Photographic element with near-infrared antihalation layer
AssigneeE. I. Du Pont de Nemours and Company
InventorsDietrich M. Fabricius, Thomas Schelhorn
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AssigneeE. I. Du Pont de Nemours and Company
InventorsDietrich M. Fabricius, Thomas Schelhorn
Estimating the term…
Disclosed is a photographic element comprising an antihalation dye of formula: ##STR1## wherein X.sup.1, X.sup.2 independently represents --CR.sup.8 R.sup.9 --, --S--, --Se--, --NR.sup.10 --, --CH.dbd.CH-- or --O--; n is an integer of 2 or 3; R.sup.1 and R.sup.2 independently represent alkyl of 1 to 10 carbons or substituted alkyl of 1 to 10 carbons; R.sup.3 represents a ring chosen from the set consisting of aryl, substituted aryl, and a heterocyclic ring; R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently represent hydrogen, alkyl of 1-10 carbons, substituted alkyl of 1-10 carbons, R.sup.4 and R.sup.5 taken together or R.sup.6 and R.sup.7 taken together may represent the atoms necessary to form a 5 or 6-membered aliphatic ring, an aromatic six-membered ring, an aromatic 10-membered ring, a substituted aromatic six-member ring or a substituted aromatic 10-member ring; R.sup.8, R.sup.9 independently represent alkyl of 1-10 carbons, substituted alkyl of 1-10 carbons, aryl of 6-10 carbons, substituted aryl of 6-10 carbons; R.sup.10 represents an alkyl of 1-10 carbons, substituted alkyl of 1-10 carbons, aryl of 6-10 carbons, substituted aryl of 6-10 carbons.
A photographic element comprising an absorbing amount of the antihalation dye:
A photographic element comprising a dye of formula:
A photographic element comprising a dye of formula:
Dependencies are inferred from the claim text.