Loading patent…
AssigneeAgfa-Gevaert
InventorsHildegard Schnoring, Karl-Wilhelm Schranz, Gunther Koepke
Estimating the term…
The invention relates to a process for the production of photographic emulsates consisting of dispersions of water-immiscible or water-insoluble particles in aqueous binder solution, characterized in that the entire non-aqueous phase is initially introduced at a temperature above the liquefaction temperatures of the aqueous and non-aqueous phases, after which a relatively small volume of aqueous phase is emulsified continuously or in portions into the non-aqueous phase by known methods and then more aqueous phase is introduced while emulsification is continued in such a quantity that the viscosity of the emulsion passes through a maximum (indicating phase reversal into an emulsion of non-aqueous particles in aqueous dispersion medium (FIG. 1)).
In the process for the production of a dispersion of at least one liquid organic phase containing a hydrophobic,
A photographic material consisting of a layer support, at least one silver halide emulsion layer and, optionally, further layers, characterised in that at least one of the layers contains in finely dispersed form a dispersion of organic, hydrophobic photographically-active substances in an aqueous medium produced by first providing a liquid organic phase containing a hydrophobic photographically-active compound and combining an aqueous phase with the organic phase by dispersing and in which the aqueous phase is dispersed in the organic phase
Dependencies are inferred from the claim text.