Recording material for color photography

Details Recording material for color photography Recording material for color photography

1984-12-10

1986-02-04

Kight, John

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548277, 548264, 548308, 548268, 548262, 546256, 562455, 564 80, 564153, G03C 700, G03C 140

Patent

active

045687528

ABSTRACT:
Recording material for color photography, which contains, in at least one silver halide emulsion layer, at least one yellow coupler of the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are alkyl, cycloalkyl or aryl, X.sub.1, X.sub.2, X.sub.3 and X.sub.4 are radicals detachable during the coupling reaction and Y.sub.1 and Y.sub.2 are halogen, alkyl, alkoxy, alkylmercapto, --CN, --COOH, carbalkoxy, --NH.sub.2, --NHR.sub.5, --NR.sub.5 R.sub.6 or --NHCOR.sub.5, in which R.sub.5 and R.sub.6 are alkyl or phenyl, Z is a divalent bridge member and r is 1 or 2.
Photographic colored images with excellent spectral absorption characteristics and good resistance to light, heat and moisture are obtained by exposing the recording material image-wise and developing.

REFERENCES:
patent: 1580709 (1926-04-01), Zitscher et al.
patent: 4115121 (1978-09-01), Evans et al.
patent: 4248961 (1981-02-01), Hagen et al.

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