Patent ID: 6203973
Filing Date: 2001-03-20
Classification: C08F,G03C

Abstract:
A core-shell polymer latex in a gelatin-based photographic system comprising: a gelatin-based silver halide photographic dispersion and polymer particles comprising a core portion and a hydrophilic nonomer forming polymerized shell portion, the core portion comprising polymerized hydrophobic ethylenically unsaturated monomers with water solubility less than 1% at room temperature, the shell portion comprising polymerized monomers defined by formula (I) ##STR35##wherein X is O or NH, or NCH.sub.3,R.sub.1 and R.sub.2 are H, CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7, or C.sub.4 H.sub.9,R.sub.3 and R.sub.4 are H or CH.sub.3,n1 and n2 are integers, n1 is from 1 to 4, n2 is from 1 to 20; and wherein particles of said polymer latex is less than 50 .mu..