EXTRUSION PROCESS FOR PROTECTIVE COATINGS FOR OUTDOOR SIDING PANELS AND THE LIKE

摘要

A process for making a protective and decorative surfacing film comprises extrusion coating a first optically clear layer (10) of uniform thickness onto a smooth surface of a carrier (12). The first layer is cooled and followed by coating with a second layer of pigmented material (22). The composite paint coat is transferred to a supportive backing sheet or panel, after which the carrier is separated from the paint coat, to expose the outer surface of the first layer as a high gloss surface with high distinctness-of-image, providing a transparent protective outer coat for the underlying pigmented second layer. Coating may be done by extrusion, coextrusion, or solvent casting.