Light-sensitive photographic material comprising polymeric mordant layer

摘要

As mordant for mordanting diffusing anionic dyes in image receiving layers of photographic dye diffusion materials the invention makes use of addition polymers having at least 10 mole % of recurring structural units of formula I <IMAGE> I in which Q represents nitrogen or phosphorus; R1, R2, R3 each represents a carbocyclic or alkyl group or two of these substituents complete a 5- or 6-membered heterocyclic ring R4 represents hydrogen or alkyl, X(-) is an anion.