Photographic elements and processes utilizing imagewise reductio

Details Photographic elements and processes utilizing imagewise reductio Photographic elements and processes utilizing imagewise reductio

1985-01-02

1986-02-04

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Chromatic image produced from achromatic reproduction image

430371, 430375, 430542, G03C 140, G03C 726

Patent

active

045686335

ABSTRACT:
A process for obtaining highly stable color photographic images utilizes a silver halide photographic element comprising an essentially colorless, immobile compound which is capable of complexing with ferrous ions to form a dye. The complexing compound contains a complexing moiety which is represented by the formula: ##STR1## wherein m is zero or a positive integer 1 to 3, n and p are independently 0 or 1 and represents a single or double bond. Z is R.sup.1 --N.dbd., O.dbd., S.dbd., R.sup.1 --P.dbd., (R.sup.1).sub.2 P-- or (R.sup.1).sub.3 P.dbd., and when Z is (R.sup.1).sub.2 P--, n is 1, otherwise n is 0. R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently hydrogen, amino, hydroxy, mercapto, alkoxy, alkyl, aryl or a heterocyclic moiety. When R.sup.6 is so defined, p is 1 and is a single bond. If m is 0, R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, and R.sup.3 and R.sup.4 taken together can independently represent the carbon and heteroatoms necessary to complete a substituted or unsubstituted carbocyclic or heterocyclic nucleus, or if m is 1 to 3, R.sup.1 and R.sup.2, R.sup.5 and R.sup.6, and R.sup.3 and R.sup.4 can independently represent the carbon and heteroatoms necessary to complete a substituted or unsubstituted heterocyclic nucleus. When R.sup.5 and R.sup.6 are so defined, p is 0 when is a double bond, and p is 1 when is a single bond.

REFERENCES:
patent: 1305962 (1919-06-01), Crabtree
patent: 1389742 (1921-09-01), Crabtree
patent: 1776155 (1930-09-01), Kogel
patent: 1945772 (1934-02-01), Dassonville
patent: 2264334 (1941-12-01), Schmidt
patent: 2533182 (1950-12-01), Sargent
patent: 3660092 (1972-05-01), Frank et al.
Tanaka et al., Photo. Sci. Eng., 25(1), pp. 32-34 (1981).
Schilt, Talanta, 13, pp. 895-902 (1966).

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