Heat developable light-sensitive material

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

1986-12-16

1988-03-15

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430617, 430619, 430620, 430543, 430570, 430560, 430562, 430203, 430351, 430353, 430955, G03C 106

Patent

active

047313218

ABSTRACT:
A heat developable light-sensitive material comprising a support having thereon at least one light-sensitive layer wherein at least one layer comprises a compound represented by the following general formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group, a heterocyclic group each of which may be substituted or unsubstituted; a carboxy group or a salt thereof; R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, a heterocyclic group, a sulfamoyl group, a carbamoyl group, an acyl group, an alkoxy group, an aryloxy group, an amino group, an acylamino group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyloxy group each of which may be substituted or unsubstituted; a phosphoryl group, a phosphinyl group, a thio group, a sulfinyl group or a sulfonylamino group, each of which is substituted with a substituted or unsubstituted alkyl group or aryl group; a cyano group, a hydroxy group, a carboxy group or a salt thereof; X.sub.0 represents a group capable of accelerating decarboxylation; B.sub.0 represents an organic base; and n.sub.0 represents 1 when B.sub.0 represents a monoacidic base or 2 when B.sub.0 represents a diacidic base.
The heat developable light-sensitive material containing a base precursor represented by the general formula (I) has excellent stability during preservation and provides a color image having a high color density and low fog in a short development time.

REFERENCES:
patent: 3220846 (1965-11-01), Tinker et al.
patent: 4487826 (1984-12-01), Watanabe et al.
patent: 4514493 (1985-04-01), Hirai et al.

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