PHOTOCHROMIC POLYMER MEMBRANE.
    51.
    发明公开
    PHOTOCHROMIC POLYMER MEMBRANE. 失效
    光电聚合物

    公开(公告)号:EP0527847A4

    公开(公告)日:1992-12-29

    申请号:EP91909034

    申请日:1991-04-17

    申请人: WASSERMAN NELSON

    IPC分类号: G02B1/04 G02B5/23 G03C1/005

    CPC分类号: G02B5/23 G02B1/04 G03C1/005

    摘要: A photochromic material adapted for coating light transmissive materials. The photochromic material contains photosensitive silver halide crystals having dimensions in the range of approximately 50 Angstroms to 800 Angstroms. The silver halide crystals are surface doped with copper ions and another sensitizer selected from mild reducing agents, thioethers, or sulfur-bearing ions and are treated with an agent to accelerate the forward reaction and control the reverse reaction. The accelerants are ions selected from the group consisting of cobalt, chromium, manganese, magnesium, and rare earth metals such as cerium, samarium and europium. The agent for controlling the reverse reaction is one that confers electrical conductivity on the material and while to this end glycerol containing a high concentration of metal ions, methane sulfonic acid and benzyltrimethyl ammonium chloride are useful, the preferred agent is phosphoric acid. The crystals are dispersed in one or more protective polymers that do not irreversibly bind halogen.

    PREPARATION OF LOW VISCOSITY SMALL-PARTICLE PHOTOGRAPHIC DISPERSIONS IN GELATIN
    52.
    发明公开
    PREPARATION OF LOW VISCOSITY SMALL-PARTICLE PHOTOGRAPHIC DISPERSIONS IN GELATIN 失效
    明胶中低PHOTOGRAPHIC小粒子分散体的制备。

    公开(公告)号:EP0477271A1

    公开(公告)日:1992-04-01

    申请号:EP90909911.0

    申请日:1990-06-11

    IPC分类号: B01F17 B01J13 G03C1 G03C7

    摘要: L'invention est mise en oeuvre par l'utilisation d'un tensio-actif destiné à des dispersions photographiques de particules très fines. Trois types desdits tensio-actifs sont identifiés comme suit: tensio-actif type A comprenant une terminaison hydrophobe comportant 6 à 22 atomes de carbone dotée d'une ou de plusieurs chaînes hydrophyles fixées comprenant au moins 8 groupes d'oxyéthylène et/ou glycédyle éther terminés ou non par une charge négative telle qu'un groupe de sulfate; tensio-actifs type B olygomères en blocs comprenant des blocs de polyoxypropylène hydrophobes (A) et des blocs de polyoxyéthylène hydrophyle (B) liés comme suit: ABA, BAB, AB,(AB)n=G=(BA), ou (BA)n=G=(AB)n, G représentant une fraction organique de connexion et n étant compris entre 1 et 3; tensio-actifs de sucre type C, comprenant 1 à 3 terminaisons hydrophobes comportant 6 à 22 atomes de carbone, dotée d'une ou de plusieurs chaînes hydrophyles fixées de mono ou d'olygosaccharide, terminées ou non par un groupe chargé négativement tel qu'un groupe de sulfate. Le critère chimique des colloïdes préférés de la matière de dispersion photographique de l'invention est qu'ils soient composés de particules dont les diamètres sont compris entre environ 5 nm et 100 nm, et qui ont été préparées par précipitation à partir d'une solution à l'aide d'un solvant et/ou en modifiant le pH.

    Silver halide photographic light-sensitive material capable of super-rapid processing
    57.
    发明公开
    Silver halide photographic light-sensitive material capable of super-rapid processing 失效
    超快速加工的银色摄影感光材料

    公开(公告)号:EP0267019A3

    公开(公告)日:1989-07-19

    申请号:EP87309756.2

    申请日:1987-11-04

    IPC分类号: G03C1/46 G03C1/38 G03C1/74

    摘要: A silver halide photographic light-sensitive material comprising a support having the first photographic structual layer comprising one or more layers on a side of the support and the second photographic structual layer comprising one or more layers on the other side of the support, in which at least one of the photographic structual layers comprises a silver halide light-sensitive emulsion layer, and the total amount of gelatin contained in the photographic structual layer comprising the silver halide emulsion layer is within the range of from 2.00 g/m² to 3.50 g/m². The uppermost layer of the photographic structual layer comprising the silver halide emulsion is formed by coating of a solution having a surface tention of from 15 to 26 dyn/cm, and the second photographic stuructual layer is coated and gelled between coating and drying of the first photographic structual layer. The photographic material is improved in the adaptability for super-rapid processing with the total duration of 20 to 60 sec. and the unti-scratch property.

    Process for producing silver halide photographic paper
    58.
    发明公开
    Process for producing silver halide photographic paper 失效
    Verfahren zur Erzeugung von Silberhalogenid enthaltendem,photoischem Papier。

    公开(公告)号:EP0294217A1

    公开(公告)日:1988-12-07

    申请号:EP88305084.1

    申请日:1988-06-03

    IPC分类号: G03C1/42 G03C1/815

    摘要: A process for producing a silver halide photographic paper that has on a support at least one photographic constituent layer incorporating a silver halide developing agent and at least one photographic constituent layer containing both a polymer latex and an emulsified dispersion of an oil-­soluble fluorescent brightener dissolved in a high-boiling point organic solvent wherein said emulsified dispersion is preliminarily mixed with said polymer latex, the resulting mixture then being incorporated in a selected photographic constituent layer.

    摘要翻译: 一种制备卤化银照相纸的方法,该方法在支持体上具有至少一个包含卤化银显影剂的照相构成层和至少含有溶解有油溶性荧光增白剂的聚合物胶乳和乳化分散体的照相构成层 在其中所述乳化分散体与所述聚合物胶乳预先混合的高沸点有机溶剂中,然后将所得混合物并入选定的照相组成层。

    Silver halide color photographic photosensitive materials
    59.
    发明公开
    Silver halide color photographic photosensitive materials 失效
    远光照相机(Silbhalogenidmaterialien)。

    公开(公告)号:EP0280238A2

    公开(公告)日:1988-08-31

    申请号:EP88102576.1

    申请日:1988-02-22

    IPC分类号: G03C7/26 G03C7/32

    摘要: A silver halide color photosensitive material comprising, on a support, at least one silver halide photographic emulsion layer comprising an emulsified dispersion of fine lipophilic particles comprising at least one type of oil-soluble coupler which is non-diffusible and which forms a dye by coupling with the oxidized form of a primary aromatic amine color developing agent and at least one type of high boiling point organic solvent, said emulsified dispersion of fine lipophilic particles comprises a dispersion obtained by emulsifying and dispersing a mixed solution which comprises at least one type of coupler, and at least one type of high boiling point organic solvent as mentioned above, and at least one type of homopolymer or copolymer which is water-insoluble and soluble in organic solvent, and which comprises at least one type of repeating unit which does not have acid groups on the main chain or on a side chain, and said silver halide emulsion comprises a monodispersed silver chloride, silver chlorobromide or silver bromide emulsion, containing essentially no silver iodide, and of which the (100) plane has, in the main, been enclosed.

    摘要翻译: 一种卤化银色感光材料,其在载体上包含至少一种卤化银照相乳剂层,其包含细微亲油性颗粒的乳化分散体,其包含至少一种不可扩散的油溶性成色剂,并且通过偶联形成染料 与主芳香族胺显色剂的氧化形式和至少一种类型的高沸点有机溶剂,所述亲脂性亲油性微粒的乳化分散体包括通过将包含至少一种类型的成色剂的混合溶液乳化和分散而获得的分散体 和至少一种类型的上述高沸点有机溶剂,以及至少一种不溶于水和可溶于有机溶剂的均聚物或共聚物,并且其包含至少一种不具有的重复单元 主链或侧链上的酸基,并且所述卤化银乳剂包含单分散的银ch 主要包含(100)平面的氯化银或溴化银乳剂,其基本上不含碘化银。