Photochromic article

Details Photochromic article Photochromic article

G - Physics

02

B

G02B 5/23 (2006.01) C08K 5/1539 (2006.01) C08K 5/1545 (2006.01) C08K 5/3415 (2006.01) C09K 9/02 (2006.01)

Patent

CA 2124152

ABSTRACT OF THE DISCLOSURE A photochromic article comprises a transparent matrix composed of a material selected from acrylic resins and urethane resins, a first photochromic compound dispersed in the matrix and consisting of a composition selected from chromene derivatives, a second photochromic compound dispersed in the matrix and consisting of a composition selected from fulgide or fulgimide compounds, and a dye for coloring the matrix. The dye is adopted to color the matrix either in the color developed by a photochromic compound, with the fastest color fading speed, among the photochromic compounds, or the complementary color of the color developed by a photochromic compound, with the slowest color fading speed, among the photochromic compounds, or the mixed color of the colors developed by all of the photochromic compounds.

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