| abstract |
The invention relates to opaque, colored multi-layer bodies having a substrate layer based on polycarbonate or polymethyl methacrylate. The compositions of the substrate layer contain a titanium dioxide having certain properties as a white pigment. In comparison with the white pigment Kronos® 2230, which is conventionally used as a white pigment for corresponding compositions and in particular is designed specially for polycarbonate, considerably higher weathering stability of the colored shaped bodies can be achieved, provided a UV-absorber-containing coating is applied to the substrate layer. The color stability and the gloss are maintained even after weathering, and brilliant colors can thus be ensured. |