BARRIER LAYER TO PREVENT THE LOSS OF ADDITIVES IN AN UNDERLYING LAYER

摘要

The present invention provides a protected layered system for a component assembly. The protected layered system includes a plastic panel and at least two protective layers formed integrally with the plastic panel. One protective layer is configured as a barrier layer that reduces the loss of an additive suspended, and not covalently bonded, in the structure of any underlying protective layer or the plastic panel. The weathering performance exhibited by the component assembly is similar for various colored or tinted plastic panels or protective layers.