Color photographic material with improved color reproduction

Details Color photographic material with improved color reproduction Color photographic material with improved color reproduction

1977-05-02

1979-05-29

Brown, J. Travis

Gas separation: apparatus

Apparatus for selective diffusion of gases

Plural separate barriers

96 22, 96 73, 96 74, 96 77, 96 99, 96100R, G03C 704, G03C 176

Patent

active

041566084

ABSTRACT:
Suitable masking compounds for masking the undesired color side densities of image dyes produced from color couplers are those of the following formula ##STR1## in which R.sup.1 represents hydrogen or one or more substituents such as halogen, alkyl, aryl, a heterocyclic group alkoxy, hydroxyl, amino, acylamino, sulfo, sulfonyl, carboxyl or carbamyl or condensed carbocyclic or heterocyclic ring.

REFERENCES:
patent: B351673 (1975-01-01), Fleckenstein et al.
patent: 4028103 (1977-06-01), Hannie
patent: 4029503 (1977-06-01), Fujiwhara et al.
patent: 4047952 (1977-09-01), Pfaff
Research Disclosure No. 15654, pp. 32-39, Apr. 1977.

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