Coating with photochromic properties, method for obtaining said coating and applicable to optical articles and use glass surfaces

摘要

Coating with photochromic properties, method for obtaining said coating and Use applicable to optical articles and glass surfaces The coating is formed by the combination of the following three elements: (1) a polymeric matrix, typically rigid, deposited on the surface of interest; (2) micro- and / or nanocapsules dispersed hollow and sealed within said matrix; and (3) solutions of photochromic compounds (selected from a group comprising spiroxazine, azobenzenos or chromenes) in a nonreactive liquid solvent (with the photochromic compound and the capsule wall) that are encapsulated within the micro- or nanocapsules mentioned.