利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

895 条记录 (耗时 0.024 秒)

    Novel yellow couplers for photographic elements and processes
    72.
    发明公开
    Novel yellow couplers for photographic elements and processes 失效
    Neue Gelbkupplerfürfotografische Materialien und Verfahren。

    公开(公告)号：EP0498381A1

    公开(公告)日：1992-08-12

    申请号：EP92101865.1

    申请日：1992-02-05

    申请人： EASTMAN KODAK COMPANY

    发明人： Lau, Philip T.S., c/o EASTMAN KODAK COMPANY ,  Thompson, Danny Ray, c/o EASTMAN KODAK COMPANY ,  Green, Frederik R., c/o EASTMAN KODAK COMPANY

    IPC分类号： G03C7/36

    CPC分类号： C07D319/06 ,  G03C7/30535 ,  G03C7/36

    摘要： Novel yellow image dye-forming couplers are disclosed. The couplers comprise an active open-chain keto-methylene group, an anilide group attached to the keto-methylene group, and a cyclic ether group attached to the keto-methylene group. The cyclic ether group comprises two oxygen atoms. Either the anilide group or the cyclic ether may carry a ballast group capable of immobilizing the coupler in the layer in which it is contained. Color photographic elements incorporating the novel couplers are also disclosed.

    摘要翻译： 公开了新型的黄色成像染料成色剂。 成色剂包括活性开链酮 - 亚甲基，连接到酮 - 亚甲基的酰苯胺基和连接到酮 - 亚甲基的环醚基。 环醚基团包含两个氧原子。 酰苯胺基或环醚可以携带能够将耦合剂固定在其所含的层中的压载体。 还公开了并入新颖耦合器的彩色照相元件。

    Optical article for reflection modulation
    73.
    发明公开
    Optical article for reflection modulation 失效
    用于反射调制的光学文章

    公开(公告)号：EP0459574A3

    公开(公告)日：1992-07-15

    申请号：EP91201239.0

    申请日：1991-05-24

    申请人： EASTMAN KODAK COMPANY ,  KODAK LIMITED

    发明人： Scozzafava, Michael, c/o EASTMAN KODAK COMPANY ,  Schildkraut, Jay Stuart, c/o EASTMAN KODAK COMPANY

    IPC分类号： G02F1/19

    CPC分类号： G02F1/195

    摘要： An optical article capable of modulating the reflection of polarized monochromatic electromagnetic radiation is disclosed comprised of a reflective metal layer, means acting as a support for directing the electromagnetic radiation to the reflective metal layer, an electrooptic medium that exhibits a refractive index which is a function of an applied electrical potential, and a counter electrode. At least one of the reflective metal layer and the counter electrode taking the form of laterally spaced segments. The reflective metal layer has a thickness of less than 0.5 µm, and a dielectric layer having a thickness in the range of from 0.1 to 10 times the wavelength of the electromagnetic radiation and comprised of at least one metal oxide, metal fluoride, or low molecular weight aromatic compound is coated on the support. The electrooptic medium is a polymeric layer coated on the reflective metal layer exhibiting a second order polarization susceptibility greater than 10⁻⁹ electrostatic units and comprised of polar aligned molecular dipoles having an electron donor moiety linked through a conjugated π bonding system to an electron acceptor moiety. The polymeric layer exhibits a refractive index which differs from that of the dielectric layer by less than 20 percent in the absence of an applied electrical potential.

    Radiation-sensitive composition containing a vinyl pyrrolidone polymer and use thereof in lithographic printing plates
    75.
    发明公开
    Radiation-sensitive composition containing a vinyl pyrrolidone polymer and use thereof in lithographic printing plates 失效
    含乙烯基吡咯烷酮聚合物的放射线敏感性组合物，和在胶印印版其用途。

    公开(公告)号：EP0472228A1

    公开(公告)日：1992-02-26

    申请号：EP91201806.6

    申请日：1991-07-11

    申请人： EASTMAN KODAK COMPANY

    发明人： West, Paul Richard, c/o Eastman Kodak Company ,  Mitchell, James Edward, c/o Eastman Kodak Company ,  Miller, Gary Roger, c/o Eastman Kodak Company ,  Josephson, Paul Richard, c/o Eastman Kodak Compa ,  Ryan, Raymond William, c/o Eastman Kodak Compa

    IPC分类号： G03F7/038 ,  C08F299/04

    CPC分类号： G03F7/0384

    摘要： Radiation-sensitive compositions which are especially useful in the production of negative-working lithographic printing plates comprise a photocrosslinkable polymer containing the photosensitive group
    as an integral part of the polymer backbone and, in an amount sufficient to improve the properties of the composition, a polymer of vinyl pyrrolidone. The polymer of vinyl pyrrolidone improves the properties of the radiation-sensitive composition in regard to such factors as shelf life, image contrast, and developability and thereby provides a superior lithographic printing plate. In a preferred embodiment of the invention, the radiation-sensitive composition also contains a copolyester of an unsaturated dicarboxylic acid and an oxyalkylene ether of an alkylidene diphenol. The aforesaid copolyester provides the further advantage of greatly enhanced ink receptivity.

    摘要翻译： 辐射敏感组合物，其是爱在生产负性工作平版印刷板是特别有用的，在量足以改善所述组合物的性质包括含有感光性基团相片可交联的聚合物作为在聚合物主链的一个组成部分，并且在 ，乙烯基吡咯烷酮的聚合物。 乙烯基吡咯烷酮的聚合物改进辐射敏感组合物的性质对于寻求因素保质期，图像对比度和显影性，从而提供了优越的平版印刷版。 在本发明的一个优选实施方案中，辐射敏感性组合物因此包含在亚烷基二酚的氧化烯醚的不饱和二羧酸和的共聚酯。 上述共聚酯提供大大提高墨接受的进一步的优点。

    METHOD OF PHOTOGRAPHIC PROCESSING
    76.
    发明公开
    METHOD OF PHOTOGRAPHIC PROCESSING 失效
    方法摄影过程。

    公开(公告)号：EP0470083A1

    公开(公告)日：1992-02-12

    申请号：EP90905501.0

    申请日：1990-04-13

    申请人： KODAK LIMITED ,  EASTMAN KODAK COMPANY

    发明人： FYSON, John, Richard

    IPC分类号： G03C5 ,  G03C7

    CPC分类号： G03C7/42 ,  G03C5/38

    摘要： Le procédé décrit, qui sert à retirer le chlorure d'argent d'un matériau photographique à base d'halogénure d'argent pendant l'étape de reproduction photographique, utilise un traitement au moyen d'une solution aqueuse contenant un sulfite de métal alcalin comme unique solvant de l'halogénure d'argent.