Emulsification and dispersion method of hydrophobic, photographi

Details Emulsification and dispersion method of hydrophobic, photographi Emulsification and dispersion method of hydrophobic, photographi

1996-02-22

1998-10-06

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Fixer

430449, 430461, 430546, 430564, 430566, 430631, 430628, 106135, 252312, 252364, G03C 538, G03C 7388, G03C 1122, G03C 138

Patent

active

058174508

ABSTRACT:
An emulsification and dispersion method of a hydrophobic, photographically useful compound comprising dispersing a water-insoluble phase containing the hydrophobic, photographically useful compound in water or in a hydrophilic colloid composition, wherein the water-insoluble phase at a temperature at which the prepared dispersion is stored may have a viscosity of from 100 poise or more to less than 1,000,000 poise at the shear rate of 10 sec.sup.-1. According to the present invention, a silver halide photographic material comprising a fine dispersion of a hydrophobic, photographically useful compound and having an excellent production suitability can be obtained.

REFERENCES:
patent: 2870012 (1959-01-01), Godowsky et al.
patent: 4211836 (1980-07-01), Yoneyama et al.
patent: 4378425 (1983-03-01), Schnoring et al.
patent: 5200303 (1993-04-01), Takahashi et al.
patent: 5426019 (1995-06-01), Chari
Research Disclosure No. 16468, Dec. 1977, Webb, "Process for preparing . . . materials".

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