NOVEL POLYMERS AND THEIR USE IN DIFFUSION REGULATORY LAYERS OF DIFFUSION-TRANSFER FILMS

摘要

P NOVEL POLYMERS AND THEIR USE IN DIFFUSION REGULATION LAYERS OF DIFFUSION-TRANSFER FILMS. / P P THESE NOVEL POLYMERS COMPRISE RECURRENCE UNITS CAPABLE OF BEING B-ELIMINATED IN AN ALKALI ENVIRONMENT, WHICH HAVE THE FORMULA: BR/ (CF DRAWING IN BOPI) BR/ IN WHICH R IS H OR A LOWER ALKYL GROUP; R IS H OR A LOWER ALKYL GROUP; R AND R INDEPENDENTLY ARE EACH H, A LOWER ALKYL GROUP, A LOWER ALKYL GROUP, ARYL, ALKARYL, ARALKYL, CYCLO-ALKYL, SUBSTITUTED, OR WELL R, AND WITH THE C TO WHICH THEY ARE BOUND, A CARBOCYCLIC OR HETEROCYCLIC CORE, OR WHEN IT IS SUBSTITUTED ON C-METHYLENIC IMMEDIATELY NEARLY WITH N R FORM PART A CYCLE CONTAINING N, SUBSTITUTED OR NON-SUBSTITUTED; A, D, and E are H, the groups CH and CH, provided that no more than one of these three symbols is CH or CH; IS A GROUP ACTIVATING B-ELIMINATION; AND N VALUES 1 TO 6. USE OF THESE POLYMERS IN DIFFUSION REGULATORY LAYERS FOR DIFFUSION-TRANSFER FILMS. / P