Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1984-11-23
1986-04-01
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430223, 430242, 430562, G03C 140, G03C 554
Patent
active
045798052
ABSTRACT:
Dyes corresponding to formula I may be released imagewise from dye releasers in the dye diffusion transfer process. The dyes obtained are lightfast cyan dyes with improved spectral properties and reduced sensitivity to reducing agents ##STR1## the meanings of symbols given in formula I (A, A', G, R.sup.1, R.sup.2, R.sup.3 and R.sup.4) are indicated in the description.
REFERENCES:
patent: 3999991 (1976-12-01), Fujita et al.
patent: 4346161 (1982-08-01), Krutak et al.
patent: 4524124 (1985-06-01), Bergthaller et al.
Bergthaller Peter
Furstenwerth Hauke
Heidenreich Holger
Marx Paul
Stolzenburg Rudolf
Agfa-Gevaert Aktiengesellschaft
Schilling Richard L.
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