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8 条记录 (耗时 0.104 秒)

    Photographic elements containing 2-equivalent pyrazolone magenta dye forming couplers and fade reducing compounds
    2.
    发明授权
    Photographic elements containing 2-equivalent pyrazolone magenta dye forming couplers and fade reducing compounds 失效
    含有2-当量吡唑啉酮品红色染料形成成色剂和褪色还原化合物的照相元件

    公开(公告)号：US5484696A

    公开(公告)日：1996-01-16

    申请号：US362635

    申请日：1994-12-22

    申请人： Rakesh Jain ,  William R. Schleigh ,  Robert C. Stewart

    发明人： Rakesh Jain ,  William R. Schleigh ,  Robert C. Stewart

    IPC分类号： G03C7/00 ,  G03C7/30 ,  G03C7/384 ,  G03C7/392 ,  G03C7/38

    CPC分类号： G03C7/3012 ,  G03C7/39296 ,  G03C7/384 ,  G03C7/39216 ,  G03C7/39276

    摘要： A silver halide photographic element having a light sensitive silver halide which layer also contains a 2-equivalent pyrazolone magenta coupler, a compound of formula (S) below, and a hydroquinone compound of formula (R) below: ##STR1## wherein: R.sub.1 is an alkyl group; and R.sub.2, R.sub.3 and R.sub.4 are independently an alkyl group or H.The presence of the compound (S) when used with the two-equivalent pyrazolone magenta coupler and compound (R), can result in low magenta dye fade, increased wavelength of maximum absorption of the magenta dye and increased magenta dye bandwidth.

    摘要翻译： 一种具有感光卤化银的卤化银照相元件，该层还含有2-当量的吡唑啉酮品红成色剂，下式（S）的化合物和下式（R）的氢醌化合物： 其中：R1是烷基; 并且R2，R3和R4独立地是烷基或H.当与双当量吡唑啉酮品红成色剂和化合物（R）一起使用时，化合物（S）的存在可导致低品红色染料褪色，增加最大波长 品红染料的吸收和品红色染料带宽的增加。

    Photographic elements containing 2-equivalent pyrazolone magenta dye forming couplers and stabilizing compounds
    3.
    发明授权
    Photographic elements containing 2-equivalent pyrazolone magenta dye forming couplers and stabilizing compounds 失效
    包含2-当量吡唑啉酮品红色染料形成成色剂和稳定化合物的照相元件

    公开(公告)号：US5491054A

    公开(公告)日：1996-02-13

    申请号：US361922

    申请日：1994-12-22

    申请人： Rakesh Jain ,  William R. Schleigh ,  Robert C. Stewart

    发明人： Rakesh Jain ,  William R. Schleigh ,  Robert C. Stewart

    IPC分类号： G03C7/384 ,  G03C7/30 ,  G03C7/392

    CPC分类号： G03C7/3012 ,  G03C7/39296

    摘要： A silver halide photographic element comprising a light sensitive silver halide containing layer which also contains a 2-equivalent pyrazolone magenta coupler, a thiomorpholine dioxide compound which has an alkoxy substituted aryl group substituent on the ring nitrogen, a compound of formula (I) below, and a hydroquinone compound of formula (R) below: ##STR1## wherein: R.sub.3, R.sub.4 and R.sub.31 are independently an alkyl group or H; R.sub.11, R.sub.12 and R.sub.21 are alkyl groups.The presence of the compound (I) when used with the two-equivalent pyrazolone magenta coupler and compounds (R) and (S), can result in a photographic element with low printout and/or thermal discoloration problems.

    摘要翻译： 包含还含有2-当量吡唑啉酮品红成色剂的光敏卤化银含有层，在环氮上具有烷氧基取代的芳基取代基的硫代吗啉二氧化物化合物的卤化银照相元件，下式（I）的化合物， 和下式（R）的对苯二酚化合物：其中：R 3，R 4和R 31独立地为烷基或H; R11，R12和R21是烷基。 当与双当量吡唑啉酮品红成色剂和化合物（R）和（S）一起使用时，化合物（I）的存在可导致具有低打印和/或热变色问题的照相元件。

    2-substituted-1-hydroxyindoles
    6.
    发明授权
    2-substituted-1-hydroxyindoles 失效
    2-取代的1-羟基吲哚

    公开(公告)号：US5183894A

    公开(公告)日：1993-02-02

    申请号：US724232

    申请日：1991-07-01

    申请人： William R. Schleigh ,  Thomas R. Welter

    发明人： William R. Schleigh ,  Thomas R. Welter

    IPC分类号： A01N43/38 ,  A01N43/40 ,  C07D209/42 ,  C07D401/04 ,  C07D405/04

    CPC分类号： C07D401/04 ,  A01N43/38 ,  A01N43/40 ,  C07D209/42 ,  C07D405/04

    摘要： The present invention relates to 2-substituted-1-hydroxyindoles of the following formula: ##STR1## wherein, R.sup.1 is an electron withdrawing group,R.sup.2 is an alkenyl having 2-10 carbon atoms, and N-substituted .alpha.-iminobenzyl group wherein the substituents are selected from the group consisting of phenyl, anilino and dimethylamino, an unsubstituted aromatic group, and an aromatic group having meta or para substituents which are nitro, trifluoromethyl, fluoro, formyl, hydroxyiminomethyl and carbamoyl,R.sup.3 is a halogen atom, andn is 0, 1, or 2,provided that when R.sup.2 is either phenyl or nitro substituted phenyl and n is 0, then R.sup.1 is not cyano.