| 简介 |
(57) Abstract : Describes a photochromic plastic article, e.g., an ophthalmic photochromic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., polymeric substrate, such as a thermoset or thermoplastic substrate, (2) a photochromic polymeric coating appended to a least one surface of the substrate, the photochromic polymeric coating containing a photochromic amount of at least one photochromic material, e.g., spirooxazine, naphthopyran and/or fulgide, and (3) a dentitric polyester acrylate film coherently appended to the photochromic coating. Describes also the aforedescribed photochromic article having an abrasion-re- istant coating affixed to the dentitric polyester acrylate film, e.g., an abrasion resistant coating comprising an organo silane; and a photochromic article having an antireflective coating affixed to the abrasion-resistant coating. |
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