2-Equivalent acylacetamide yellow forming couplers with 2,6-diox

Details 2-Equivalent acylacetamide yellow forming couplers with 2,6-diox 2-Equivalent acylacetamide yellow forming couplers with 2,6-diox

1975-11-25

1977-06-28

Klein, David

Gas separation: apparatus

Electric field separation apparatus

And serially arranged nonelectrical separator

96100, G03C 700, G03C 140

Patent

active

040323471

ABSTRACT:
A photographic material is described comprising novel 2-equivalent yellow forming color couplers the active methylene group of which carries a 2,6-dioxo-7-purinyl group in its oxo- or enol form.

REFERENCES:
patent: 3933500 (1976-01-01), Shiba et al.
patent: 3960570 (1976-06-01), Oishi et al.

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