Photochromic optical element
First Claim
Patent Images
1. An optical element comprising:
- a) a rigid substrate;
b) an at least partial film of a photochromic adhesive comprising an at least partially adhesive material adapted to be thermoplastic and a photochromic amount of a photochromic material; and
c) an at least partial film of a first polymeric organic material connected to said film of photochromic adhesive.
1 Assignment
0 Petitions
Accused Products
Abstract
Described are optical elements made of a substrate having connected thereto an at least partial film of photochromic adhesive and an at least partial film of a polymeric organic material. Also described are optical elements made of a substrate having connected thereto an at least partial superstrate of a photochromic composite of a film of a first polymeric organic material and a film of a second polymeric organic material having an at least partial film of a photochromic adhesive placed between the films of first and second polymeric organic materials. Methods to prepare the optical elements are also described.
-
Citations
20 Claims
-
1. An optical element comprising:
-
a) a rigid substrate;
b) an at least partial film of a photochromic adhesive comprising an at least partially adhesive material adapted to be thermoplastic and a photochromic amount of a photochromic material; and
c) an at least partial film of a first polymeric organic material connected to said film of photochromic adhesive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A photochromic ophthalmic article comprising:
-
a) an ophthalmic lens;
b) an at least partial film of a photochromic adhesive comprising an at least partially adhesive material adapted to be substantially thermoplastic chosen from a pressure sensitive adhesive and a photochromic amount of a organic photochromic material;
c) an at least partial film of a thermoplastic polymeric organic material chosen from nylon, poly(vinyl acetate), vinyl chloride-vinyl acetate copolymer, poly (C1-C8 alkyl) acrylates, poly (C1-C8 alkyl) methacrylates, styrene-butadiene copolymer resin, poly(urea-urethane), polyurethane, polyterephthalate, polycarbonate, polycarbonate-silicone copolymer and mixtures thereof connected to said film of photochromic adhesive; and
d) a protective film connected to at least a portion of the surface of said film of thermoplastic polymeric organic material.
-
-
20. A photochromic ophthalmic article comprising:
-
a) an ophthalmic lens;
b) an at least partial superstrate of an at least partially sealed photochromic composite connected to said ophthalmic lens, said photochromic composite comprising;
i) an at least partial film of a first polymeric organic material chosen from nylon, poly(vinyl acetate), vinyl chloride-vinyl acetate copolymer, poly (C1-C8 alkyl) acrylates, poly (C1-C8 alkyl) methacrylates, styrene-butadiene copolymer resin, poly(urea-urethane), polyurethane, polyterephthalate, polycarbonate, polycarbonate-silicone copolymer and mixtures thereof;
ii) an at least partial film of a second polymeric organic material which is the same or different from the first polymeric organic material; and
iii) an at least partial film of photochromic adhesive comprising an at least partially adhesive material and a photochromic amount of an organic photochromic material, said film of photochromic adhesive being interposed between said films of the first and second polymeric organic materials; and
c) a protective film connected to at least a portion of the surface of said superstrate of a photochromic composite.
-
Specification