Photographic element with near-infrared antihalation layer

Details Photographic element with near-infrared antihalation layer Photographic element with near-infrared antihalation layer

1993-05-26

1994-07-19

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Antihalation or filter layer containing

430517, 548455, 548478, G03L 106

Patent

active

053308840

ABSTRACT:
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--;

REFERENCES:
patent: 4882265 (1989-11-01), Laganis et al.
patent: 4933269 (1990-06-01), Parton et al.
patent: 5107063 (1992-04-01), West et al.
patent: 5190854 (1993-03-01), Goedeweeck
Synthetic Communications, 22(17) 2593-2598(1992) Facile Derivatizations of Heptamethine Cyanine Dyes-Sucjan Strekowski et al.-Dept of Chemistry, Georgia State University.
American Chemical Society, pp. 4578-4580M16(1992) Substitution Reactions of a Nucleofugal Group in Heptamethine Cyanine Dyes. Synthesis of an Isothiocycano Derivative for Labeling of Proteins with a Near-Infrared Chromophore.

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