Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Antihalation or filter layer containing
Patent
1992-10-23
1994-06-21
Brammer, Jack P.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Antihalation or filter layer containing
430510, 430517, G03C 106
Patent
active
053227689
ABSTRACT:
An infrared sensitive silver halide photographic element which contains a dye represented by the following formula: ##STR1## wherein R.sub.1 and R.sub.2 each independently represent a sulfoalkyl or a sulfatoalkyl group having 2 to 4 carbon atoms, Q represents the atoms necessary to complete a 5- or 6-membered carbocyclic ring group, R.sub.3 represents an alkyl group, R.sub.4 represents an aryl group, X.sup.- represents an anion, n is an integer of 1 or 2, provided that that n is 1 when the dye forms an intramolecular salt, and Z.sub.1 and Z.sub.2 each independently represent the atoms necessary to complete an indole nucleus.
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patent: 5107063 (1992-04-01), West et al.
Delprato Ivano
Luzzi Antonio
Mana Stefano
Brammer Jack P.
Griswold Gary L.
Kirn Walter N.
Litman Mark A.
Minnesota Mining and Manufacturing Company
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