Photochromic optical article
First Claim
1. A photochromic article comprising:
- (a) a rigid substrate,(b) a photochromic organic polymeric coating appended to at least a portion of at least one surface of said substrate, said polymeric coating comprising a photochromic amount of at least one photochromic material, and(c) a transparent dendritic polyester acrylate film superposed on said photochromic polymeric coating.
2 Assignments
0 Petitions
Accused Products
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 at 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 dendritic polyester acrylate film coherently appended to the photochromic coating. Describes also the aforedescribed photochromic article having an abrasion-resistant coating affixed to the dendritic 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.
150 Citations
56 Claims
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1. A photochromic article comprising:
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(a) a rigid substrate, (b) a photochromic organic polymeric coating appended to at least a portion of at least one surface of said substrate, said polymeric coating comprising a photochromic amount of at least one photochromic material, and (c) a transparent dendritic polyester acrylate film superposed on said photochromic polymeric coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A photochromic:
- article comprising;
(a) a transparent rigid organic polymeric substrate, (b) a photochromic organic polymeric coating appended to at least a portion of at least one surface of said polymeric substrate, said polymeric coating comprising a photochromic amount of at least one organic photochromic material, and (c) a transparent dendritic polyester acrylate film coherently appended to said photochromic polymeric coating. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35)
- article comprising;
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36. A photochromic article comprising:
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(a) a transparent organic polymeric substrate chosen from thermoset substrates prepared from polymerizable compositions comprising allyl diglycol carbonate monomer(s), substrates prepared from thermoplastic polycarbonates, substrates prepared from polyurea urethanes or substrates prepared from compositions comprising the reaction product of polyfunctional isocyanate(s) and/or isothiocyanates with polythiols or polyepisulfide monomer(s), said substrate having a refractive index of from 1.48 to 1.74, (b) a transparent photochromic organic polymeric coating appended to at least one surface of said polymeric substrate, said polymeric coating comprising a photochromic amount of at least one organic photochromic material chosen from spirooxazines, benzopyrans, naphthopyrans, fulgides, metal dithizonates, diarylethenes, or mixtures of such photochromic materials, said photochromic polymeric coating having a thickness of from 5 to 200 microns, and (c) radiation-cured, transparent dendritic polyester acrylate film coherently appended to said photochromic polymeric coating. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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Specification