Gas separation: apparatus – Electric field separation apparatus – With means for vapor or liquid contact
Patent
1974-05-10
1976-05-18
Brown, J. Travis
Gas separation: apparatus
Electric field separation apparatus
With means for vapor or liquid contact
96 664, G03C 700
Patent
active
039575160
ABSTRACT:
The present invention relates to an oil-in-water emulsion which is suitable for processing photographic material. There is present or produced during the processing a substance which exerts its action on the photographic material from the aqueous phase. Contingent on the consumption the active substance is replenished or regenerated from the oily phase. The active substance is more readily soluble in the oily phase than in the aqueous one. The active substance may be, e.g., a dye bleach catalyst for silver dye bleach material or an alkylmercaptan, the latter acting as an antioxidant.
REFERENCES:
patent: 3278303 (1966-10-01), Meyer et al.
patent: 3455690 (1969-07-01), Schaefer et al.
patent: 3457074 (1969-07-01), Wilson et al.
patent: 3615494 (1971-10-01), Watanabe et al.
patent: 3782948 (1974-01-01), Froehlich et al.
Chylewski Christoph
Meier Max
Schellenberg Matthias
Almaula Prabodh
Brown J. Travis
Ciba-Geigy AG
Kolodny Joseph G.
McC. Roberts Edward
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