Silver halide emulsions with incorporated 4,6-difluorophenolic c

Details Silver halide emulsions with incorporated 4,6-difluorophenolic c Silver halide emulsions with incorporated 4,6-difluorophenolic c

1975-07-11

1976-12-21

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

Collecting electrode details

96 55, 260612R, G03C 140

Patent

active

039986420

ABSTRACT:
Color photographic elements are disclosed having, incorporated therein, one or more novel phenolic materials which have the following structure: ##STR1## wherein R.sub.1 is a non-interfering alkyl, aryl, amino, substituted alkyl or substituted aryl ballasting group of the type which is useful in photographic incorporated cyan color-forming couplers, and R.sub.2 is hydrogen or a lower alkyl group.

REFERENCES:
patent: 2367531 (1945-01-01), Salminen et al.
patent: 2423730 (1947-07-01), Salminen et al.
patent: 3516831 (1970-06-01), Wolf et al.
patent: 3647452 (1972-03-01), Hendess et al.
patent: 3758308 (1973-09-01), Beavers et al.
patent: 3790384 (1974-02-01), Oishi et al.
patent: 3926634 (1975-12-01), Sugizaki et al.

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