Patent ID: 7157135
Filing Date: 2007-01-02
Classification: B32B,C23C,Y10S,Y10T

Abstract:
1. An embossable film comprising: a base substrate film comprising polyethylene terephthalate (PET), or polypropylene and an embossable layer that is co-extruded with the base substrate film, comprises a polymer selected from the group consisting of PET, polypropylene, cellophane, acetate, nylon, polyamide, polvamide-imide, polyether sulfone and polyether ether ketone and has a melting point at least 10° C. lower than a melting point of the base substrate film; and a transparent high refractive index coating layer on the surface of the embossable layer, the coating layer having an index of refraction at least 0.3 higher than an index of refraction of the embossable layer, wherein the co-extruded embossable layer and base substrate film are biaxially oriented prior to application of the coating layer.