Desensitizing dyes for photographic emulsions

Details Desensitizing dyes for photographic emulsions Desensitizing dyes for photographic emulsions

1981-08-21

1983-09-13

Louie, Jr., Won H.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430593, 430594, G03C 136

Patent

active

044042779

ABSTRACT:
Novel cyanine dye salts having an alkoxyaryl function joined by a vinylene linkage to a heterocyclic nucleus are useful as desensitizers in fogged, direct positive type of silver halide emulsions.

REFERENCES:
patent: 2541472 (1951-02-01), Kendall et al.
patent: 3431111 (1969-04-01), Brooker et al.
patent: 3615607 (1971-10-01), Soma et al.
patent: 4025347 (1977-05-01), Beretta et al.

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