ELASTOMER SANDWICH SYSTEMS AND METAL COMPOSITE ELEMENTS

The invention relates to elastomer sandwich systems containing at least two components, wherein one component is (i) a thermoplastic polyurethane functioning as a cover layer and, adhering thereto over its area, the second component is (ii) a noncellular cast polyurethane having a density of from 800 to 1800 kg/m3 functioning as a carrier layer, wherein at least one component of the elastomer sandwich system has a tear propagation resistance in accordance with ISO 34-1 of from 30 kN/m to 85 kN/m and an abrasion loss in accordance with ISO 4649 of from 50 mm3 to 5 mm3 and in addition at least the two components have a rebound resilience in accordance with DIN 53512 of 35%-70%, and a process for the production thereof. The invention further relates to metal composite elements containing elastomer sandwich systems, a process for the production thereof and the use thereof as lining elements in the transport sector and mining and mine sector, in particular in hoppers and conveyor belts. Elastomer sandwich systems can also be used as protection for loading floors of trucks.