Pyrano-quinolines, pyrano-quinolinones, combinations thereof, photochromic compositions and articles
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United States of America Patent
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Aug 22, 2006
Grant Date -
Jun 16, 2005
app pub date -
Dec 10, 2003
filing date -
Dec 10, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Described are compositions of at least one material represented by a pyrano[3,2-c]quinoline structure, a pyrano[3,2-c]quinolinone structure or mixtures thereof. The pyrano[3,2-c]quinoline structure is characterized by having a nitrogen atom at the 6-position ring atom and an oxy-substituent at the 5-position ring atom. The pyrano[3,2-c]quinolinone structure is characterized by having a substituted nitrogen atom at the 6-position ring atom and an oxo-substituent at the 5-position ring atom, the nitrogen atom substituents being hydrogen, aliphatic substituents, cycloaliphatic substituents, aromatic substituents, heteroaromatic substituents or a combination thereof. Both of the pyrano[3,2-c]quinoline and pyrano[3,2-c]quinolinone structures are characterized by having two substituents at the 2-position ring atom. Also described are photochromic articles that contain or that have coatings or films containing at least one of the novel compositions or combinations thereof with other photochromic materials.
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