Nucleation of tabular grain emulsions at high pBr

Details Nucleation of tabular grain emulsions at high pBr Nucleation of tabular grain emulsions at high pBr

1988-06-30

1990-04-03

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, G03C 102

Patent

active

049140140

ABSTRACT:
The present invention is directed to a process of precipitating for use in photography a thin tabular grain silver bromide or bromoiodide emulsion within a novel range of low bromide ion concentrations (high pBr levels) at the nucleation stage. A variety of advantages can be realized, including thinner and/or larger diameter tabular grains and novel tabular grain forms.

REFERENCES:
patent: 4301241 (1981-11-01), Saito
patent: 4414310 (1983-11-01), Daubendiek et al.
patent: 4434226 (1984-02-01), Wilgus et al.
patent: 4439520 (1984-03-01), Kofron et al.
patent: 4713320 (1987-12-01), Maskasky et al.
patent: 4797354 (1989-01-01), Saitou et al.

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