US Patent 7294290 Photochromic composition in a solid matrix
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Patent abstract
The invention relates to novel photochromic composition for controlling the transmission of light comprising an organic polymer, photochromic dye, photosensitizer and an electron acceptor. The invention also includes a method for preparing photochromic films.
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US Patent 07294290 Photochromic composition in a solid matrix US Patent 7294290 Photochromic composition in a solid matrix
Infobox
Patent Number
0729429000
Patent Number
729429000
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Is a
Patent Jurisdiction
Patent Number
072942900
Date of Patent
November 13, 2007
0Patent Application Number
108708330
Date Filed
June 17, 2004
0Official Website
Patent Primary Examiner
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Infobox
Is a
Patent Jurisdiction
Patent Number
072942900
Date of Patent
November 13, 2007
0Patent Application Number
108708330
Date Filed
June 17, 2004
0Official Website
Patent Primary Examiner
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US Patent 07294290 Photochromic composition in a solid matrix
Infobox
Is a
Patent jurisdiction
Patent number
07294290
Date of patent
November 13, 2007
Patent application number
10870833
Date Filed
June 17, 2004
Patent primary examiner
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