Patent 7157135 was granted and assigned to Toray Plastics (America), Inc. on January, 2007 by the United States Patent and Trademark Office.
An embossable film for creating holograms and diffraction gratings and methods of producing the embossable films are provided. The embossable film includes a base layer and a co-extruded embossable layer that is coated with a transparent high refractive index (HRI) coating prior to embossing.