at these holes, wherein the document has at least one layer (K) having corresponding recesses at the same points as the layer (P), which comprises at least one adhesive.
Dependencies are inferred from the claim text.