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72 条记录 (耗时 0.038 秒)

    Color photothermographic elements
    1.
    发明授权
    Color photothermographic elements 失效

    公开(公告)号：US4923792A

    公开(公告)日：1990-05-08

    申请号：US368566

    申请日：1989-06-20

    申请人： Duncan M. A. Grieve ,  Stephen S. C. Poon ,  Tran V. Thien ,  Kumars Sakizadeh ,  David C. Weigel

    发明人： Duncan M. A. Grieve ,  Stephen S. C. Poon ,  Tran V. Thien ,  Kumars Sakizadeh ,  David C. Weigel

    IPC分类号： C09B23/04 ,  G03C1/498

    CPC分类号： G03C1/49854 ,  C09B23/04

    摘要： A photothermographic element comprising:(A) a coating comprising a support bearing a photothermographic medium, the medium comprising a light sensitive silver halide in reactive association with a silver salt of an organic acid and a color generating reducing agent which is a leuco compound which is oxidizable by silver ions into a colored dye of the general formula: ##STR1## in which: n=0, 1 or 2,R.sup.1 represents H, CN, lower alkyl of 1 to 5 carbon atoms, aryl or COOR.sup.6 in which R.sup.6 is lower alkyl of 1 to 5 carbon atoms or aryl,R.sup.2 and R.sup.3 independently represent CN, NO.sub.2, COOR.sup.6, SO.sub.2 R.sup.6, CONHR.sup.6 in which R.sup.6 is as defined above or R.sup.2 and R.sup.3 together represent the necessary atoms to form a 5- or 6-membered carbocyclic or heterocyclic ring having ring atoms selected from C, N, O and S atoms, whch carbocyclic or heterocyclic rings possess at least one conjugated electron withdrawing substituent,R.sup.4 and R.sup.5 independently represent H, CN or lower alkyl of 1 to 5 carbon atoms or together represent the necessary atoms to complete a 5- or 6-membered carbocyclic ring, andAr represents:(a) a thienyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms,(b) a furyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms or(c) a phenyl group which may be substituted with one or more groups selected from halogen, hydroxy, lower alkyl of 1 to 5 carbon atoms, lower alkoxy of 1 to 5 carbon atoms, NR.sup.7 R.sup.8 in which R.sup.7 and R.sup.8 are independently selected from H, lower alkyl group of 1 to 5 carbon atoms which may possess substituents selected form CN, OH, halogen and phenyl, and phenyl group optionally substituted with substituents selected from OH, halogen, lower alkyl of 1 to 5 carbon atoms or lower alkoxy of 1 to 5 carbon atoms or R.sup.7 and R.sup.8 together represent the necessary atoms to complete a morpholino group, or said phenyl group may be part of a larger ring structure comprising two or more rings which may be aromatic or heterocyclic containing up to 20 ring atoms selected from C, N, O and S; and(B) a topcoat comprising a polyvinyl alcohol resin in contact with said coating.

    Color photothermographic elements
    2.
    发明授权
    Color photothermographic elements 失效
    彩色光热敏成像元件

    公开(公告)号：US4883747A

    公开(公告)日：1989-11-28

    申请号：US200665

    申请日：1988-05-31

    申请人： Duncan M. A. Grieve ,  Stephen S. C. Poon ,  Tran V. Thien ,  Kumars Sakizadeh ,  David C. Weigel

    发明人： Duncan M. A. Grieve ,  Stephen S. C. Poon ,  Tran V. Thien ,  Kumars Sakizadeh ,  David C. Weigel

    IPC分类号： C09B23/04 ,  G03C1/498

    CPC分类号： C09B23/04 ,  G03C1/49854

    摘要： A photothermographic element comprising a support bearing a photothermographic medium, the medium comprising a light sensitive silver halide in reactive association with a silver salt of an organic acid and a color generating reducing agent which is a leuco compound which is oxidisable by silver ions into a colored dye of the general formula: ##STR1## in which: n=0, 1 or 2,R.sup.1 represents H, CN, lower alkyl of 1 to 5 carbon atoms, aryl or COOR.sup.6 in which R.sup.6 is lower alkyl of 1 to 5 carbon atoms or aryl,R.sup.2 and R.sup.3 independently represent CN, NO.sub.2, COOR.sup.6, SO.sub.2 R.sup.6, CONHR.sup.6 in which R.sup.6 is as defined above or R.sup.2 and R.sup.3 together represent the necessary atoms to form a 5- or 6-membered carbocyclic or heterocyclic ring having ring atoms selected from C, N, O and S atoms, which carbocyclic or heterocyclic rings possess at least one conjugated electron withdrawing substituent,R.sup.4 and R.sup.5 independently represent H, CN or lower alkyl of 1 to 5 carbon atoms or together represent the necessary atoms to complete a 5- or 6-membered carbocyclic ring, andAr represents:(a) a thienyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms,(b) a furyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms or(c) a phenyl group which may be substituted with one or more groups selected from halogen, hydroxy, lower alkyl of 1 to 5 carbon atoms, lower alkoxy of 1 to 5 carbon atoms, NR.sup.7 R.sup.8 in which R.sup.7 and R.sup.8 are independently selected from H, lower alkyl group of 1 to 5 carbon atoms which may possess substituents selected form CN, OH, halogen and phenyl, and phenyl group optionally substituted with substituents selected from OH, halogen, lower alkyl of 1 to 5 carbon atoms or lower alkoxy of 1 to 5 carbon atoms or R.sup.7 and R.sup.8 together represent the necessary atoms to complete a morpholino group, or said phenyl group may be part of a larger ring structure comprising two or more rings which may be aromatic or heterocyclic containing up to 20 ring atoms selected from C, N, O and S.

    Positive imaging diffusion-transfer dry silver system using formazan dye
    3.
    发明授权
    Positive imaging diffusion-transfer dry silver system using formazan dye 失效
    使用甲an染料的正成像扩散转移干银系统

    公开(公告)号：US5278024A

    公开(公告)日：1994-01-11

    申请号：US998445

    申请日：1992-12-30

    申请人： Richard C. Cotner ,  David C. Weigel ,  Kumars Sakizadeh

    发明人： Richard C. Cotner ,  David C. Weigel ,  Kumars Sakizadeh

    IPC分类号： G03C1/498 ,  G03C8/40 ,  G03C5/54

    CPC分类号： G03C1/49854 ,  G03C8/4033 ,  G03C8/4066

    摘要： A photothermographic composite structure for use in a solvent-free dye thermal positive imaging diffusion-transfer process comprising:(a) an image-receiving element comprising a polymeric dyeable image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and(b) strippably adhered to said image-receiving element, an imageable photothermographic element comprising in at least one layer thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to said silver source material, and a formazan dye.

    摘要翻译： 一种用于无溶剂染料热阳性成像扩散转移方法的光热复合结构，包括：（a）图像接收元件，其包含玻璃化转变温度在20度至200度范围内的聚合物可染色图像接收层 以及（b）可剥离地粘附到所述图像接收元件，可成像的光热敏成像元件在其至少一个层中包含粘合剂，银源材料，催化接近所述银源材料的感光卤化银，以及 甲an染料