| abstract |
A process for producing a photochromic optical lens and an optical lens are disclosed. The method comprises placing a photochromic laminate having a photochromic polyurethane layer prepared from a composition comprising a solid thermoplastic polyurethane, at least one isocyanate polyurethane prepolymer, and at least one photochromic compound into a lens mold cavity; and injecting a molten resin into the lens mold cavity; cooling the cavity. The optical lens comprises a first convex lens surface; a second lens surface opposite the first convex lens surface; and a photochromic polyurethane layer prepared from a solvent casting solution comprising a solid thermoplastic polyurethane, at least one isocyanate polyurethane prepolymer, and at least one photochromic compound. |