Infrared sensitizing dye for photographic element

Details Infrared sensitizing dye for photographic element Infrared sensitizing dye for photographic element

1989-09-26

1990-12-04

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430944, G03C 102

Patent

active

049753622

ABSTRACT:
A photographic element is described comprising a support having thereon a silver halide emulsion layer comprising silver halide sensitized with a dye of the formula: ##STR1## wherein L.sub.1, L.sub.2, L.sub.3, L.sub.4, L.sub.5, L.sub.6, L.sub.7, L.sub.8, and L.sub.9 each independently represents a substituted or unsubstituted methine group,

REFERENCES:
patent: 2096842 (1937-10-01), Brunken et al.
patent: 2131853 (1938-10-01), Dieterle et al.
patent: 4576905 (1986-03-01), Gunther et al.
patent: 4619892 (1986-10-01), Simpson et al.
patent: 4801525 (1989-01-01), Mihara et al.
Research Disclosure No. 17363, vol. 173, Sept. 1978, Kenneth Mason, Publications, Hampshire, England.

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