Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Patent
1993-12-02
1995-08-29
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
252586, C07D26514
Patent
active
054461510
ABSTRACT:
A photo reactive material, such as a photochromic material, which has the following structure: ##STR1## where the variables, A, R, R', R", R*, R.sup.+, m, and n are defined in claim 1.
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Gabbutt Christopher D.
Hepworth John D.
Marsden Sean D.
Rickwood Martin
Grumbling Matthew V.
Pilkington plc
Shah Mukund J.
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