Photochromic substituted naphthopyran compounds
Photochromic substituted naphthopyran compounds
Photochromic tetraphenyl naphthodipyrans
Photochromic ultraviolet protective shield
Polyalkoxylated naphthopyrans
Polychromic substances and their use
Polymeric matrix compatibilized naphthopyrans
Polymerizable composition
Polymerizable polyalkoxylated naphthopyrans
Process for obtaining a photochromic compound and products obtai
Process for production of photochromic cured product
Process for the production of a photochromic object
Pyrano-quinolines, pyrano-quinolinones, combinations...