Photographic silver halide emulsion with hetero-N containing pol

Details Photographic silver halide emulsion with hetero-N containing pol Photographic silver halide emulsion with hetero-N containing pol

1976-02-20

1979-05-01

Welsh, John D.

Gas separation: apparatus

Solid sorbent apparatus

With control means responsive to sensed condition

96 88, G03C 172

Patent

active

041521617

ABSTRACT:
A copolymer containing 0.1 to 20 mol-% of recurring structural units of the formula ##STR1## is a valuable peptising agent for the precipitation of silver halide. Sensitivity, onset of development and silver coating power are advantageously influenced.

REFERENCES:
patent: 3813251 (1974-05-01), Hollistu et al.
patent: 3926869 (1975-12-01), Horie et al.
patent: 3957492 (1976-05-01), Miyazako et al.

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