Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1981-09-14
1982-12-14
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430554, 430555, G03C 140
Patent
active
043638732
ABSTRACT:
As silver is the most expensive individual component in photographic film, it is desirable to reduce the quantities of silver in such materials. The addition of a certain class of phenolic derivatives has been found to enhance the contrast generated by dyes in color photographic emulsions. Emulsions containing these phenolic compounds can use less silver and produce the same optical density as emulsions with higher silver concentrations.
REFERENCES:
patent: 2955038 (1960-10-01), Smith
patent: 3043697 (1962-07-01), Forsgard
patent: 3930866 (1976-01-01), Oishi et al.
patent: 4207393 (1980-06-01), Snyder
Boon John R.
Wagner Gregory J.
Alexander Cruzan
Brown J. Travis
Litman Mark A.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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