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49 条记录 (耗时 0.134 秒)

    Continuous manufacture of gelled microprecipitated dispersion melts
    2.
    发明授权
    Continuous manufacture of gelled microprecipitated dispersion melts 失效
    连续制造凝胶微沉淀分散体熔体

    公开(公告)号：US5385812A

    公开(公告)日：1995-01-31

    申请号：US996949

    申请日：1992-12-28

    申请人： Pranab Bagchi ,  James T. Beck ,  Vincent J. Flow, III

    发明人： Pranab Bagchi ,  James T. Beck ,  Vincent J. Flow, III

    IPC分类号： C09D5/00 ,  G03C1/00 ,  G03C1/005 ,  G03C1/015 ,  G03C7/388 ,  G03C5/26

    CPC分类号： G03C1/005 ,  G03C7/388 ,  G03C2001/7481 ,  G03C2200/11 ,  G03C2200/20 ,  Y10S430/136

    摘要： The invention discloses a continuous method of manufacture of gelled dispersion melts of "small-particle" microprecipitated photographic agents. The continuous melt manufacturing process of this invention provides dispersion melts that are invariant in agent concentration, melt viscosity, and turbidity as a function of the run time and are also very reproducible and robust in repetitive preparations. Many photographic melts of this invention exhibit high photographic activity and light stability of the agents when exposed to light.

    摘要翻译： 本发明公开了一种制造“小粒子”微沉淀照相剂凝胶分散体熔体的连续方法。 本发明的连续熔融制造方法提供了作为运行时间的函数的试剂浓度，熔体粘度和浊度不变的分散体熔体，并且在重复制备中也是非常可重现的和稳定的。 本发明的许多照相熔融物在暴露于光下时表现出高的摄影活性和光稳定性。

    Pressure sensitivity relief for photographic products
    6.
    发明授权
    Pressure sensitivity relief for photographic products 失效
    摄影产品的压力敏感度

    公开(公告)号：US5393650A

    公开(公告)日：1995-02-28

    申请号：US265997

    申请日：1994-06-27

    申请人： Pranab Bagchi ,  Melvin M. Kestner

    发明人： Pranab Bagchi ,  Melvin M. Kestner

    IPC分类号： G03C1/04 ,  G03C1/043 ,  G03C1/38 ,  G03C1/76 ,  G03C1/95

    CPC分类号： G03C1/95 ,  G03C1/38

    摘要： This invention describes the use of surfactants of the following types:Type A--Surfactant comprising 6 to 22 carbon atom hydrophobic tail with one or more attached hydrophilic chains comprising at least 8 oxyethylene and/or glycidyl ether groups that may or may not be terminated with a negative charge such as a sulfate group.Type B--Block oligomeric surfactants comprising hydrophobic polyoxypropylene blocks (A) and hydrophilic polyoxyethylene blocks (B) joined in the manner of A--B--A, B--A--B, A--B, (A--B.sub.n .tbd.G.tbd.(B--A).sub.n, or (B--A).sub.n .tbd.G(A--B).sub.n, where G is a connective organic moiety and n is between 1 and 3.Type C--Sugar surfactants, comprising between one to three 6 to 22 carbon atom hydrophobic tail with one or more attached hydrophilic mono or oligosaccharidic chains that may or may not be terminated by a negatively charged group such as a sulfate group.in combination with gelatin-grafted-polymer particles to obtain aggregation and defect free photographic multilayer coatings that are considerably low in pressure sensitivity.

    摘要翻译： 本发明描述了以下类型的表面活性剂的用途：A型表面活性剂，其包含6至22个碳原子的疏水尾部，其具有一个或多个附着的亲水链，其包含至少8个氧化乙烯和/或缩水甘油醚基团，其可以或可以不以 负电荷如硫酸根组。 包含以ABA，BAB，AB，（A-Bn 3BOND G 3BOND（BA）n或（BA）n 3BOND G）的方式连接的疏水性聚氧丙烯嵌段（A）和亲水性聚氧乙烯嵌段（B）的B型低聚表面活性剂 （AB）n，其中G是连接性有机部分，n在1和3之间。C型糖表面活性剂，包含1至3个6至22个碳原子的疏水尾部与一个或多个连接的亲水单糖或寡糖链， 或者可能不被带负电荷的基团如硫酸根基团终止，与明胶接枝聚合物颗粒组合以获得相当低的压敏度的聚集和无缺陷的照相多层涂层。

    Hard copy imaging system
    7.
    发明授权
    Hard copy imaging system 失效
    硬拷贝成像系统

    公开(公告)号：US5252425A

    公开(公告)日：1993-10-12

    申请号：US746544

    申请日：1991-08-19

    申请人： Pranab Bagchi

    发明人： Pranab Bagchi

    IPC分类号： B41M5/382 ,  B41M5/34 ,  G03F3/10 ,  G03F7/004 ,  G03F7/40 ,  G03C5/54 ,  G03C1/68

    CPC分类号： G03F3/10 ,  B41M5/345 ,  Y10S430/163

    摘要： This invention relates to a full-color hard copy imaging system and a process, where a multiply photosensitive donor sheet, comprising clear polymeric or an opaque paper base, coated sequentially with a first layer of patches of a cyan, a magenta, and a yellow dye, that are thermally diffusible, with a second layer also coated sequentially with patches of a red light sensitive, a green light sensitive or a blue light sensitive, negative or a positive working photoresist layer, in such a manner that each of the colored dye patches are in registry with their complementary color sensitive photoresist patches, is exposed with white light sequentially, three times in registry on the three primary light sensitive patches, through a multicolor image (a positive transparency or a photographic negative), to produce crosslinks, image wise, in the exposed areas in the case of the negative resist system, or to uncrosslink the resist structure image wise in the exposed areas for a positive working resist system. In the second step, the first color patch is laminated on to a receiver sheet that is composed of a clear plastic layer in which the chromogenic dyes are soluble, with or without a white reflective backing and the first color image is transferred to the receiver sheet by thermal evaporation. The image is formed due to the hindrance of diffusion of dye in the crosslinked regions of the resist layer in the donor sheet. In subsequent consecutive steps the two remaining color images are transferred, by similar thermal process in registry on to the receiver sheet, thereby forming a full-color image of the original image.

    摘要翻译： 本发明涉及一种全色硬拷贝成像系统和一种方法，其中包括透明聚合物或不透明纸基的多次感光供体片，其顺序地涂覆有青色，品红色和黄色的第一层贴片 染料，其具有热扩散性，第二层依次涂覆有红色光敏感，绿色光敏感或蓝色光敏感，负性或正性光致抗蚀剂层的贴片，使得每种着色染料 贴片与其互补的色彩敏感的光刻胶贴片注册，通过多色图像（正透明度或照相底片）依次曝光三次在三个主要光敏贴片上注册，以产生交联，图像 在阴性抗蚀剂体系的情况下的暴露区域中，或者在曝光区域中将抗蚀剂结构图像未交叉显影以进行正面工作 抗蚀系统 在第二步骤中，将第一色块层压到由可见发色染料的透明塑料层组成的接收片上，具有或不具有白色反射背衬，并将第一彩色图像转印到接收片 通过热蒸发。 由于染料在供体片中的抗蚀剂层的交联区域中扩散的阻碍而形成图像。 在随后的连续步骤中，通过类似的热处理将两个剩余的彩色图像转印到接收片上，从而形成原始图像的全色图像。

    Case-hardened gelatin-grafted polymer particles
    8.
    发明授权
    Case-hardened gelatin-grafted polymer particles 失效
    表面硬化的明胶接枝聚合物颗粒

    公开(公告)号：US5248558A

    公开(公告)日：1993-09-28

    申请号：US718489

    申请日：1991-06-20

    申请人： Pranab Bagchi ,  William L. Gardner

    发明人： Pranab Bagchi ,  William L. Gardner

    IPC分类号： G03C1/047 ,  G03C1/053 ,  G03C1/95

    CPC分类号： G03C1/95 ,  G03C1/047 ,  G03C1/053 ,  Y10T428/2989 ,  Y10T428/2991 ,  Y10T428/2998

    摘要： It has been shown by Photon Correlation Spectroscopy than when additional hardener is added to below saturation gel-grafted polymer particles, the gel layer shrinks due to hardening, as there is no free gel left in solution. In films, such case-hardened gelatin-grafted soft polymer particles can act as highly elastic stress absorbing fillers. This is because the dry case-hardened shell is expected to form a thin hard shell around the soft polymer particles. It is shown that gelatin-grafted soft polymer particles and case-hardened gelatin-grafted soft polymer particles, incorporated in the emulsion layers of pressure sensitive photographic products, produce coatings with highly reduced pressure sensitivity without any developability or delamination concerns. In this invention the case-hardened gelatin-grafted polymer particles are preferred over the simple gelatin-grafted material. The core polymer particle can have diameters anywhere between 10 to 10.sup.8 nm with a monolayer of gelatin shell that is chemically bonded to its surface and the gelatin shell is further cross-linked with each other to hydrated thicknesses of between 5 to 20 nm.

    摘要翻译： 通过光子相关光谱显示，当将额外的固化剂加入到饱和的凝胶接枝聚合物颗粒中时，凝胶层由于硬化而收缩，因为溶液中不存在游离凝胶。 在膜中，这种表面硬化的明胶接枝的软聚合物颗粒可以用作高弹性应力吸收填料。 这是因为干燥壳体硬化壳体预期在软聚合物颗粒周围形成薄的硬壳。 显示出掺入压敏照相产品的乳剂层中的明胶接枝的软聚合物颗粒和表面硬化的明胶接枝的软聚合物颗粒产生具有高度降低的压力敏感性的涂层，而没有任何显影性或分层问题。 在本发明中，表面硬化的明胶接枝聚合物颗粒优于简单的明胶接枝材料。 核心聚合物颗粒的直径可以在10至108nm之间，单层明胶壳化学键合到其表面，明胶壳体进一步交联，水合厚度在5至20nm之间。

    Methods of forming stable dispersions of photographic materials
    9.
    发明授权
    Methods of forming stable dispersions of photographic materials 失效
    形成稳定的照相材料分散体的方法

    公开(公告)号：US5158863A

    公开(公告)日：1992-10-27

    申请号：US649515

    申请日：1991-02-01

    申请人： Pranab Bagchi ,  James T. Beck ,  Lia A. Crede

    发明人： Pranab Bagchi ,  James T. Beck ,  Lia A. Crede

    IPC分类号： G03C1/005

    CPC分类号： G03C1/005 ,  Y10S516/04

    摘要： The invention is performed by providing a first flow of water and surfactant, a second flow comprising solvent, base and photographic material, and mixing said first and second streams and either simultaneously or immediately following thereof neutralizing said streams to prevent hydrolysis of a hydrolyzable surfactant and/or premature precipitation of particles before neutralization. The streams then may be immediately treated for formation into photographic materials. In a preferred method the first and second stream may be brought together immediately prior to a mixer with addition of acid directly into the mixer to neutralize the dispersion of fine particles.

    摘要翻译： 本发明通过提供水和表面活性剂的第一流，包含溶剂，碱和照相材料的第二流，并混合所述第一和第二料流，并同时或紧随其后中和所述料流以防止可水解表面活性剂的水解， /或中和前颗粒的过早沉淀。 然后可以将物流立即处理以形成照相材料。 在优选的方法中，可以在混合器之前立即将第一和第二物流直接加入到混合器中以中和细颗粒的分散体。

    Methods of forming stable dispersions of photographic materials
    10.
    发明授权
    Methods of forming stable dispersions of photographic materials 失效
    形成稳定的照相材料分散体的方法

    公开(公告)号：US4990431A

    公开(公告)日：1991-02-05

    申请号：US297005

    申请日：1989-01-17

    申请人： Pranab Bagchi ,  James T. Beck ,  Lia A. Crede

    发明人： Pranab Bagchi ,  James T. Beck ,  Lia A. Crede

    IPC分类号： G03C7/26 ,  G03C1/005 ,  G03C1/015 ,  G03C1/06 ,  G03C7/30 ,  G03C7/32 ,  G03C7/36 ,  G03C7/388

    CPC分类号： G03C1/005

    摘要： The invention is performed by providing a first flow of water and surfactant, a second flow comprising solvent, base and photographic material, and mixing said first and second streams and either simultaneously or immediately following thereof neutralizing said streams to prevent hydrolysis of a hydrolyzable surfactant and/or premature precipitation of particles before neutralization. The streams then may be immediately treated for formation into photographic materials. In a preferred method the first and second stream may be brought together immediately prior to a mixer with addition of acid directly into the mixer to neutralize the dispersion of fine particles.

    摘要翻译： 本发明通过提供水和表面活性剂的第一流，包含溶剂，碱和照相材料的第二流，并混合所述第一和第二料流，并同时或紧随其后中和所述料流以防止可水解表面活性剂的水解， /或中和前颗粒的过早沉淀。 然后可以将物流立即处理以形成照相材料。 在优选的方法中，可以在混合器之前立即将第一和第二物流直接加入到混合器中以中和细颗粒的分散体。