Incorporation process

Details Incorporation process Incorporation process

1975-03-03

1977-01-18

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

Electrode retaining or supporting means

96 22, 96 56, 96 84R, 96 95, 96100, 96120, G03C 184, G03C 140

Patent

active

040037487

ABSTRACT:
A photographic silver halide material with at least one halide emulsion layer and at least one substance in heterogeneous contribution emulsified in oilformer compounds and a process of preparing the said photographic silver halide materials. The substances are introduced into photographic emulsions prior to coating by way of adding a hydrophilic phase containing in emulsified form the substances which are emulsified in the hydrophilic phase in form of a solution containing at least one substantially diffusion-resistant, substantially water-insoluble, substantially non-coupling dispersible .beta.-diketo compound with at least 9 carbon atoms, .beta.-keto carboxylic acid ester, .beta.-keto carboxylic acid amide, cyanoacetyl compound or .beta.-dicarboxylic acid ester with at least 13 carbon atoms as oilformer. The photographic material shows advantageous results i.a. with respect of stability of the emulsified substances in the layers and excellent sensitometric results.

REFERENCES:
patent: 2353262 (1944-07-01), Peterson et al.
patent: 3689271 (1972-09-01), Nittel et al.
patent: 3764336 (1973-10-01), Nittel et al.
patent: 3779765 (1973-12-01), McCrossen et al.
patent: 3860425 (1975-01-01), Ono et al.

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