Fluorinated 1-hydroxy-2-naphthamide coupler compositions and pho

Details Fluorinated 1-hydroxy-2-naphthamide coupler compositions and pho Fluorinated 1-hydroxy-2-naphthamide coupler compositions and pho

1979-07-23

1980-11-11

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Product having sound record or process of making

430449, 430505, 430546, 430552, 430553, G03C 724, G03C 140

Patent

active

042333890

ABSTRACT:
Fluorinated 1-hydroxy-2-naphthamide couplers which are N-substituted with a lower alkylphenoxybutyl ballasting group are disclosed as well as compositions and photographic elements containing these couplers in coupler solvent particles. The coupler solvent particles are comprised of a combination of a coupler solvent and the coupler capable of permitting the formation of a microcrystalline dye. Surprisingly these microcrystalline dyes exhibit a broadened absorption characteristic in the 750 to 850 nm region of the spectrum. Dye images having such absorption characteristics are particularly suited to forming integral infrared absorbing sound tracks in photographic elements, such as motion picture projection films.

REFERENCES:
patent: 2266452 (1941-12-01), Vittum et al.
patent: 2373821 (1945-04-01), Frohlich et al.
patent: 3880661 (1975-04-01), Lau et al.
patent: 3998642 (1976-12-01), Lau et al.
patent: 4178183 (1979-12-01), Ciurca et al.
Research Disclosure No. 13460, Jun. 1975.

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