Dispersion containing nonionic surface acting agent with units of polyoxyethylene and polyoxypropylene

Claim 1

A MULTILAYER PHOTOGRAPHIC LIGHT-SENSITIVE SILVER HALIDE ELEMENT CONTAINING A DISPERSION COMPRISING AN AQUEOUS GELATIN SOLUTION HAVING DISPERSED THEREIN AT LEAST ONE OLEPHILIC MATEERIAL SELECTED FROM THE GROUP CONSISTING OF AN OLEPHILIC DYE FOR A SILVER DYE BLEACHING PROCESS, AN OLEOPHILIC COUPLER FREE OF A WATER SOLUBILIZING GROUP, AN OLEOPHILIC ULTRAVIOLET ABSORBENT, AN OLEOPHILIC ANTIOXIDANT, AN OLEPHILIC DYE IMAGE STABILIZING AGENT AND AN OLEOPHILIC FLUORESCNT BRIGHTENING AGENT, IN THE PRESENCE OF (A) A NONIONIC SURFACE ACTIVE AGENT CONTAINING POLYOXYPROPYLENE UNITS HAVING A MOLECULAR WEIGHT OF GREATER THAN 500 AND POLYOXYETHYLENE UNITS AND A MOLAR RATIO OF SAID POLYOXYETHYLENE UNITS TO SAID POLYOXYPROPYLENE UNITS RANGING FROM 0.5 TO 0.6, AND (B) AN ANIONIC SURFACE ACTIVE AGENT HAVING AN -OSO3M GROUP OR AN -SO3M GROUP, WHEREIN M REPRESENTS A MONOVALENT CATION, AND A HYDROPHOBIC GROUP, SAID NONIONIC SURFACE ACTIVE AGENT BEING A SLIGHTLY WATER-SOLUBLE POLYOXYETHYLENE/POLYOXYPROPYLENE BLOCK POLYMER WHEREIN THE ENTIRE POLYOXYPROPYLENE PORTION THEREOF HAS A MOLECULAR WEIGHT GREATER THAN 500 AND WHEREIN THE MOLAR RATIO OF ALL OF THE POLOXYETHYLENE UNITS THEREOF TO ALL OF THE POLYOXYPROPYLENE UNITS THEREOF RANGES FROM 0.1 TO 0.6.