Direct positive silver halide light-sensitive material

Details Direct positive silver halide light-sensitive material Direct positive silver halide light-sensitive material

1979-04-04

1981-03-10

Louie, Jr., Won H.

Radiation imagery chemistry: process, composition, or product th

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

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

430223, 430226, 430505, 430559, 430560, 430570, 430580, 430581, 430591, 430592, 430598, 564 27, G03C 106, G03C 700, G03C 176, G03C 136

Patent

active

042555116

ABSTRACT:
A direct positive light-sensitive silver halide photographic material comprising a support having thereon a layer containing a compound represented by the formula (I): ##STR1## wherein R.sub.1 represents an aliphatic residue or an aromatic residue; R.sub.2 represents a hydrogen atom, an aliphatic residue, or an aromatic residue; X.sub.1 and X.sub.2, which may be the same or different, each represents a divalent aromatic residue; and Y represents --R--, --O--R or --S--R-- wherein R represents a divalent aliphatic residue and the O or S is bonded to X.sub.1. The compound is particularly effective in combination with a diffusible dye releasing dye image providing compound having an o-hydroxyarylsulfamoyl group.

REFERENCES:
patent: 3227550 (1966-01-01), Whitmore et al.
patent: 4030925 (1977-06-01), Leone et al.
patent: 4080207 (1978-03-01), Leone et al.

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