abstract |
Blends of A. DIACRYLAMIDE, PLUS B. 1,7-DICHLORO-3,3,5,5-TETRAOXO-3,5-DITHIAHEPTANE EXHIBIT SYNERGISM WITH RESPECT TO CONTROLLING BENEFICIALLY THE ''''AFTERHARDENING'''' THAT IS USUALLY OBSERVED WHEN, FOR EXAMPLE, GELATIN-CONTAINING COMPOSITIONS ARE CHEMICALLY HARDENED. The hardened gelatin compositions are particularly useful as emulsion layers in photographic elements. |