Color diffusion transfer photographic film unit with 1-M-(methyl

Details Color diffusion transfer photographic film unit with 1-M-(methyl Color diffusion transfer photographic film unit with 1-M-(methyl

1985-06-19

1986-02-18

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430440, 430480, 430483, G03C 140, G03C 530, G03C 554

Patent

active

045713766

ABSTRACT:
A color diffusion photographic film unit comprising (a) a light sensitive element comprising at least one photosensitive silver halide emulsion layer associated with a redox compound adapted to release a diffusible dye, (b) an image receiving element, and (c) an alkaline processing composition element, wherein a 1-m-alkyl-substituted phenyl-3-pyrazolidinone electron transfer agent of the following general formula (I) or a precursor thereof is incorporated in at least one of said elements (a) through (c) ##STR1## wherein R.sub.1 is methyl or ethyl and R.sub.2 is hydrogen or a group cleavable under alkaline conditions is disclosed.

REFERENCES:
patent: 3247201 (1966-04-01), Demarle et al.
patent: 3453109 (1969-07-01), Lee
patent: 4209580 (1980-06-01), McCreary et al.
patent: 4463081 (1984-07-01), Michno et al.
patent: 4471045 (1984-09-01), Bodem et al.

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