Hydrophilic coupler solutions

Details Hydrophilic coupler solutions Hydrophilic coupler solutions

1974-10-29

1976-11-02

Whitby, Edward G.

Gas separation: apparatus

Electric field separation apparatus

Collecting electrode details

961144, 106125, G03C 131

Patent

active

039895297

ABSTRACT:
Hydrophilic coupler solutions are improved by the addition of a diepoxide, pyruvaldehyde, ethyleneglycoldiglycidyl ether or 2,3-butanedione. These solutions exhibit greater stability and a reduced rate of viscosity increase when admixed into gelatin silver halide emulsions.

REFERENCES:
patent: 3050394 (1962-08-01), Ben-Ezra
patent: 3288775 (1966-11-01), Anderau et al.
patent: 3413123 (1968-11-01), Nittel et al.
patent: 3632373 (1972-01-01), O'Connell
patent: 3676144 (1972-07-01), Schulz
patent: 3749573 (1973-07-01), Froehlich

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