Direct positive silver halide light-sensitive material

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

1979-10-25

1981-01-13

Louie, Jr., Won H.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430598, 430570, 430580, 430581, 430591, 430592, 430589, 430211, 430410, 430217, 564 27, G03C 136

Patent

active

042450373

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 ##STR2## or a direct bond wherein the O or S is bonded to X.sub.1 ; R represents a divalent aliphatic residue and R.sub.3 represents an aliphatic residue or an aromatic residue. 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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