Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1987-11-18
1989-06-13
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430551, 430558, G03C 738, G03C 146
Patent
active
048392642
ABSTRACT:
A silver halide photographic material containing at least one of couplers represented by the general formula [I] and at least one of the compounds represented by the general formula [XII] is disclosed. ##STR1## wherein Z is a group of nonmetal atoms necessary to complete a nitrogen-containing heterocyclic ring where the ring formed by Z may be substituted; X is a hydrogen atom or a substituent capable of being released upon reaction with the oxidation product of a color developing agent and R is a hydrogen atom or substituent; ##STR2## wherein R.sub.21 is a hydrogen atom or a group selected from the group consisting of an alkyl group, an alkenyl group, a cycloalkyl group and aryl group, R.sub.22 and R.sub.23 are independently selected from the group consisting of an alkyl group, an alkenyl group, a cycloalkyl group and an aryl group.
The photographic material provides a dye-image highly stable against heat and light, and a formation of stain at a non-image area is prevented.
REFERENCES:
patent: 4559297 (1985-12-01), Seto et al.
patent: 4562146 (1985-12-01), Masuda et al.
patent: 4585728 (1986-04-01), Furutachi et al.
patent: 4639415 (1987-01-01), Kaneko et al.
Kadokura Kenji
Kaneko Yutaka
Kida Shuji
Masuda Kosaku
Yoshimoto Shinji
Bierman Jordan B.
Buscher Mark R.
Konishiroku Photo Industry Co,., Ltd.
Michl Paul R.
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