Light-sensitive material containing emulsified substances

Abstract From the Canadian patent

A light-sensitive material containing in emulsified form photographic additives and a process for introducing these photographic additives in emulsified form into photographic hydrophilic colloid layers with at least one N-alkylphtalimide derivative of the formula in which, R1 represents a cycloalkyl group a branched alkyl group containing 3 to 18 carbon atoms, a straight chain alkyl group containing 2 to 18 carbon atoms interrupted by ether oxygen or substituted by halogen hydroxyl, acyloxy, carboxyl, alkoxy carbonyl or alkyl carbonyl R2 represents hydrogen or a substituted selected halogen and hydroxyl C1, to C4 alkoxy, carboxyl, C1 to C4 alkoxy-carbonyl and phenyl groups; the material …