Silver halide photographic materials

Details Silver halide photographic materials Silver halide photographic materials

1988-04-29

1989-06-20

Shah, Mukund J.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430443, 430493, 430505, 430542, 430544, 430546, 430600, 430603, 430613, 430955, 430957, 430958, G03C 102, G03C 146, G03C 108, G03C 106

Patent

active

048408875

ABSTRACT:
A silver halide photographic material is disclosed, which comprises a support having formed thereon at least one silver halide emulsion layer, wherein the silver halide photographic material contains, in the silver halide emulsion layer, other hydrophilic colloid layer(s), or both, a compound represented by formula (I) ##STR1## wherein EAG represents an electron accepting group, --SO.sub.2 -- represents a sulfonylene group; X represents an oxygen atom (--O--), a sulfur atom (--S--) or an atomic group (--N(R.sub.2)--) containing a nitrogen atom; the single bond between --SO.sub.2 and X being cleaved after EAG receives an electron, wherein R.sub.1 and R.sub.2 each represents a simple bond or a group other than a hydrogen atom; said R.sub.1, R.sub.2, EAG may be combined with each other to form a ring; (Time) represents a group capable of releasing a photographically useful group (PUG) upon the cleavage of the SO.sub.2 --X bond; t represents 0 or 1; when said t is 0, (Time) represents a simple bond and X may be a part of PUG; the solid line represents a bond; the dotted lines show that at least one of them is bonded.

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