Multilayer body comprising I) a substrate layer, II) a metal layer bonded directly thereto and III) optionally a protective layer atop the metal layer, wherein the substrate layer comprises a composition obtainable by mixing components A) to D), wherein A) is a polycarbonate, B) is an unsized talc having a median particle diameter D50 of 0.01 to 9.5 μm, where the particle diameter D50 is determined by sedimentation analysis, C) is at least one anhydride-modified alpha-olefin polymer having an acid number of at least 30 mg KOH/g, determined by means of potentiometric titration with alcoholic potassium hydroxide solution according to DIN ISO 17025:2005, and an average molecular weight MW of 4000 to 40 000 g/mol, where the average molecular weight MW is determined by means of gel permeation chromatography in ortho-dichlorobenzene at 150°C with polystyrene calibration, and optionally D) a portion of the amount of component B) may be replaced by at least one further filler selected from the group consisting of a) an expanded graphite having a particle diameter D50 of less than 800 μm, b) a mixture of the aforementioned expanded graphite with unexpanded graphite, c) a mixture of the aforementioned expanded graphite with unexpanded graphite and boron nitride, d) a mixture of the aforementioned expanded graphite and boron nitride as further filler, where, in the case of graphite, up to 8 parts by weight of the amount of component B) may be replaced and where, in the case of boron nitride, up to 15 parts by weight of the amount of component B) may be replaced, wherein the amounts of components B) and C) prior to mixing with component C) are matched to one another such that, for every 10 parts by weight of component B), 0.10 to 1.4 parts by weight of component C) are used, and wherein the composition is free of graft polymers and polyesters. I) a substrate layer, II) a metal layer bonded directly thereto and III) optionally a protective layer atop the metal layer, A) is a polycarbonate, B) is an unsized talc having a median particle diameter D50 of 0.01 to 9.5 μm, where the particle diameter D50 is determined by sedimentation analysis, C) is at least one anhydride-modified alpha-olefin polymer having an acid number of at least 30 mg KOH/g, determined by means of potentiometric titration with alcoholic potassium hydroxide solution according to DIN ISO 17025:2005, and an average molecular weight MW of 4000 to 40 000 g/mol, where the average molecular weight MW is determined by means of gel permeation chromatography in ortho-dichlorobenzene at 150°C with polystyrene calibration, a) an expanded graphite having a particle diameter D50 of less than 800 μm, b) a mixture of the aforementioned expanded graphite with unexpanded graphite, c) a mixture of the aforementioned expanded graphite with unexpanded graphite and boron nitride, d) a mixture of the aforementioned expanded graphite and boron nitride as further filler, where, in the case of graphite, up to 8 parts by weight of the amount of component B) may be replaced and where, in the case of boron nitride, up to 15 parts by weight of the amount of component B) may be replaced, wherein the amounts of components B) and C) prior to mixing with component C) are matched to one another such that, for every 10 parts by weight of component B), 0.10 to 1.4 parts by weight of component C) are used, and wherein the composition is free of graft polymers and polyesters. as further filler, where, in the case of graphite, up to 8 parts by weight of the amount of component B) may be replaced and where, in the case of boron nitride, up to 15 parts by weight of the amount of component B) may be replaced, wherein the amounts of components B) and C) prior to mixing with component C) are matched to one another such that, for every 10 parts by weight of component B), 0.10 to 1.4 parts by weight of component C) are used, and wherein the composition is free of graft polymers and polyesters.