Zeromethine merocyanine dyes as J-aggregating spectral sensitize

Details Zeromethine merocyanine dyes as J-aggregating spectral sensitize Zeromethine merocyanine dyes as J-aggregating spectral sensitize

1990-12-05

1992-04-28

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430591, 430961, G03C 110

Patent

active

051088878

ABSTRACT:
A special group of zeromethine dyess which are desensitizers for sherical grain emulsions but which J-aggregate on tabular grains is described. Tabular emulsions containing these dyes are particularly useful as X-ray elements since the maximum emission peak of the dyes present therein closely matches the ouput of intensifying screens used therewith.

REFERENCES:
patent: 3734739 (1973-05-01), Borror
patent: 4028353 (1977-06-01), Borror
patent: 4425426 (1984-01-01), Abbott et al.
patent: 4729946 (1988-03-01), Kasama et al.

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