申请人:Eastman Kodak Company
公开号:US04524122A1
公开(公告)日:1985-06-18
Photographic elements and diffusion transfer assemblages employing a nondiffusible compound capable of releasing at least one diffusible cyan dye moiety, and having the formula: ##STR1## wherein: (a) J represents SO.sub.2 or CO, (b) R represents a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms or a substituted or unsubstituted aryl group of from 6 to about 12 carbon atoms, (c) G represents a hydroxy group, a salt thereof, or a hydrolyzable precursor thereof, (d) CAR represents a ballasted carrier moiety, and (e) D.sup.1, D.sup.2, and D.sup.3 each independently represents H or one or more electron-withdrawing groups selected from --SO.sub.2 Y.sup.1, --CONY.sup.1 Y.sup.2, --Cl, --COY.sup.1, --C.tbd.N and --SO.sub.2 NY.sup.1 Y.sup.2, where Y.sup.1 and Y.sup.2 each independently represents hydrogen, a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms or a substituted or unsubstituted aryl group of from 6 to about 12 carbon atoms. The released dyes have improved stability to light.
具有以下公式的非扩散性化合物和扩散转移组件,能够释放至少一个可扩散的青色染料基团:##STR1## 其中:(a) J代表SO.sub.2或CO,(b) R代表1至约10个碳原子的取代或未取代的烷基或6至约12个碳原子的取代或未取代的芳基,(c) G代表羟基、其盐或其可水解的前体,(d) CAR代表负载载体基团,(e) D.sup.1、D.sup.2和D.sup.3分别独立地代表H或一个或多个电子吸引基团,所选的基团包括--SO.sub.2 Y.sup.1、--CONY.sup.1 Y.sup.2、--Cl、--COY.sup.1、--C.tbd.N和--SO.sub.2 NY.sup.1 Y.sup.2,其中Y.sup.1和Y.sup.2各自独立地代表氢、1至约10个碳原子的取代或未取代的烷基或6至约12个碳原子的取代或未取代的芳基。释放的染料对光的稳定性得到了改善。