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    Silver halide photographic element, photographic coating composition and process to prepare an aqueous dispersion of a hydrophobic compound
    1.
    发明授权
    Silver halide photographic element, photographic coating composition and process to prepare an aqueous dispersion of a hydrophobic compound 失效
    卤化银照相元件，照相涂料组合物和制备疏水化合物的水分散体的方法

    公开(公告)号：US4990435A

    公开(公告)日：1991-02-05

    申请号：US940903

    申请日：1986-12-10

    申请人： Angelo Vallarino ,  Mauro Besio ,  Lorenzo Vittore

    发明人： Angelo Vallarino ,  Mauro Besio ,  Lorenzo Vittore

    IPC分类号： G03C1/04 ,  G03C1/053 ,  G03C1/06 ,  G03C7/388

    CPC分类号： G03C7/3882

    摘要： A polymeric latex to load photographically useful compounds into photographic elements comprises, as a dispersed phase, fine particles of a hydrophobic polymer which, for at least 70% of its weight, comprises:(a) repeating units derived from an ethylenic monomer containing a sulfonic or sulfonate group which monomer is capable of forming hydrophilic homopolymers, said units comprising 0.5 to 1.5% by weight of said hydrophobic polymer,(b) repeating units derived from an N-3-oxo-alkyl-substituted acrylamide, said units comprising from 5 to 25% by weight of said hydrophobic polymer, and(c) repeating units derived from acrylic acid ester monomers having a TG lower than 0.degree. C., said units comprising at least 43.5% by weight of said hydrophobic polymer,the remaining polymer weight percentage, from zero to 30%, being formed by repeating units derived from inert monomers and/or cross-linking monomers.Such polymeric latex can be loaded with hydrophobic compounds to obtain stable coating compositions which are suitable for a uniform dispersion in a hydrophilic layer of a photographic material.

    摘要翻译： 将摄影有用的化合物加载到照相元件中的聚合物胶乳包含作为分散相的疏水性聚合物的细颗粒，其至少70％的重量包含：（a）衍生自含有磺酸的烯属单体的重复单元 或单体能够形成亲水均聚物的磺酸盐基团，所述单元包含0.5至1.5重量％的所述疏水性聚合物，（b）衍生自N-3-氧代 - 烷基取代的丙烯酰胺的重复单元，所述单元包含5 至25重量％的所述疏水性聚合物，和（c）衍生自TG低于0℃的丙烯酸酯单体的重复单元，所述单元包含至少43.5重量％的所述疏水性聚合物，剩余的聚合物重量 百分数，从零到30％，由衍生自惰性单体和/或交联单体的重复单元形成。 这样的聚合胶乳可以加载疏水性化合物，以获得适合在照相材料的亲水层中均匀分散的稳定的涂料组合物。

    Antistatic photographic base and light-sensitive element
    4.
    发明授权
    Antistatic photographic base and light-sensitive element 失效
    防静电摄影底座和感光元件

    公开(公告)号：US4914018A

    公开(公告)日：1990-04-03

    申请号：US278358

    申请日：1988-12-01

    申请人： Mauro Besio ,  Alberto Valsecchi

    发明人： Mauro Besio ,  Alberto Valsecchi

    IPC分类号： G03C1/89

    CPC分类号： G03C1/89 ,  Y10S430/162 ,  Y10T428/31884 ,  Y10T428/31986

    摘要： An improved antistatic base comprises a polymeric support film having coated thereon in sequence a first antistatic layer comprising a quaternary polyelectrolyte compound and a polymeric hydrophobic binder and a second protective layer comprising a polymeric hydrophobic binder, wherein said quaternary polyelectrolyte compound is a homopolymer or a copolymer of a diallyldialkylammonium salt compound.The antistatic base is particularly useful as a support for light-sensitive silver halide photographic elements.

    Hardened silver halide photographic elements
    5.
    发明授权
    Hardened silver halide photographic elements 失效
    硬化卤化银照相元件

    公开(公告)号：US5482827A

    公开(公告)日：1996-01-09

    申请号：US367580

    申请日：1995-01-03

    申请人： Mauro Besio ,  Giuseppe Rocca

    发明人： Mauro Besio ,  Giuseppe Rocca

    IPC分类号： G03C7/26 ,  G03C1/035 ,  G03C1/09 ,  G03C1/30 ,  G03C1/34

    CPC分类号： G03C1/30 ,  G03C1/09

    摘要： Light-sensitive silver halide photographic elements comprising a support bearing at least one gelatin-containing silver halide emulsion layer, wherein the silver halide emulsion is chemically sensitized with sulfur and gold in the presence of a sulfinic acid compound and the gelatin is hardened with a carbamoylpyridinium salt compound.

    摘要翻译： 感光卤化银照相元件包括含至少一种含有明胶的卤化银乳剂层的载体，其中卤化银乳剂在亚磺酸化合物的存在下用硫和金化学增感，明胶用氨基甲酰基吡啶 盐化合物。

    Silver bromoiodide core-shell grain emulsion
    6.
    发明授权
    Silver bromoiodide core-shell grain emulsion 失效
    银碘碘化物核 - 壳颗粒乳剂

    公开(公告)号：US5576169A

    公开(公告)日：1996-11-19

    申请号：US399611

    申请日：1995-03-07

    申请人： Mario Mariotti ,  Bruno Barletta ,  Mauro Besio

    发明人： Mario Mariotti ,  Bruno Barletta ,  Mauro Besio

    IPC分类号： G03C7/00 ,  G03C1/005 ,  G03C1/015 ,  G03C1/035 ,  G03C1/16 ,  G03C1/18 ,  G03C7/26 ,  G03C7/30

    CPC分类号： G03C1/035 ,  G03C1/0051 ,  G03C1/005 ,  G03C1/16 ,  G03C1/18 ,  G03C7/3022

    摘要： A core-shell silver bromoiodide emulsion having an inner core portion consisting essentially of silver bromoiodide and an outer shell portion consisting essentially of silver bromoiodide, wherein said inner core portion has a silver iodide content ranging from 30 to 50 mol %, said outer shell portion has a silver iodide content ranging from 1 to 10 mol %, and the average total silver iodide content ranges from 5 to 12 mol %, and wherein the ratio between the area of the X-ray diffraction peak corresponding to said outer shell portion and the area of the X-ray diffraction peak corresponding to said inner core portion is higher than 9:1.

    摘要翻译： 一种核 - 壳银溴碘化银乳液，其具有基本上由溴碘化银组成的内核部分和基本上由溴碘化银组成的外壳部分，其中所述内芯部分具有30-50mol％的碘化银含量，所述外壳部分 碘化银的含量为1〜10摩尔％，平均总碘化银含量为5〜12摩尔％，其中与所述外壳部分相对应的X射线衍射峰面积与 对应于所述内核部分的X射线衍射峰的面积高于9:1。

    Photographic dispersions for yellow filter dyes
    7.
    发明授权
    Photographic dispersions for yellow filter dyes 失效
    黄色滤光染料的照相分散体

    公开(公告)号：US06670111B2

    公开(公告)日：2003-12-30

    申请号：US10236622

    申请日：2002-09-05

    申请人： Corrado Balestra ,  Mauro Besio ,  Emilio Prosperi

    发明人： Corrado Balestra ,  Mauro Besio ,  Emilio Prosperi

    IPC分类号： G03C140

    CPC分类号： C09B67/0084 ,  G03C1/005 ,  G03C1/832 ,  G03C2200/22 ,  G03C2200/25

    摘要： The present invention refers to a process for preparing a dispersion which comprises codispersing in an aqueous medium a sucrose derivative represented by the following general formula (1), wherein substituents X1 to X8, being the same or different, are represented by a hydrogen atom, an alkyl group or an acyl group, with the proviso that at least four of the X1 to X8 substituents are different from hydrogen and that the total sum of the carbon atoms of X1 to X8 substituents is at least sixteen; and a photographic compound represented by the following general formula (2), wherein R and R1 each independently represent a hydrogen atom, an alkyl group, an alkylene group, a heterocyclic group or an aryl group; R2, R3 and R4 each independently represent a hydrogen atom, an alkyl group, an aryl group and R3 and R4 may be combined to form a 6-membered ring. The present invention also refers to a photographic dispersion comprising a sucrose derivative represented by previous general formula (1) and a photographic compound represented by previous general formula (2) dispersed in an aqueous medium and to a photographic element comprising a film support base having coated on one side thereof at least one hydrophilic colloid emulsion layer comprising said photographic dispersion. The process of the present invention allows photographic dispersions to display a narrow drop size distribution curve even when stored for a long period of time (30 days) in cold room.

    摘要翻译： 本发明涉及一种制备分散体的方法，其包括在水性介质中共混以下述通式（1）表示的蔗糖衍生物，其中相同或不同的取代基X1至X8由氢原子表示， 烷基或酰基，条件是至少四个X 1至X 8取代基不同于氢，并且X 1至X 8取代基的碳原子总和至少为16; 和由以下通式（2）表示的照相化合物，其中R和R 1各自独立地表示氢原子，烷基，亚烷基，杂环基或芳基; R2，R3和R4各自独立地表示氢原子，烷基，芳基和R3和R4可以组合形成6-元环。本发明还涉及包含由前述 分散在水性介质中的由通式（1）表示的照相化合物和由前述通式（2）表示的照相化合物和包含在其一面上涂覆有至少一个包含所述照相分散体的亲水胶体乳剂层的薄膜载体的照相元件。 本发明的方法即使在冷室中长时间（30天）储存时，照相分散体也能显示出窄的液滴尺寸分布曲线。