Photographic element containing yellow filter dyes having tricya

Details Photographic element containing yellow filter dyes having tricya Photographic element containing yellow filter dyes having tricya

1987-11-19

1989-08-29

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Antihalation or filter layer containing

430343, 430522, G03C 184

Patent

active

048617008

ABSTRACT:
Photographic elements comprising filter dyes of the formula: ##STR1## wherein A is a pyrrole or indole nucleus, with the tricyanovinyl radical occupying the 2 or 3 position of the nucleus.

REFERENCES:
patent: 2725378 (1955-11-01), Rees
patent: 2928831 (1960-03-01), Surrey
patent: 3040056 (1962-06-01), Williams
patent: 3040083 (1962-06-01), Wiley
patent: 3100133 (1963-08-01), Risiner et al.
patent: 3721552 (1973-03-01), Tellier et al.
patent: 4420555 (1983-12-01), Krueger et al.

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