Color photographic materials containing agents for preventing dy

Details Color photographic materials containing agents for preventing dy Color photographic materials containing agents for preventing dy

1977-07-28

1979-05-22

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

With nonelectrical gas treating or conditioning means

96 56, 96 77, 96100R, G03C 176

Patent

active

041557654

ABSTRACT:
This invention involves a color photographic material which contains a support and a hydrophilic layer containing a dye image wherein the material contains a compound represented by the following formula: ##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 coumaran ring.

REFERENCES:
patent: 3574627 (1971-04-01), Stern et al.
patent: 3930866 (1976-01-01), Oishi et al.
patent: 4015990 (1977-04-01), Ishida et al.

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