Silver halide color photographic material

Details Silver halide color photographic material Silver halide color photographic material

1985-10-02

1988-05-03

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430553, 430555, 430557, 430558, 430955, 430957, 430551, G03C 140, G03C 736, G03C 734

Patent

active

047419946

ABSTRACT:
A silver halide color photographic material having improved granularity and sharpness is disclosed which comprises at least one coupler represented by formula (Ia), (Ib), or (Ic). ##STR1## wherein A represents a coupler residue which can split away from the coupler by A--X bond cleavage upon reaction with an oxidation product of a developing agent; X represents an oxygen atom, or a sulfur atom; R.sub.1 and R.sub.2 each represents an aliphatic group, an aromatic group, or a heterocyclic group; Y represents a substituent group; and n represents 0, 1, or 2, and when n is 2, the two Y's represent the same or different substituent groups, or two of substituents R.sub.1, R.sub.2 and Y represent divalent groups that combine with each other to form a ring structure.

REFERENCES:
patent: 4248962 (1981-02-01), Lau
patent: 4413054 (1983-11-01), Mitsui et al.
patent: 4447523 (1984-05-01), Ross et al.
patent: 4555479 (1985-11-01), Sakai et al.
patent: 4556630 (1985-12-01), Furutachi et al.
patent: 4584264 (1986-04-01), Ohki et al.
patent: 4618571 (1986-10-01), Ichijima et al.
patent: 4678743 (1987-07-01), Yamada et al.

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