Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1992-08-05
1995-01-10
Baxter, Janet C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430505, 430557, 430957, G03C 108, G03C 726, G03C 732
Patent
active
053806395
ABSTRACT:
A silver halide color photographic material containing a compound capable of the timed release of photographically useful groups is disclosed. The material contains at least one compound of the formula (I): ##STR1## wherein R.sub.1 is an alkyl group; R.sub.2 is an alkyl or aryl group; R.sub.3 is an oxycarbonyl, sulfonamido, carbamoyl, acylamino, ureido, oxycarbonylamino, sulfonyloxy, carbonyloxy or sulfamoyl group; R.sub.4 is a substituent; n is 0, 1, 2 or 3; and X is a group, preferably of the formula (II) or (III), which, when eliminated upon coupling with the oxidation product of a developing agent, forms an o-quinonemethide or p-quinonemethide to release a development inhibitor or a precursor thereof.
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Fujiwara Hiroko
Hirabayashi Shigeto
Ishige Osamu
Katoh Eisaku
Sugita Shuichi
Baxter Janet C.
Konica Corporation
Letscher Geraldine
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