Preparation of photographic material

Details Preparation of photographic material Preparation of photographic material

1978-02-09

1979-03-27

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

With details of voltage supply means or circuitry

96 84R, 96100R, 96107, 96109, 96111, 961145, 96120, 96130, 427414, 106135, 106309, 252314, 252318, G03C 184, G03C 140

Patent

active

041463994

ABSTRACT:
Photographic additives in particular water-insoluble photographic additives are rendered easier to incorporate into photographic layers by finely dividing them, mixing them with a finely divided water soluble substance and compressing the resulting mixture into the form of a tablet. The tablets which contain from about 1 to 50% by weight of the photographic additives are then dissolved in the coating composition and this disperses the water insoluble additive uniformly throughout the coating composition.

REFERENCES:
patent: 3158482 (1964-11-01), Lucas
patent: 3287134 (1966-11-01), Kainrath et al.
patent: 3660101 (1972-05-01), Owens et al.
patent: 3676147 (1972-07-01), Boyer et al.
patent: 4006025 (1977-02-01), Swank et al.

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