Silver halide emulsion containing two-equivalent yellow dye-form

Details Silver halide emulsion containing two-equivalent yellow dye-form Silver halide emulsion containing two-equivalent yellow dye-form

1976-09-14

1978-01-31

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

And serially arranged nonelectrical separator

96100N, G03C 700, G03C 140

Patent

active

040713652

ABSTRACT:
A compound represented by the general formula A-Q (wherein A represents a yellow dye image-forming coupler residue having the active methylene group from which one hydrogen atom has been replaced and Q represents a tetrazolyl group substituted at the 5-position with hydrogen, a halogen, a cyano, an alkyl, an aralkyl, an aryl, an alkyl-amino or an arylamino group) is used as a yellow dye image-forming coupler for obtaining yellow dye images that have good spectral absorption characteristics, and good stability to prolonged exposure to light, heat and high humidity.

REFERENCES:
patent: 3632373 (1972-01-01), O'Connell et al.
patent: 3703375 (1972-11-01), Groet et al.
patent: 3961963 (1976-06-01), Shiba et al.

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