PHOTOCHROMIC POLYURETHANE LAMINATE

摘要

Photochromic polyurethane laminates and methods for the formation of same wherein a photochromic polyurethane layer of the laminate is interposed between two primer coated transparent resin sheets. The photochromic polyurethane laminates can be applied to polymeric surfaces or can be used independently as a photochromic element. These are capable of withstanding high temperatures and can be incorporated into plastic lenses by means of injection molding or casting.