申请人:AGFA-GEVAERT
naamloze vennootschap
公开号:EP0079630A1
公开(公告)日:1983-05-25
The present invention relates to compounds of the type comprising a ballasting group which renders said compounds substantially fast to diffusion in hydrophilic colloid media and at least one photographically useful group which is chemically linked to said ballasting group, and to photographic elements containing at least one compound of the type referred to.
The ballasting groups in the compounds according to the present invention are derived from mono- or di-esters or -ethers of glycerol. The linkage between ballasting group and photographically useful group can be realized via acid chlorides which are derived from the above-said glycerol derivatives.
本发明涉及一类化合物,该化合物包含一个压载基团,该基团使所述化合物在亲水胶体介质中的扩散速度大大加快,还涉及至少一个与所述压载基团化学连接的对摄影有用的基团,以及含有至少一种上述化合物的摄影元件。
本发明化合物中的压载基团来自甘油的单酯或二酯或醚。压载基团和摄影用基团之间的连接可以通过酸性氯化物来实现,酸性氯化物来自上述甘油衍生物。