Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1993-04-30
1994-12-06
Wright, Lee C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430627, 430631, 430634, 430635, G03C 7388, G03C 7396
Patent
active
053709837
ABSTRACT:
A silver halide photographic material containing an oil-in-water type dispersion of a hydrophobic photographically useful substance is disclosed, in which the dispersion is prepared by emulsifying and dispersing a solution (A) of at least one water-insoluble and organic solvent-soluble polymer in a substantially water-immiscible organic solvent and a solution (B) of at least one hydrophobic photographically useful substance in a substantially water-immiscible organic solvent in an aqueous medium (C) either simultaneously or separately. The dispersion has improved stability with time, and the photographically useful substance in the dispersed particles exhibits improved stability to light or heat in the photographic material.
REFERENCES:
patent: 4419441 (1983-12-01), Nittel et al.
patent: 5006453 (1991-04-01), Takahashi et al.
patent: 5019490 (1991-05-01), Kobayashi et al.
patent: 5026631 (1991-06-01), Yoneyama
patent: 5071738 (1991-12-01), Mizukura et al.
patent: 5077188 (1991-12-01), Tanji et al.
Shono Akiko
Takahashi Osamu
Fuji Photo Film Co. , Ltd.
Wright Lee C.
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