Spirooxazine compounds
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United States of America Patent
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-
Jul 4, 1995
Issued Date -
N/A
app pub date -
Mar 28, 1994
filing date -
Jun 10, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a novel spirooxazine compound having excellent durability which changes into a colored form upon irradiation with the light containing ultraviolet rays such as of sunrays or the light from a mercury lamp, the change being reversible.
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