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...

Radiation detecting elements and method of detection

Rare metal compounds and mixtures of these

Rare metal compounds and mixtures of these

Red coloring hyperchromic 3H-naphtho[2,1-B]pyrans

Spiro-indoline oxazine compounds with photochromatic and photose

Spirofluorenopyrans

Spirooxazines and use thereof in the field of ophthalmic optics

Stabilized matrix for photochromic articles