Heat developable light-sensitive material

Details Heat developable light-sensitive material Heat developable light-sensitive material

1986-04-04

1988-08-16

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430964, 430203, 430353, G03C 102

Patent

active

047644583

ABSTRACT:
A heat developable light-sensitive material is disclosed. The material comprises a support having provided thereon at least a light-sensitive silver halide, a reducing agent, a binder and an organic silver salt of the formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituted or unsubstituted alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, aryl or heterocyclic group; R.sub.2 represents a hydrogen atom or a substituted or unsubstituted alkyl group; R.sub.3 represents a halogen atom, a substituted or unsubstituted alkyl, alkoxy, amino, alkylsulfonyl, arylsulfonyl, carbamoyl, sulfamoyl or alkoxycarbonyl group or a cyano group; X represents ##STR2## wherein R.sub.4 represents a hydrogen atom or a substituted or unsubstituted alkyl group, --SO.sub.2 --, ##STR3## wherein R.sub.5 represents a substituted or unsubstituted alkyl group, and ##STR4## and l represents 0 or an integer of from 1 to 3; and when l is 2 or 3, the groups R.sub.3 may be the same or different. The material provides an image of high density with less fog in a short time even using a reduced amount of a base precursor.

REFERENCES:
patent: 4603103 (1986-07-01), Hirai et al.
Research Disclosure, Jun. 1978, Disclosure No. 17029, pp. 2-15, entitled "Photothermographic Silver Halide Systems" by J. W. Carpenter et al.

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