| abstract |
Multilayer composite material, which comprises as components: (A) a plastic or metal sheet, (B) at least one layer of a joint, and (C) a polyurethane layer that has capillaries that cross the entire thickness of the layer of polyurethane, where the polyurethane layer (C) has an average thickness in the range of 15 to 300 μm and a motif, where a plastic sheet is a flat structure of a synthetic polymer that has a thickness of 0.5 μm to 1 mm , and where the bonding layer (B) is a layer of a hardened organic adhesive. |