A cold-workable laminate consists of an aluminium foil (26, 46) whose two sides are coated with a plastic materials and which is used for producing blister bottom parts for blister packaging of pharmaceutical products lyophilised on the bottom. The laminate comprises the following layer sequence: a layer A (22)/ layer B (24)/ aluminium foil 26/, layer C (28)/ and a layer D (30), wherein the layer (A) is embodied in the form of a film consisting of a COC/PE blend or coextruded COC-PE and has the thickness ranging from 10 to 100 µm, the layers B and C are embodied in the form of oPA, oPP or PET foils whose thickness ranges from 10 to 50 µm, the layer D is a foil consisting of the COC/PE blend, coextruded COC-PE or PVC whose thickness ranges from 10 to 100 µm, the layers A and D are different or the layer A (22), layer B (24)/ aluminium foil (26)/, layer C (28)/ and the layer D (30), wherein the layer A is an oPP or PET foil whose thickness ranges from 4 to 20 µm, the layers B and C are the oPP or PET foils whose thickness ranges from 10 to 50 µm and the layer D is embodied in the form of a foil of a COC/PE blend or coextruded COC-PE whose thickness ranges from 10 to 100 µm, or the layer B (44)/ aluminium foil (426)/, layer C (48)/ and the layer D (50), wherein the layers B and C are the oPP or PET foils whose thickness ranges from 10 to 50 µm and the layer D is embodied in the form of an PE coating whose grammage ranges from 8 to 40 g/m2 or the layer B (44)/ aluminium foil (46)/, layer C (48)/ and the layer D (50), wherein the layers B and C are the oPP or PET whose thickness ranges from 10 to 50 µm and the layer D is embodied in the form of a foil of a COC/PE blend or coextruded COC-PE whose thickness ranges from 10 to 100 µm.
