Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1994-09-06
1995-08-15
Baxter, Janet C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430584, 430944, G03C 120
Patent
active
054418585
ABSTRACT:
Silver halide photographic element comprising a support and at least one silver halide emulsion layer, characterised in that said silver halide emulsion layer is spectrally sensitized to infrared radiation with a tricarbocyanine dye having the formula: ##STR1## wherein, Z.sub.1 and Z.sub.2 each independently represents the atoms necessary to complete a thiazole nucleus or an oxazole nucleus,
Z.sub.3 represents the atoms necessary to complete a 5-membered N-containing aromatic ring, Q represents the atoms necessary to complete a 5- or 6-membered carbocyclic ring, R.sub.1 and R.sub.2 each independently represents an alkyl group, X.sup.- represents an anion, and n represents an integer of 1 to 2, provided that n is 1 when the dye forms an intramolecular salt.
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Chemical Abstracts 121755k, v. 80, 1974.
Bertoldi Massimo
Delprato Ivano
Massirio Sergio
Baxter Janet C.
Griswold Gary L.
Kirn Walter N.
Litman Mark A.
Minnesota Mining and Manufacturing Company
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