| abstract |
Method for producing a sheet structure comprising a first polycarbonate layer and a second polycarbonate layer comprising a UV-absorbing compound, (i) selecting a liquid formulation comprising a carrier such as trimellitate or a low molecular weight acrylic and UV-absorbing additive; (ii) when the first polymer material is in the molten state, for example mixing the liquid formulation and polycarbonate with an extruder. |