Photographic speed increasing and latent image stabilizing compo

Details Photographic speed increasing and latent image stabilizing compo Photographic speed increasing and latent image stabilizing compo

1983-02-14

1984-05-29

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Two or more radiation-sensitive layers containing other than...

430551, 430600, 430614, G03C 146, G03C 106

Patent

active

044515570

ABSTRACT:
Photographic silver halide emulsions show increased speed and reduced latent image fading when a compound of the following structure is incorporated: ##STR1## wherein: X is --O--, --S--, --Se--, or ##STR2## Y.sup.1 and Y.sup.2 individually represent hydrogen or an aromatic nucleus or together represent the atoms completing a fused aromatic nucleus;

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patent: 4256830 (1981-03-01), Jager et al.
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patent: 4374196 (1983-02-01), Herz
patent: 4378426 (1983-03-01), Lok et al.
Herz U.S. Ser. No. 236,360, filed Feb. 20, 1981.
Kuwabara and Iwai, "Effects of Acetyleneic Derivatives on Photographic Emulsions," Bulletin of the Soc. of Scientific Phot. of Japan, No. 16, Dec. 1966, pp. 14-23.

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