Multilayer composites having improved physical properties

The invention relates to a multilayer composite body, comprising (i) a cover layer (1) having a layer thickness of 5-50 [mu]m and comprising an acrylic polymer, (ii) an intermediate layer (2) arranged beneath the cover layer, which intermediate layer comprises a thermoplastic material that, at a layer thickness of 3 mm, exhibits a spectral transmission of at least 80% in the entire wavelength range from 380 nm to 780 nm, measured on undyed sample bodies according to ISO 13468-2, and has a glass transition temperature that, defined by the respective "midpoint temperature", measured by means of the DSC method according to ISO 11357-2 (1999-3 issue version), is at least 30 DEG C higher with respect to the acrylic polymer of the covering layer (1), (iii) a substrate layer (3) comprising a thermoplastic material that has a glass transition temperature that, defined by the particular "midpoint temperature", measured by means of the DSC method according to ISO 11357-2 (1999-3 issue version) is at least 30 DEG C high