Photographic element with near-infrared antihalation layer

USRE36174E · kind E · reissue

Assignee

• Sterling Diagnostic Imaging, Inc. · US

Inventors

• Dietrich M. Fabricius · Hendersonville, US
• Thomas Schelhorn · Neu-Isenburg, DE

Key dates

• Filing date: May 1, 1997
• Grant date: Mar 30, 1999
• Expiry date: May 1, 2017

Classification

• Technology area (CPC —): General

Abstract

Disclosed is a photographic element comprising an antihalation dye of formula: ##STR1## wherein PA0 X.sup.1 ..,.!. .Iadd.and .Iaddend.X.sup.2 independently represent..s.!. --CR.sup.8 R.sup.9 --, --S--, --Se--, --NR.sup.10 --, --CH.dbd.CH-- or --O--; PA0 n is an integer of 2 or 3; PA0 R.sup.1 and R.sup.2 independently represent alkyl of 1 to 10 carbons or substituted alkyl of 1 to 10 carbons; PA0 R.sup.3 represents ..a ring chosen from the set consisting of aryl, substituted aryl, and.!. a heterocyclic ring; PA0 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..,.!..Iadd.; or .Iaddend.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.!. .Iadd.six-membered .Iaddend.ring or a substituted aromatic ..10-member.!. .Iadd.10-membered .Iaddend.ring; PA0 R.sup.8 ..,.!. .Iadd.and .Iaddend.R.sup.9 independently represent alkyl of 1-10 carbons, substituted alkyl of 1-10 carbons, aryl of 6-10 carbons, substituted aryl o…