公开(公告)号：US4450223A

公开(公告)日：1984-05-22

申请号：US466316

申请日：1983-02-14

Applicant: Raphael K. Van Poucke ,  Christian C. Van de Sande ,  Andree Verhecken

Inventor： Raphael K. Van Poucke ,  Christian C. Van de Sande ,  Andree Verhecken

IPC: G03C8/22 ,  C09B29/01 ,  C09B29/095 ,  C09B29/28 ,  C09B29/50 ,  G03C8/10 ,  G03C1/40 ,  G03C1/10 ,  G03C1/48 ,  G03C5/54

CPC classification number: G03C8/10 ,  C09B29/0003 ,  C09B29/095 ,  C09B29/28 ,  C09B29/366 ,  Y10S430/156 ,  Y10S430/158 ,  Y10S430/159 ,  Y10S430/161

Abstract: A photographic silver halide material comprising a compound which is capable of being reduced by a silver halide developing agent at a rate slower than that of image-wise developable silver halide and in reduced state is capable of releasing a photographically useful group, characterized in that said compound corresponds to the following formula: ##STR1## wherein: R.sup.10 and R.sup.20 (same or different)(1) represent an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl group or an aralkyl group including said groups in substituted form,(2) represent an aryl group including a substituted aryl group, or(3) represent a heterocyclic ring residue including such residue in substituted form, orR.sup.10 and R.sup.20 are ringclosed, either R.sup.10 or R.sup.20 containing a ballasting group conferring diffusion resistance to the compound in hydrophilic colloid media when penetrated by an aqueous alkaline liquid;L.sup.1 and L.sup.2 (same or different) represent a ##STR2## --SO.sub.2 --; --NHCO--; --NHSO.sub.2 --; ##STR3## --O--SO.sub.2 -- or ##STR4## group; p and q (same or different) represent an integer 0 or 1;Z represents an atom or an atom group which is electronegative with respect to carbon, andPUG represents together with Z a releasable photographically useful group.

Abstract translation: 包含能够以比成像显影性卤化银慢的还原状态的卤化银显影剂还原的化合物的照相卤化银材料能够释放照相用的基团，其特征在于所述 化合物对应于下式：其中：R 10和R 20（相同或不同）（1）表示烷基，环烷基，烯基，环烯基或包含取代基的芳烷基， （2）表示包含取代芳基的芳基，或（3）代表包含取代形式的残基的杂环残基，或R 10和R 20被封闭，R10或R20含有赋予化合物扩散阻力的压载基团 在亲水胶体介质中浸入碱性水溶液; L1和L2（相同或不同）表示-SO 2 - ; -NHCO-; -NHSO 2; -O-SO2-或组; p和q（相同或不同）表示整数0或1; Z表示相对于碳具有电负性的原子或原子团，PUG与Z一起表示可剥离的照相用的基团。