US Patent No: 4,367,170
Number of patents in Portfolio can not be more than 2000
Stabilized photochromic materials
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Jan 4, 1983
Issued date -
Jan 24, 1975
filing date -
05/543,711
serial no -
Expired
status
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Abstract
Organic photochromic materials comprising a photochromic dye and a resinous material can be stabilized with a protective coating which will protect them from deactivation by exposure to moisture, oxygen, various plastic host materials, reactive chemicals or even normal atmospheric conditions. Useful organic photochromic dyes include the spiropyrans, the spirooxazines, the metal dithizonates, the phenazines, the phenothiazines and other known photochromic compositions. Useful resinous materials include vinyl-type thermoplastics, cellulosic materials, polyesters, epoxy resins and aminoplast resins. The encapsulated photochromic materials of the invention comprise an organic photochromic dye in combination with an organic resinous material enclosed within an outer shell of an inorganic material and find use in the preparation of photochromic plastic films, sheets, ophthalmic lenses such as lenses for sunglasses and in camera lenses and filters.
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First Claim
Related Publications
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
| Patent Owner | Address | Total Patents |
|---|---|---|
| AO, INC. | SOUTHBRIDGE, MA | 4 |
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Chu, Nori Y C | Shrewsbury, MA | 8 | 549 |
| Hovey, Richard J | Sturbridge, MA | 5 | 380 |
| Snitzer, Elias | Piscataway, NJ | 40 | 1615 |
| Uhlmann, Donald R | Tucson, AZ | 14 | 163 |
Cited Art
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Patent Citation Ranking
Forward Cites
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,973,093 Polymerizable polyol (allyl carbonate) composition | 6 | 1996 | |
| 5,965,680 Optical resin composition from polyol((meth)acryloyl carbonate) monomer | 5 | 1996 | |
| 5,739,243 Polymerizable composition | 16 | 1996 | |
| 5,917,006 Optical resin composition | 14 | 1998 | |
| 5,976,422 Optical resin composition | 13 | 1998 | |
| 5,942,158 One-component optical resin composition | 14 | 1998 | |
| 5,932,681 Method of preparing an optical polymerizate | 17 | 1998 | |
| 5,981,634 Method of preparing photochromic articles | 7 | 1998 | |
| 6,068,797 Method of preparing a shaped article having a photochromic coating thereon | 34 | 1998 | |
| 6,316,570 Polymerizable composition of aliphatic polyol (allyl carbonate) | 0 | 1999 | |
| 6,342,571 High refractive index optical resin composition | 16 | 1999 | |
| 6,506,488 Aminoplast resin photochromic coating composition and photochromic articles | 49 | 1999 | |
| 6,432,544 Aminoplast resin photochromic coating composition and photochromic articles | 53 | 1999 | |
| 6,506,864 Polymerizable composition of allyl functional monomers | 1 | 2000 | |
| 7,098,290 Method of preparing an optical polymerizate | 3 | 2000 | |
| 7,087,698 Method of preparing an optical polymerizate | 0 | 2000 | |
| 6,631,021 Polyfunctional thiirane compounds | 7 | 2001 | |
| 6,733,887 Photochromic coated high impact resistant articles | 13 | 2002 | |
| 7,144,969 Impact resistant polyureaurethane and polyureaurethane prepolymer having low NCO/OH ratio | 10 | 2002 | |
| 7,214,754 Polymerizable polyol (allyl carbonate) compositions | 0 | 2003 | |
| 7,411,034 Sulfide-containing polythiols | 0 | 2005 | |
| 7,044,600 Polarizing devices and methods of making the same | 0 | 2005 | |
| 8,017,720 Sulfur-containing oligomers and high index polyurethanes prepared therefrom | 0 | 2005 | |
| 7,466,469 Polarizing, photochromic devices and methods of making the same | 1 | 2006 | |
| 7,429,105 Polarizing, photochromic devices and methods of making the same | 4 | 2006 | |
| 7,394,585 Polarizing, photochromic devices and methods of making the same | 1 | 2006 | |
| 7,359,104 Polarizing, photochromic devices and methods of making the same | 0 | 2006 | |
| 7,349,137 Polarizing, photochromic devices and methods of making the same | 0 | 2006 | |
| 7,349,138 Polarizing, photochromic devices and methods of making the same | 2 | 2006 | |
| 8,399,094 Multilayer laminated articles including polyurethane and/or poly(ureaurethane) layers and methods of making the same | 0 | 2006 | |
| 8,399,559 Polyurethanes, articles and coatings prepared therefrom and methods of making the same | 0 | 2006 | |
| 8,349,986 Poly(ureaurethane)s, articles and coatings prepared therefrom and methods of making the same | 0 | 2006 | |
| 7,696,296 Compositions and articles prepared from the thioether functional oligomeric polythiols | 0 | 2007 | |
| 7,687,597 Thioether functional oligomeric polythiols and articles prepared therefrom | 0 | 2007 | |
| 7,553,925 Thioether functional oligomeric polythiols and articles prepared therefrom | 0 | 2007 | |
| 7,491,790 Sulfide-containing polythiols | 0 | 2008 | |
| 8,207,286 Methods for preparing polyurethanes | 0 | 2009 | |
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| 7,452,611 Photochromic optical article | 5 | 2002 | |
| 7,320,826 Photochromic articles with reduced temperature dependency and methods for preparation | 12 | 2003 | |
| 7,262,295 Indeno-fused photochromic naphthopyrans, naphthols and photochromic articles | 7 | 2003 | |
| 7,166,357 Photochromic articles that activate behind ultraviolet radiation blocking transparencies and methods for preparation | 5 | 2003 | |
| 7,094,368 Pyrano-quinolines, pyrano-quinolinones, combinations thereof, photochromic compositions and articles | 5 | 2003 | |
| 7,097,303 Polarizing devices and methods of making the same | 7 | 2004 | |
| 7,811,480 Photochromic optical article | 0 | 2004 | |
| 7,410,691 Photochromic optical article | 5 | 2004 | |
| 7,261,843 Photochromic optical article | 2 | 2004 | |
| 7,189,456 Photochromic optical article | 14 | 2004 | |
| 7,342,112 Photochromic compounds | 9 | 2004 | |
| 7,256,921 Polarizing, photochromic devices and methods of making the same | 28 | 2004 | |
| 7,584,630 Photochromic ocular devices | 0 | 2005 | |
| 7,097,304 Polarizing devices and methods of making the same | 0 | 2005 | |
| 7,978,391 Polarizing, photochromic devices and methods of making the same | 0 | 2006 | |
| 7,847,998 Polarizing, photochromic devices and methods of making the same | 0 | 2006 | |
| 7,505,189 Polarizing, photochromic devices and methods of making the same | 3 | 2006 | |
| 7,471,436 Polarizing, photochromic devices and methods of making the same | 0 | 2006 | |
| 7,457,025 Polarizing, photochromic devices and methods of making the same | 0 | 2006 | |
| 7,286,275 Polarizing, photochromic devices and methods of making the same | 1 | 2006 | |
| 7,517,982 Naphthols useful for preparing indeno-fused photochromic naphthopyrans | 0 | 2007 | |
| 7,557,208 Naphthols useful for preparing indeno-fused photochromic naphthopyrans | 0 | 2008 | |
| 8,211,338 Photochromic compounds | 0 | 2008 | |
| 8,003,005 Alignment facilities for optical dyes | 0 | 2008 | |
| 8,089,678 Clear to circular polarizing photochromic devices and methods of making the same | 1 | 2008 | |
| 8,110,127 Photochromic coating exhibiting improved performance | 0 | 2009 | |
| 8,077,373 Clear to circular polarizing photochromic devices | 0 | 2010 | |
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| 8,298,671 Photochromic polyurethane laminate | 0 | 2004 | |
| 8,002,935 Forming method for polymeric laminated wafers comprising different film materials | 2 | 2006 | |
| 8,128,224 Injection molding of lens | 1 | 2006 | |
| 7,858,001 Photochromic lens | 0 | 2006 | |
| 8,367,211 Photochromic lens | 0 | 2010 | |
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| 5,213,733 Method of making synthetic fibers containing photochromic pigment | 6 | 1991 | |
| 5,422,181 Synthetic fibers containing photochromic pigment and their preparation | 9 | 1994 | |
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| 4,819,239 Laser Q-switch | 21 | 1987 | |
| 4,913,934 Process for making laser Q-switch | 16 | 1988 | |
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| 8,110,281 Systems and methods for creating optical effects on media | 0 | 2005 | |
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| 4,981,614 Solid solution | 23 | 1988 | |
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| 5,959,761 Incorporating photochromic molecules in light transmissible articles | 11 | 1997 | |
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| 8,420,297 Developers and method of coloring lithographic printing members | 0 | 2010 | |
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| 5,730,911 Process for the manufacture of a substrate made of transparent organic glass and substrate thus obtained | 8 | 1996 | |
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| 4,746,199 Non-linear optic process using N-(4-nitrophenyl)-2-(hydroxymethyl)-pyrrolidine and deuterated derivatives thereof | 4 | 1986 | |
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| 7,897,296 Method for holographic storage | 0 | 2004 | |
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| 5,186,867 Spiro-indoline oxazine compounds with photochromatic and photosensitizing characteristics and the process for their preparation | 6 | 1992 | |
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| 7,829,162 Thermal transfer ribbon | 2 | 2007 | |
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| 4,556,605 Photochromic coating composition and photochromic synthetic resin ophthalmic lens | 90 | 1983 | |
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| 4,756,973 Photochromic lens | 65 | 1986 | |
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| 6,669,873 Optical resin composition comprising thiol-ene prepolymer | 4 | 2000 | |
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| 6,379,808 Photochromic film comprising a gas barrier deposition film | 0 | 1998 | |
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| 5,383,959 Reversible inks | 5 | 1993 | |
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| 8,440,044 Forming method for polymeric laminated wafers comprising different film materials | 0 | 2011 | |
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |