利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

45 条记录 (耗时 0.022 秒)

    Dry analytical element and method for the detection of an aminopeptidase or transpeptidase
    41.
    发明授权
    Dry analytical element and method for the detection of an aminopeptidase or transpeptidase 失效
    用于检测氨基肽酶或转肽酶的干燥分析元件和方法

    公开(公告)号：US5344753A

    公开(公告)日：1994-09-06

    申请号：US891150

    申请日：1992-06-01

    申请人： John C. Mauck ,  Harold C. Warren, III ,  John W. Harder

    发明人： John C. Mauck ,  Harold C. Warren, III ,  John W. Harder

    IPC分类号： C12Q1/37 ,  C12Q1/48 ,  G01N33/52 ,  C12Q1/00 ,  G01N21/00

    CPC分类号： C12Q1/37 ,  G01N33/523 ,  G01N33/526 ,  Y10S435/805

    摘要： A dry analytical element has been prepared for the assay of leucine aminopeptidase at a pH of 6.5 to 11. The element zone contains an aromatic substrate for the enzyme. This substrate provides an aromatic reactant which has a primary amino group on the aromatic ring in the ortho or para position to an electron donor group. The aromatic reactant is oxidized with an oxidizing compound (such as an oxidase) and the oxidized compound reacts with a ballasted color-forming coupler to provide a dye.

    摘要翻译： 已经制备了干燥的分析元件，用于在pH为6.5至11的条件下测定亮氨酸氨基肽酶。元件区含有酶的芳族底物。 该底物提供芳族反应物，其在芳环上具有与电子给体基团相邻或对位的伯氨基。 芳族反应物用氧化性化合物（例如氧化酶）氧化，氧化的化合物与压色成色剂反应以提供染料。

    Photographic material and process comprising wash-out naphtholic coupler
    43.
    发明授权
    Photographic material and process comprising wash-out naphtholic coupler 失效
    摄影材料和方法，包括洗出萘酚偶合剂

    公开(公告)号：US5151343A

    公开(公告)日：1992-09-29

    申请号：US748499

    申请日：1991-08-22

    申请人： William J. Begley ,  Teh-hsuan Chen ,  Hans G. Ling ,  John W. Harder ,  Arlyce T. Bowne

    发明人： William J. Begley ,  Teh-hsuan Chen ,  Hans G. Ling ,  John W. Harder ,  Arlyce T. Bowne

    IPC分类号： G03C7/305

    CPC分类号： G03C7/30523

    摘要： A photographic naphtholic coupler comprising a ballast free naphtholic coupler moiety containing a --CONH.sub.2 group in the 2- position and a ballasted coupling-off group in the 4- position enables good wash out of dye formed upon oxidative coupling from a photographic material during processing of such a photographic material. Such a naphtholic coupler is useful in photographic silver halide materials and processes.

    摘要翻译： 包含在2-位上含有-CON​​H 2基的无镇流的萘环成色剂部分的照相萘酚成色剂部分和位置在4-位的压载偶合剂组合能够在处理过程中从照相材料进行氧化偶联时形成的染料的良好洗脱 这样的照相材料。 这种萘鎓偶联剂可用于照相卤化银材料和方法。

    Process for retouching dye images
    44.
    发明授权
    Process for retouching dye images 失效
    修饰染料图像的工艺

    公开(公告)号：US4990430A

    公开(公告)日：1991-02-05

    申请号：US452907

    申请日：1989-12-19

    申请人： John W. Harder ,  Paul A. Burns

    发明人： John W. Harder ,  Paul A. Burns

    IPC分类号： G03C7/18 ,  G03C7/38 ,  G03C11/04

    CPC分类号： G03C7/3835 ,  G03C11/04

    摘要： A method of retouching a dye image comprises selective removal with an aqueous acidic organic solvent solution, as described in the application, of a portion of a dye image from an exposed and processed photographic silver halide element comprising a support bearing a dye image from a dye-forming coupler and a primary amine photographic color developing agent, wherein the dye-forming coupler: (a) contains no ionizable group that is retained as part of a dye formed upon oxidative coupling, (b) has a structure such that the Log P of the coupler is greater than 4 and is derived from a four-equivalent coupler that has a Log P less than 8, and (c) has a coupling reactivity that enables formation of maximum image density of at least 0.6. The method comprises the step of contacting the dye image with an aqueous acidic organic solvent solution, as described in the application, for a time and at a temperature sufficient to selectively dissolve and remove a portion of the dye image from the photographic element. A new photographic element designed for such retouching comprises new pyrazolotriazole couplers as described in the application.