Photographic elements containing new dye-forming tris couplers

Details Photographic elements containing new dye-forming tris couplers Photographic elements containing new dye-forming tris couplers

1993-12-17

1994-08-23

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430381, G03C 732

Patent

active

053407083

ABSTRACT:
Dye-forming couplers provided by the invention are tris coupler compounds, each comprising three coupling moieties bonded to a phosphorous-containing tris linking group represented by ##STR1## has the structure (I): ##STR2## wherein each --R-- is independently a substituted or unsubstituted alkylene, alkoxylene, arylene, or aryloxylene group. Dyes of the invention are the dyes that are formed by coupling reaction of an oxidized photographic color developing agent and the new tris couplers of the invention. Photographic elements of the invention each comprise a support having thereon a photographic silver halide emulsion layer and one or more of the new tris couplers of the invention.

REFERENCES:
patent: 3265506 (1966-08-01), Weissberger et al.
patent: 4157919 (1979-06-01), Lau
patent: 4238564 (1980-12-01), Fryberg
patent: 4241172 (1980-12-01), Okaniwa et al.
patent: 4540654 (1985-09-01), Sato et al.
patent: 4621046 (1986-11-01), Sato et al.

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