Photographic element containing a temporary barrier layer between reactants and polymeric compositions useful therein
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0009795A2
公开(公告)日:1980-04-16
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.
本发明公开了一种在反应物之间含有临时阻挡层的感光元件和对其有用的聚合物组合物。 这些组合物包括以下物质的混合物:(1) 5%至 95%(按重量计)的聚合物,其中包括 55%至 85%(按重量计)的亚乙烯基氯化物、5%至 35%(按重量计)的乙烯基不饱和单体,以及 0%至 20%(按重量计)的乙烯基不饱和羧酸;(2) 95%至 5%(按重量计)的聚合物羧基酯-内酯。 由这种组合物形成的阻挡层尤其可用作彩色图像转移感光元件中的加工定时层。