Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1981-01-05
1982-10-19
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430219, 430505, 430957, G03C 554, G03C 106
Patent
active
043551017
ABSTRACT:
Novel compounds which are represented by the formula ##STR1## wherein X represents the nonmetallic atoms necessary to form a nucleus which completes a 5- or 6-membered heterocyclic moiety, R is a group which is cleavable in aqueous alkaline medium and R.sub.1 is either a group which has a pKa of from about 7 to about 14 which is ionizable to an anion and wherein the silver salt of the mercaptan resulting from cleavage of -SR is rendered more soluble in the pH range within which R.sub.1 is ionized to an anion than it is below that pH range or a precursor of such a group. The compounds are useful in photographic applications.
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Research Disclosure, Jul. 1974, p. 12, Abstr. No. 12319.
Mehta Avinash C.
Nawn George H.
Taylor Lloyd D.
Downey Mary F.
Maccarone Gaetano D.
Polaroid Corporation
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