| 摘要 |
A passively magnetic foil comprises layer (2) containing polymer material(s) and iron material(s). The iron material constitutes 50-80 wt.% and the layer is coated with coating material(s) on side(s) by extrusion in several layers. The coating material forms at least additional layer (3) directly on the layer. - Independent claims are also included for: - (a) notice device for posting information or advertisements on a supportive structure and comprising the inventive passively magnetic foil, where at least one actively magnetic substrate is fastened to the structure and at least one piece of the magnetic foil is applied to the substrate; and - (b) use of the notice device by affixing the magnetic substrate to a supporting structure, e.g. inner wall or an outer wall of a building, to a notice board that is free-standing or attached to some other substrate, on a part of a conveyance vehicle such as automobile, bus, subway carriage, a train carriage, and/or a road sign. |
