| 摘要 |
<p>A photographic element containing a temporary barrier layer between reactants and polymeric compositions useful therein are disclosed. The compositions comprise a mixture of (1) from 5 to 95 percent by weight of a polymer comprising from 55 to 85 percent by weight of vinylidene chloride, 5 to 35 percent by weight of an ethylenically unsaturated monomer, and optionally from 0 to 20 percent by weight of an ethylenically unsaturated carboxylic acid, and (2) from 95 to 5 percent by weight of a polymeric carboxy-ester-lactone. A barrier formed from such composition is particularly useful as a process timing layer in color image transfer photographic elements. </p> |
