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8 条记录 (耗时 0.017 秒)

    Photographic contrast promoting agents
    4.
    发明授权
    Photographic contrast promoting agents 失效
    摄影对比促进剂

    公开(公告)号：US5451486A

    公开(公告)日：1995-09-19

    申请号：US343820

    申请日：1994-11-22

    申请人： John F. Pilot ,  Syeda Husain ,  Penny M. Mullen ,  Burton H. Waxman

    发明人： John F. Pilot ,  Syeda Husain ,  Penny M. Mullen ,  Burton H. Waxman

    IPC分类号： G03C1/06

    CPC分类号： G03C1/061

    摘要： Photographic film nucleating agents comprising aryl sulfonamidophenyl hydrazides containing alkene, alkadienyl, alkapolyenyl or cycloalkenyl substituted pyridinium functionality; these nucleators produce better dot quality and superior contrast characteristics in image-wise exposed film elements and wider compatibility with standard rapid access developers and obviate the need to include boosters in the film or in the developer.

    摘要翻译： 包含含有烯烃，链二烯基，烷基多烯基或环烯基取代的吡啶鎓官能团的芳基磺酰胺基苯肼的摄影膜成核剂; 这些成核剂在成像曝光的薄膜元件中产生更好的点质量和优异的对比度特征，并且与标准快速接入开发者具有更宽的兼容性，并且不需要在薄膜或显影剂中包括增强剂。

    High contrast dot enhancing compositions and photographic products and methods for their use
    5.
    发明授权
    High contrast dot enhancing compositions and photographic products and methods for their use 失效
    高对比度点增强组合物及摄影产品及其使用方法

    公开(公告)号：US4882261A

    公开(公告)日：1989-11-21

    申请号：US211980

    申请日：1988-06-27

    申请人： Yasuhiko Kojima ,  John Pilot ,  Burton H. Waxman

    发明人： Yasuhiko Kojima ,  John Pilot ,  Burton H. Waxman

    IPC分类号： G03C1/06 ,  G03C5/305

    CPC分类号： G03C5/305 ,  G03C1/067

    摘要： Novel dot enhancing compositions are disclosed for use in high contrast negative-working image-forming systems. The compositions include compounds of the general formula: ##STR1## wherein R.sub.1 is an aromatic group, A is a substituted or unsubstituted aromatic nucleus, and the two carboxyl groups specifically depicted in general formula (I) are each bound to a different carbon atom of said aromatic nucleus.The dot enhancing compositions may be incorporated into a silver halide photographic emulsion or into another hydrophilic colloid layer of a photographic material, or into a developing solution or, alternatively, into both. The dot enhancers of the invention improve density and contrast of images formed, as well as providing a harder, smoother, better formed dot for use in letter press and offset lithography.

    摘要翻译： 公开了用于高对比度负型图像形成系统的新型点增强组合物。 组合物包括以下通式的化合物：其中R1是芳族基团，A是取代或未取代的芳香核，通式（I）中具体描述的两个羧基各自与不同的 所述芳香核的碳原子。 点增强组合物可以掺入卤化银照相乳剂或照相材料的另一亲水胶体层中，或并入显影溶液中，或者并入二者。 本发明的点增强剂提高形成的图像的密度和对比度，并且提供用于字母压印和胶版印刷的更硬，更平滑更好的形成点。

    Low molecular weight hair spray
    6.
    发明授权
    Low molecular weight hair spray 失效
    低分子量发胶

    公开(公告)号：US4567035A

    公开(公告)日：1986-01-28

    申请号：US525357

    申请日：1983-08-22

    申请人： Burton H. Waxman ,  I. Sioun Lin

    发明人： Burton H. Waxman ,  I. Sioun Lin

    IPC分类号： C08F22/00 ,  A61K8/04 ,  A61K8/81 ,  A61Q5/06 ,  C08F22/10 ,  C08F218/00 ,  C08F218/02 ,  C08F218/04 ,  C08F222/10 ,  A61K7/11 ,  A61K31/74

    CPC分类号： A61Q5/06 ,  A61K8/046 ,  A61K8/8164 ,  Y10S424/01

    摘要： A low molecular weight hair spray resin containing a vinyl monomer having a ##STR1## electron withdrawing group and consisting essentially of alternating units of vinyl ester and an alkyl half ester maleate derived from an alternating vinyl ester/maleic anhydride copolymer. The resins of this invention are defined by the structure: ##STR2## wherein R and R.sub.1 are each independently alkyl having from 1 to 6 carbon atoms and n has a value between about 40 and 250, preferably 60 to 220.

    摘要翻译： 含有具有吸电子基团的乙烯基单体并且基本上由乙烯基酯和由交替的乙烯基酯/马来酸酐共聚物衍生的马来酸烷基酯的交替单元组成的低分子量发胶树脂。 本发明的树脂由以下结构定义：其中R和R 1各自独立地为具有1至6个碳原子的烷基，n具有约40至250，优选60至220的值。

    Process for producing negative and positive original images on a bilevel printing plate utilizing non-silver halide layer and silver halide overlayer
    8.
    发明授权
    Process for producing negative and positive original images on a bilevel printing plate utilizing non-silver halide layer and silver halide overlayer 失效
    在使用非卤化银层和卤化银覆盖层的双层印版上产生负和正的原始图像的方法

    公开(公告)号：US5330875A

    公开(公告)日：1994-07-19

    申请号：US57592

    申请日：1993-05-05

    申请人： Michael W. Adelman ,  Robert W. Hallman ,  Suck-Ju Hong ,  Ken-Ichi Shimazu ,  Burton H. Waxman

    发明人： Michael W. Adelman ,  Robert W. Hallman ,  Suck-Ju Hong ,  Ken-Ichi Shimazu ,  Burton H. Waxman

    IPC分类号： G03F7/095 ,  G03F7/30

    CPC分类号： G03F7/0952

    摘要： A lithographic printing plate precursor and process for its utilization have been discovered through which negative and positive original images can be printably reproduced on the plate precursor in substantially fewer development steps. The precursor plate is exposed sequentially to either the negative or positive original with the resultant image subsequently developable in a single process or step. The process is achieved by using a precursor plate having two coatings of significantly different photographic sensitivity to light, i.e., speed as characterized by "camera speed" or "contact speed" and imagewise exposing the originals in sequence to alternative speeds. The contact speed coating may be negative-working or positive working while the camera speed coating is negative-working. The camera speed coating is developed followed by exposure of the contact speed coating. Images produced at camera speed are removed and non-image bearing portions of the contact speed coating are removed. The remaining image areas corresponding to the negative and positive originals are treated to provide positive printable images.

    摘要翻译： 已经发现了平版印刷版前体及其应用的方法，通过该平版印刷版前体及其正在使用的原始图像能够以显着更少的显影步骤在印版前体上可印刷再现。 前体板依次暴露于负片或正版原件，随后所得图像可在单一工艺或步骤中显影。 该方法通过使用具有对光的感光敏感度显着不同的两个涂层的前体板来实现，即，以“相机速度”或“接触速度”为特征的速度，并将原稿成像地曝光到替代速度。 接触速度涂层可能是负作用或正向工作，而相机速度涂层是负作用的。 开发相机速度涂层，然后曝光接触速度涂层。 去除以相机速度产生的图像，并且去除接触速度涂层的非图像承载部分。 处理与正和负的原稿对应的剩余图像区域以提供可打印的图像。