申请人:AGFA-GEVAERT
naamloze vennootschap
公开号:EP0731385A1
公开(公告)日:1996-09-11
A photographic element is disclosed containing a compound capable of releasing image-wise a photographic useful group (PUG) based on a mechanism involving radical formation under development conditions and splitting of a homolytically labile bond. In a preferred embodiment the compound capable of releasing the PUG is a hydrazine derivative or a 1-aryl-3-pyrazolidinone derivative.
本发明公开了一种感光元件,该元件含有一种化合物,该化合物能够在显影条件下形成自由基并分裂同溶键,从而在图像上释放出感光有用基团(PUG)。在一个优选的实施方案中,能够释放 PUG 的化合物是肼衍生物或 1-芳基-3-吡唑烷酮衍生物。