Color photographic materials containing dye-fading inhibitors

Details Color photographic materials containing dye-fading inhibitors Color photographic materials containing dye-fading inhibitors

1977-10-18

1979-12-11

Brown, Travis

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Two or more radiation-sensitive layers containing other than...

430551, G03C 176, G03C 106, G03C 140

Patent

active

041781848

ABSTRACT:
The present invention is directed to a color photographic material which is characterized as containing a compound represented by the following formula I in combination with a compound represented by the following formula II ##STR1## wherein R represents an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group or a heterocyclic ring; R.sub.1, R.sub.2 and R.sub.3 individually represent hydrogen, halogen, an alkyl group, an alkylthio group, an alkoxy group, an aryl group, an aryloxy group, an arylthio group, an acyl group, an acylamino group, a diacylamino group, an acyloxy group, a sulfonamido group, an alkylamino group, a cycloalkyl group or an alkoxycarbonyl group; and Z represents an atomic group or groups necessary for forming a chroman or coumaran ring; provided that R and R.sub.1 can cooperatively be cyclized to form a chroman or cumaran ring. ##STR2## wherein A.sub.1, A.sub.2, A.sub.3 and A.sub.4 are individually alkyl having 1-18 carbon atoms, the total number of carbon atoms of A.sub.1, A.sub.2, A.sub.3 and A.sub.4 being not more than 32; and X is a simple bond, oxygen, sulfur, sulfonyl or ##STR3## in which A.sub.5 is hydrogen or alkyl having 1-10 carbon atoms and n is an integer of 1-3.

REFERENCES:
patent: 2735765 (1956-02-01), Loria et al.
patent: 3432300 (1969-03-01), Lestina et al.
patent: 3700455 (1972-10-01), Ishikawa et al.
patent: 3764337 (1973-10-01), Arai et al.
patent: 3930866 (1976-01-01), Oishi et al.
patent: 4015990 (1977-04-01), Ishida et al.

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