Patent ID: 6498002
Filing Date: 2002-12-24
Classification: G03C

Abstract:
A photographic material comprising a support and at least one layer which comprises at least one spectrally sensitized silver halide emulsion, and the material contains at least one compound of formula (I) whereinX is sulphur or selenium, R1 is aryl or heterocyclyl, R2 is alkyl, alkenyl, alkynyl, aralkyl or hetarylalkyl, R3 is alkyl, alkenyl, aryl, aralkyl, hetaryl or hetarylalkyl, and R4 is H, alkyl, alkenyl, aryl, aralkyl, hetaryl, or hetaralkyl, or R3, together with R4 are the remaining atoms of a carbocyclic or heterocyclic ring.