Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1996-11-20
1998-04-07
Huff, Mark F.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430567, G03C 1035, G03C 1015
Patent
active
057363129
ABSTRACT:
A process of preparing a photographic emulsion having radiation-sensitive silver iodohalide grains. Iodide is introduced into the grains by releasing iodide ions from iodate (IO.sub.3.sup.-). Release of iodide ions from the IO.sub.3.sup.- is employed to enhance the uniformity of iodide availability during emulsion preparation, either during grain precipitation or subsequent halide conversion. The process of the invention is in one preferred form directed to the partial halide conversion of tabular grains. A speed-granularity advantage is demonstrated.
REFERENCES:
patent: 5389508 (1995-02-01), Takada et al.
patent: 5476760 (1995-12-01), Fenton et al.
Chen Samuel
Fenton David E.
Jagannathan Seshadri
Judd Harold G.
Reed Kenneth J.
Eastman Kodak Company
Huff Mark F.
Thomas Carl O.
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