Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1992-09-25
1993-10-12
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430567, 430564, 430605, G03C 1005, G03C 1494
Patent
active
052524493
ABSTRACT:
A photographic silver halide emulsion comprising silver halide grains having a chloride content of at least 90 mole percent and a rhodium salt, wherein said grains have been sensitized with a black and white developing agent, provides a substantial improvement in bright room tolerance as compared to emulsions sensitized with more conventional sensitizing agents, without loss of speed or contrast. A process for improving the bright room tolerance of a photographic emulsion comprising silver halide grains having a chloride content of at least 90 mole percent and a rhodium salt comprises the step of sensitizing the grains with a black and white developing agent.
REFERENCES:
patent: 3192046 (1965-06-01), Kennard et al.
patent: 3212899 (1965-10-01), Kennard et al.
patent: 4010036 (1977-03-01), Suga et al.
patent: 4346167 (1982-08-01), Imatomi et al.
patent: 4452882 (1992-06-01), Akimura et al.
patent: 4617258 (1986-10-01), Menjo et al.
patent: 5070008 (1991-12-01), Maekawa et al.
Bowers Jr. Charles L.
E. I. Du Pont de Nemours and Company
Letscher Geraldine
LandOfFree
Photographic silver halide emulsions with improved bright room t does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photographic silver halide emulsions with improved bright room t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic silver halide emulsions with improved bright room t will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1903737