Color photographic element containing new epoxy scavengers for residual magenta coupler
申请人:EASTMAN KODAK COMPANY
公开号:EP0686873A1
公开(公告)日:1995-12-13
Thermal and photochemical yellowing of a color photographic element, such as a color print, is inhibited by incorporating into the photographic element an ionizable epoxy compound having the formula:
wherein R is H, an alkyl group, or an aryl group; L₁ is an alkyl group or an aryl group; L₂ is -O-, -CO-, -S-, -SO₂-, -PO₂-, -CO₂-, -NHCO- or -NHSO₂-, wherein L₂ may be orientated in either direction; L₃ is an alkyl group; m is 0 or 1; p is 0 or 1; and X is
-NHSO₂R', -SO₂NHR', -COOH,
wherein R' is H or an alkyl or aryl group, with the proviso that where L₂ comprises an ionizable group, X may also be an alkyl group or an aryl group.
通过在感光元件中加入具有以下式子的可离子化环氧化合物,可抑制彩色感光元件(如彩色印刷品)的热黄变和光化学黄变:
其中 R 是 H、烷基或芳基;L₁ 是烷基或芳基;L₂ 是 -O-、-CO-、-S-、-SO₂-、-PO₂-、-CO₂-、-NHCO- 或 -NHSO₂-,其中 L₂ 可定向于任一方向; L₃ 是烷基; m 是 0 或 1; p 是 0 或 1;以及 X 是
-nhso₂r'、-so₂nhr'、-cooh、
其中 R' 是 H 或烷基或芳基,但 L₂ 包含可电离基团时,X 也可以是烷基或芳基。