Heat developable light-sensitive oxazoline containing element

Claim 1

A heat developable light-sensitive element comprising a support having therein or in at least one layer thereon (a) an organic silver salt, (b) a light-sensitive silver halide or a compound capable of forming a light-sensitive silver halide upon reaction with the organic silver salt, (c) a reducing agent and (d) an oxazolinone compound represented by the following general formula (I): ##STR14## wherein R 1 , R 2 , R 3 and R 4 each is a hydrogen atom; an alkyl group having 1 to 22 carbon atoms; a haloalkyl group having 1 to 22 carbon atoms; an amino group; a hydroxyalkyl group having 1 to 22 carbon atoms; an allyl group; a naphthyl group; a benzyl group; a ##STR15## group in which R 5 is a hydrogen atom, a halogen atom, an alkyl group, an alkylthio group, an amino group or an alkylamino group; a benzyloxy group; an aryl group; a haloaryl group; an alkylaryl group; an alkoxyaryl group; an -OR 6 group in which R 6 is hydrogen atom, an alkyl group, an allyl group, an aryl group or an alkoxyaryl group; a ##STR16## group in which R 7 and R 8 each is a hydrogen atom, an alkyl group, an aryl group or an allyl group; a cyclohexyl group; a --CH 2 OR 9 group in which R 9 is a naphthyl group; or a --CH 2 R 10 in which R 10 is a morpholino group, a piperadino group or an alkylthio group; and X is a hydrogen atom, a chlorine atom or a bromine atom.