Black and white photographic element

Details Black and white photographic element Black and white photographic element

1996-07-31

1999-07-27

Letscher, Geraldine

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Antihalation or filter layer containing

430510, 430517, 430570, 430581, 430585, G03C 106, G03C 1815, G03C 1825

Patent

active

059288493

ABSTRACT:
A black and white photographic element contains a filter dye of Formula (I): ##STR1## wherein each R.sup.1 is independently substituted or unsubstituted alkyl, substituted or unsubstituted alkoxy, cyano, hydroxy, carboxy, substituted or unsubstituted amido, or substituted or unsubstituted sulfonamido;
n is 1-4;
R.sup.2 is H, substituted or unsubstituted alkyl or amido;
each of R.sup.3 and R.sup.4 is independently hydrogen or substituted or unsubstituted alkyl; and
M is a cation.

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Japanese Patent Abstract JP 7104429.

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