公开(公告)号：US5985533A

公开(公告)日：1999-11-16

申请号：US24034

申请日：1998-02-16

申请人： Robert F. Romanet ,  Paul A. Burns ,  Susan M. Fischer ,  Paul P. Spara ,  Rajiv P. Balasubramanian ,  David G. Lincoln ,  Daniel L. Kapp

发明人： Robert F. Romanet ,  Paul A. Burns ,  Susan M. Fischer ,  Paul P. Spara ,  Rajiv P. Balasubramanian ,  David G. Lincoln ,  Daniel L. Kapp

IPC分类号： G03C7/38 ,  G03C1/08 ,  G03C7/26 ,  G03C7/32

CPC分类号： G03C7/3835

摘要： The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula II: whereinX is hydrogen or a coupling-off group;R.sup.1, R.sup.2, and R.sup.3 are independently selected alkyl groups, provided that any two of R.sup.1, R.sup.2, and R.sup.3 may join to form a ring;R.sup.4 is hydrogen or a substituent, provided that R.sup.3 and R.sup.4 may join to form a ring when R.sup.4 is a substituent;R.sup.a is hydrogen or a substituent;Y is a substituent with at least one Y substituent having a formula selected from the group consisting of --CONR.sup.b R.sup.c, --NHCOR.sup.d, and --SO.sub.2 R.sup.e, wherein R.sup.b, R.sup.c, and R.sup.d are independently selected from the group consisting of H, alkyl, aryl, and heterocyclic groups and R.sup.e is selected from the group consisting of an alkyl group, an aryl group, a heterocyclic group, --NR.sup.g R.sup.h, and --OR.sup.i wherein R.sup.g, R.sup.h, and R.sup.i are selected from the same group as R.sup.a and n is from 1 to 5.The element exhibits improved magenta dye light stability.

摘要翻译： 本发明提供了一种照相元件，其包含卤化银乳剂层，其具有与式II所代表的染料形成成色剂：其中X为氢或偶合离去基团; R 1，R 2和R 3是独立选择的烷基，条件是R 1，R 2和R 3中的任何两个可以连接形成环; R4是氢或取代基，条件是当R 4为取代基时，R 3和R 4可以连接形成环; Ra是氢或取代基; Y是具有至少一个具有选自-CONRbRc，-NHCORd和-SO2Re的Y取代基的取代基，其中Rb，Rc和Rd独立地选自H，烷基，芳基， 和杂环基，并且Re选自烷基，芳基，杂环基，-NRgRh和-ORi，其中R g，Rh和R i选自与Ra相同的基团，n为1 该元件表现出改善的品红染料光稳定性。

公开(公告)号：US5972587A

公开(公告)日：1999-10-26

申请号：US024032

申请日：1998-02-16

申请人： Robert F. Romanet ,  Paul A. Burns ,  Susan M. Fischer ,  Paul P. Spara ,  Rajiv P. Balasubramanian ,  David G. Lincoln

发明人： Robert F. Romanet ,  Paul A. Burns ,  Susan M. Fischer ,  Paul P. Spara ,  Rajiv P. Balasubramanian ,  David G. Lincoln

IPC分类号： G03C7/384 ,  G03C7/38 ,  G03C1/08 ,  G03C7/26 ,  G03C7/32

CPC分类号： G03C7/3835

摘要： The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula II: ##STR1## wherein X is hydrogen or a coupling-off group;R.sup.1, R.sup.2, and R.sup.3 are independently selected alkyl groups, provided that any two of R.sup.1, R.sup.2 and R.sup.3 may join to form a ring;R.sup.4 is hydrogen or a substituent, provided that R.sup.3 and R.sup.4 may join to form a ring when R.sup.4 is a substituent;R.sup.a is hydrogen or a substituent;each Y is an independently selected substituent with at least one Y substituent in the 2-position (relative to oxygen) having the formula --NHSO.sub.2 R.sup.f, wherein R.sup.f is an alkyl or aryl group, and n is from 1 to 5.The element exhibits improved magenta dye light stability.

摘要翻译： 本发明提供了一种照相元件，其包含卤化银乳剂层，其具有与式II所代表的染料形成成色剂：其中X为氢或偶合离去基团; R 1，R 2和R 3是独立选择的烷基，条件是R 1，R 2和R 3中的任何两个可以连接形成环; R4是氢或取代基，条件是当R 4为取代基时，R 3和R 4可以连接形成环; Ra是氢或取代基; 每个Y是在具有式-NHSO 2 R f的2-位（相对于氧）中具有至少一个Y取代基的独立选择的取代基，其中Rf是烷基或芳基，n是1至5.元素表现出改进 品红染料光稳定。