Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Patent
1994-12-27
1997-06-24
Grumbling, Matthew V.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
252586, 359885, 544 586, C07D41314, C07D41304
Patent
active
056418841
ABSTRACT:
A spiro-naphtho-oxaine compound having a specific substituent providing red color development which has been unknown in the past, and photosensitive materials containing the compound. Since the compound is superior in fatigue resistance and has a sufficient red color developing density, it is used in plastic articles, optical filters, recording materials, textiles, decoration materials, and toys, which change in color by light irradiation to develop a magenta color.
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Sato Shin'ichi
Suzuki Nobuo
Utsunomiya Akira
Yamaga Hiroyoshi
Grumbling Matthew V.
Hodogaya Chemical Co. Ltd.
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