Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1996-06-24
1997-12-02
Baxter, Janet C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430556, G03C 732
Patent
active
056934580
ABSTRACT:
The invention provides a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a dye-forming coupler of formula (I): ##STR1## wherein X is H or a coupling-off group, R.sub.1 is H or a substituent group; Y and Z are the same or different and are H or are independently selected from alkyl, aryl and heteroaryl groups; provided that Y and Z taken together with the nitrogen atom may form a 5-10 membered heterocyclic ring.
REFERENCES:
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Synthesis, 1993, Stuttgart, DE, pp. 783-785, R. Bossio et al. "Studies on Isocyanides and Related Compounds".
Journal of General Chemistry USSR, vol. 30, No. 10, Oct. 1960, NY US N.S. Vulf'son and V.E. Kolchin.
Journal of Medicinal Chemistry, vol. 36, 1993, Washington US, pp. 3386-3396, M. Rowley et al.
Clark Bernard Arthur
Gourley Robert Nicholas
McNab Hamish
Sommerville Craig Cameron
Baxter Janet C.
Eastman Kodak Company
Kluegel Arthur E.
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