Silver halide color photographic material

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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Details

430219, 430223, 430544, 430957, 430955, G03C 720, G03C 726, G03C 732, G03C 142

Patent

active

052100120

ABSTRACT:
A silver halide color photographic material is provided comprising on a support at least one silver halide emulsion layer containing at least one of the compounds represented by formulae (I) to (III): ##STR1## wherein R.sub.11 represents ##STR2## in which R.sub.13 represents an alkyl, aryl or heterocyclic group, and R.sub.14 and R.sub.15 each represents hydrogen, alkyl group or aryl group; R.sub.12 represents a substituent having a Hammett's substituent constant .sigma.p of 0.3 or less; n represents an integer 0 to 2, and when n is 2, the two R.sub.12 's may be the same or different; B represents a group which releases PUG after being separated from a hydroquinone nucleus; PUG represents a development inhibitor; l represents an integer; and A and A' each represents hydrogen or a group capable of being removed by an alkali; R.sub.11 and R.sub.12, R.sub.11 and A or A', R.sub.12 and A or A', and two R.sub.12 's may together form a ring; ##STR3## wherein Q.sup.1 represents an atomic group containing at least one hetero atom and is required for the formation of a heterocyclic group containing 5 or more members together with carbon atoms connected thereto; R.sup.21 represents a group capable of substituting on the hydroquinone nucleus; and B, PUG, l, A and A' are as defined above; ##STR4## wherein R.sub.31 represents an alkyl group containing two or more carbon atoms in which the carbon atom adjacent to the carbonyl group is not substituted by a hetero atom, a cycloalkyl group, an aryl group or a heterocyclic group; R.sub.32 and R.sub.33 each represents hydrogen or a substituent having a Hammett's substituent constant .sigma.p of 0.3 or less; and B, PUG, l, A and A' are as defined above.

REFERENCES:
patent: 4310621 (1982-01-01), Odenwalder et al.
patent: 4345024 (1982-08-01), Hirano et al.
patent: 4636456 (1987-01-01), Takahashi et al.
patent: 4740453 (1988-04-01), Nakamura et al.
patent: 4770982 (1988-09-01), Tchijima et al.
patent: 4791049 (1988-12-01), Kojima et al.

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