Photographic products and processes using alkali permeable co-polymeric layers

Claim 1

IN A PROCESS OF FORMING A PHOTOGRAPHIC IMAGE IN COLOR WHEREIN A LATENT IMAGE CONTAINED IN AN EXPOSED SILVER HALIDE EMULSION LAYER OF A PHOTOSENSITIVE ELEMENT IS DEVELOPED TO PROVIDE AN IMAGEWISE DISTRIBUTION OF COLOR-PROVIDING SUBSTANCES SELECTED FROM THE GROUP CONSISTING OF DYES AND DYE INTERMEDIATES IN SAID EMULSION, AND SAID IMAGEWISE DISTRIBUTION OF COLOR-PROVIDING SUBSTANCES IS TRANSFERRED BY AN AQUEOUS ALKALINE PROCESSING SOLUTION TO A SUPERPOSED IMAGE-RECEIVING LAYER TO IMPART TO SAID IMAGE-RECEIVING LAYER A COLOR IMAGE, THE IMPROVEMENT OF HAVING THE COLOR-PROVIDING SUBSTANCE IN A POLYMERIC LAYER BEHIND THE SILVER HALIDE EMULSION AND, DURING PROCESSING, PERMEATING SAID PHOTOSENSITIVE ELEMENT WITH SAID AQUEOUS ALKALINE PROCESSING SOLUTION AND SOLUBILIZINGK SAID COLOR-PROVIDING SUBSTANCES FROM SAID POLYMERIC LAYER, SAID POLYMERIC LAYER COMPRISING A COPOLYMER OF VINYL PHTHALIMIDE AND AN A,B-UNSATURATED ALIPHATIC MONOCARBOXYLIC ACID COMPRISING LESS THAN SIX CARBON ATOMS.