Light-sensitive material containing silver halide, hydrazine der

Details Light-sensitive material containing silver halide, hydrazine der Light-sensitive material containing silver halide, hydrazine der

1989-07-27

1991-07-09

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430264, 430405, 430436, 430598, 430599, G03C 172, G03C 106

Patent

active

050305425

ABSTRACT:
A light-sensitive material which comprises a light-sensitive layer and a support is disclosed. The light-sensitive layer contains silver halid grains, at least two hydrazine derivatives and a polymerizable compounds. One hydrazine derivative has the following formula [I]: ##STR1## in which one of R.sup.1 and R.sup.2 is hydrogen, and the other is hydrogen, an alkylsulfonyl group, an arylsulfonyl group or an acyl group; R.sup.3 is an aliphatic group, an aromatic group or a heterocyclic group; R.sup.4 is hydrogen, an alkyl group, an aralkyl group, an aryl group, an alkoxy group, an aryloxy group, amino or carbamoyl; at least one hydrogen atom contained in R.sup.3 or R.sup.4 is replaced with a group capable of being adsorbed on silver halide grains; G is carbonyl, sulfonyl, sulfinyl, ##STR2## (R.sup.5 has the same meanings as for R.sup.4); and each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and G may have one or more substituent groups. The hydrazine derivative having the formula [I] is adsorbed on the silver halide grains in an amount of 5.times.10.sup.-6 to 5.times.10.sup.-2 mole based on 1 mole of the silver halide grains. The other hydrazine derivative functions as a reducing agent.

REFERENCES:
patent: 4276364 (1981-06-01), Leone
patent: 4681836 (1987-07-01), Inoue et al.
patent: 4735884 (1988-04-01), Tsukahara et al.
patent: 4772531 (1988-09-01), Tsukahara et al.
patent: 4792514 (1988-12-01), Nakamura et al.

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