Azopyrazolone masking couplers

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...

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Details

430562, 430434, 430359, G03C 718

Patent

active

054927994

ABSTRACT:
The invention provides a photographic element comprising a support bearing a light-sensitive photographic silver halide layer having associated therewith a masking coupler comprising:

REFERENCES:
patent: 4227559 (1981-07-01), Jaeken

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