Process for the stabilization and antifogging of photographic si

Details Process for the stabilization and antifogging of photographic si Process for the stabilization and antifogging of photographic si

1976-12-21

1978-12-26

Louie, Jr., Won H.

Gas separation: apparatus

Chromatography type apparatus

Having imbedded baffle or flow distributor

96108, 96109, G03C 128, G03C 134

Patent

active

041314700

ABSTRACT:
A process for the stabilization of and the prevention or substantial reduction of fogging in the use of photographic silver halide emulsions, characterized in that compounds selected from the group consisting of those represented by the general formulas I, II, and III: ##STR1## are added to the emulsion, before or during chemical sensitization and before coating of the emulsions onto a support therefor, wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as herein described.

REFERENCES:
patent: 3311474 (1967-03-01), Willems et al.
patent: 3365294 (1968-01-01), VON Konig
patent: 3824103 (1974-07-01), Pierce et al.
Chem. Abs., vol. 86, 1977, 49316x.

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