Patent ID: 6316177
Filing Date: 2001-11-13
Classification: G03C

Abstract:
A color silver halide photographic element comprising a light-sensitive silver halide emulsion layer or a non-silver containing light-insensitive layer, said light-sensitive or light-insensitive layer containing a polymer compound comprising a heterocycle unit derived from:(a) a heterocycle monomer (1) comprising two or more annulated rings containing, in total, a minimum of three ring heteroatoms of which no more than two of the heteroatoms are connected in sequence to each other and (2) having a ClogP less than 6.2; or(b) a monocyclic heterocycle monomer having exactly three ring heteroatoms and having a ClogP less than 8.75;with the proviso that the heterocycle unit does not contain a hydroxy or mercapto group (or their tautomeric equivalent), and does not react with oxidized developer; andthe amount of the polymer compound in the element being sufficient to increase the photographic speed of the element compared to the same element without the compound.