Radiation imagery chemistry: process – composition – or product th – Effecting frontal radiation modification during exposure,... – Involving motion during exposure – e.g. – dodging – etc.
Patent
1999-04-29
2000-03-07
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Effecting frontal radiation modification during exposure,...
Involving motion during exposure, e.g., dodging, etc.
430378, 430406, 430596, 430597, 430598, 430940, G03C 7407
Patent
active
060338334
ABSTRACT:
A new fogging photographic processing solution for a reversal process comprises a compound (I) and a bi-nucleophilic agent. Compound (I) corresponds to the following formula: ##STR1## wherein A is a group capable of being adsorbed to the silver halide surface, L is a linking group and r is 0 or 1, R.sub.1 and R.sub.2 are independently selected from an alkyl group, substituted or unsubstituted, and an aryl group substituted or unsubstituted. A process of producing a positive image by imagewise exposure of a reversal silver halide material comprises contacting the material with the above fogging solution or by imagewise exposure of such a material containing a compound (I) and contacting the material with a solution comprising a bi-nucleophilic agent.
REFERENCES:
patent: 3443942 (1969-05-01), Puschel et al.
patent: 5869224 (1999-02-01), Mitzinger
Southby David T.
Tsoi Siu C.
Twist Peter J.
Eastman Kodak Company
Le Hoa Van
Tucker J. Lanny
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