Method for precipitating separation of photosensitive silver...

Details Method for precipitating separation of photosensitive silver... Method for precipitating separation of photosensitive silver...

2006-11-10

2008-01-08

Visconti, Geraldina (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

C430S617000, C430S546000, C430S567000, C430S627000, C430S631000, C430S569000

Reexamination Certificate

active

07316895

ABSTRACT:
A method for separating photosensitive silver halide particles by precipitation from a dispersion comprising the silver halide particles and a protective colloid of a natural polymer, the method comprising the step of mixing the dispersion with an organic polymer having a logarithm value of n-octanol/water partition coefficient (being a log P value) of 0.8 to 2.0 so as to separate the silver halide particles from the dispersion.

REFERENCES:
patent: 7022470 (2006-04-01), Fukusaka et al.
patent: 2006/0099539 (2006-05-01), Ito et al.

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