Radiation imagery chemistry: process – composition – or product th – Microcapsule – process – composition – or product
Patent
1997-04-17
1999-08-31
Chu, John S.
Radiation imagery chemistry: process, composition, or product th
Microcapsule, process, composition, or product
430157, 430170, 430171, 430177, G03C 161, G03C 172
Patent
active
059452471
ABSTRACT:
A heat development type duplicating material having a recording layer which is formed on a support. The recording layer comprises a photosensitive diazo compound and a coupler that reacts with the diazo compound to develop color. Furthermore, the duplicating material contains an ascorbic acid derivative. The heat development type duplicating material generates little stain in background areas, exhibits satisfactory storage stability, and provides a high image density.
REFERENCES:
patent: 3620740 (1971-11-01), Poot
patent: 4511642 (1985-04-01), Higashi et al.
patent: 5679494 (1997-10-01), Minami et al.
Chu John S.
Fuji Photo Film Co. , Ltd.
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