Multi-layer plastic film, characterised in that - it has a core layer A containing at least one polycarbonate or copolycarbonate and/or a polyester or copolyester having a glass transition temperature T g from 80 °C to 200°C, wherein the glass transition temperature Tg is determined by means of differential scanning calorimetry according to standard DIN EN 61006 at a heating-rate of 20 K/min with definition of T g as the midpoint temperature (tangent method), and wherein the core layer A contains at least one copolyester that exhibits residues from (a) a dicarboxylic acid component comprising i) 70 mole % to 100 mole % terephthalic acid residues, ii) 0 mole % to 30 mole % aromatic dicarboxylic acid residues with up to 20 carbon atoms, and iii) 0 mole % to 10 mole % aliphatic dicarboxylic acid residues with up to 16 carbon atoms, and (b) a diol component comprising i) 5 mole % to 50 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and ii) 50 mole % to 95 mole % 1,4-cyclohexanedimethanol residues, - wherein the sum of the mole % of residues i) - iii) of the dicarboxylic acid component amounts to 100 mole % and the sum of the mole % of residues i) and ii) of the diol component amounts to 100 mole %, and this core layer A is located between two outer layers B containing at least one thermoplastic polyurethane exhibiting a hardness from 45 Shore D to 85 Shore D wherein the Shore hardness is determined in accordance with DIN EN ISO 868. - it has a core layer A containing at least one polycarbonate or copolycarbonate and/or a polyester or copolyester having a glass transition temperature T g from 80 °C to 200°C, wherein the glass transition temperature Tg is determined by means of differential scanning calorimetry according to standard DIN EN 61006 at a heating-rate of 20 K/min with definition of T g as the midpoint temperature (tangent method), and wherein the core layer A contains at least one copolyester that exhibits residues from (a) a dicarboxylic acid component comprising i) 70 mole % to 100 mole % terephthalic acid residues, ii) 0 mole % to 30 mole % aromatic dicarboxylic acid residues with up to 20 carbon atoms, and iii) 0 mole % to 10 mole % aliphatic dicarboxylic acid residues with up to 16 carbon atoms, and (b) a diol component comprising i) 5 mole % to 50 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and ii) 50 mole % to 95 mole % 1,4-cyclohexanedimethanol residues, (a) a dicarboxylic acid component comprising i) 70 mole % to 100 mole % terephthalic acid residues, ii) 0 mole % to 30 mole % aromatic dicarboxylic acid residues with up to 20 carbon atoms, and iii) 0 mole % to 10 mole % aliphatic dicarboxylic acid residues with up to 16 carbon atoms, and i) 70 mole % to 100 mole % terephthalic acid residues, ii) 0 mole % to 30 mole % aromatic dicarboxylic acid residues with up to 20 carbon atoms, and iii) 0 mole % to 10 mole % aliphatic dicarboxylic acid residues with up to 16 carbon atoms, and (b) a diol component comprising i) 5 mole % to 50 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and ii) 50 mole % to 95 mole % 1,4-cyclohexanedimethanol residues, i) 5 mole % to 50 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and ii) 50 mole % to 95 mole % 1,4-cyclohexanedimethanol residues, - wherein the sum of the mole % of residues i) - iii) of the dicarboxylic acid component amounts to 100 mole % and the sum of the mole % of residues i) and ii) of the diol component amounts to 100 mole %, and this core layer A is located between two outer layers B containing at least one thermoplastic polyurethane exhibiting a hardness from 45 Shore D to 85 Shore D wherein the Shore hardness is determined in accordance with DIN EN ISO 868.