Gas separation: apparatus – Electric field separation apparatus – Electrode retaining or supporting means
Patent
1974-11-13
1977-05-03
Kelley, Mary F.
Gas separation: apparatus
Electric field separation apparatus
Electrode retaining or supporting means
96 84R, 96 87A, 96 95, 96107, 96109, 96111, 961142, 961144, 961145, 96126, E03C 102, E03C 128
Patent
active
040212475
ABSTRACT:
A method for dispersing organic compounds which are substantially insoluble in water and are used in photographic materials, such as chemical sensitizers (except spectral sensitizing dyes), antifoggants, antioxidants, ultraviolet absorbents, color couplers, coating aids, hardening agents, etc., effectively in a silver halide photosensitive emulsion comprising dissolving the organic compounds in an acid having a pKa of not over about 5, such as methanesulfonic acid, ethanesulfonic acid, etc., and adding the solution to the silver halide photosensitive emulsion directly or after dispersing in an aqueous solution.
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Hinata Masanao
Mihara Yuji
Fuji Photo Film Co. , Ltd.
Kelley Mary F.
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