Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1999-09-30
2000-10-31
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430507, 430510, 430614, 430615, G03C 7392, G03C 1825
Patent
active
061400297
ABSTRACT:
The invention provides a silver halide photographic element comprising a non-light sensitive layer containing elemental silver and a nitrogen heterocycle compound having a ClogP of at least 4.5, which compound comprises a ring system of one or more fused rings containing at least one --N--H bond, the ring system comprising a total of at least three nitrogen ring members and the associated bonds; provided that the compound does not contain an --SH group or >C.dbd.S group and does not react with an oxidized developer.
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Allway Philip A.
Boff Jane S.
Clark Bernard A.
Friedrich Louis E.
Singer Stephen P.
Eastman Kodak Company
Kluegel Arthur E.
Schilling Richard L.
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