公开(公告)号：US06599668B2

公开(公告)日：2003-07-29

申请号：US09923245

申请日：2001-08-03

Applicant: Krishnan Chari ,  John C. Kowalczyk

Inventor： Krishnan Chari ,  John C. Kowalczyk

IPC: G02B520

CPC classification number: G03C7/08

Abstract: Disclosed is process for forming a color filter array layer on a transparent surface, comprising the step of applying a water-borne solid-particle dispersion of randomly disposed colored beads of a water-immiscible synthetic polymer to the surface.

Abstract translation: 公开了一种在透明表面上形成滤色器阵列层的方法，包括将表面上与水不混溶的合成聚合物的随机涂布的有色珠粒的水性固体 - 颗粒分散体施加到步骤。

公开(公告)号：US06203970B1

公开(公告)日：2001-03-20

申请号：US09464949

申请日：1999-12-16

Applicant: Krishnan Chari

Inventor： Krishnan Chari

IPC: G03C1106

CPC classification number: G03C1/7614 ,  G03C11/08 ,  G03C2001/7635 ,  Y10S430/162

Abstract: A photosensitive photographic element is described which comprises a support having at least one ? hydrophilic silver halide containing layer. On the hydrophilic silver halide containing layers there is an overcoat layer. The overcoat layer comprises a hydrophobic thermoplastic polymer that is present in the form of a porous membrane. The pores of the membrane are occupied by a hydrophilic composition. In another aspect, there is provided a method of making a photosensitive photographic element comprising a support having a hydrophilic silver halide containing layer and an overcoat layer, the overcoat layer comprising a hydrophobic thermoplastic polymer that is present in the form of a porous membrane wherein the pores of said membrane are occupied by a hydrophilic composition, said method comprising the steps of: (a) forming a solution of said hydrophobic thermoplastic polymer and said hydrophilic component in a solvent, (b) coating said solution on said hydrophilic silver containing layer, and (c) removing said solvent. An image can be produced in the element by the steps of: (1) exposing the photographic element described above so as to produce a photographic latent image in the silver halide layer, (2) processing the photographic element in a manner such that the hydrophilic compound is removed from the overcoat membrane, and (3) heating the processed photographic element so as to soften the hydrophobic thermoplastic polymer thereby closing the pores and producing a clear overcoat layer.

Abstract translation: 描述了一种感光照相元件，其包括具有至少一个 亲水卤化银含层。 在含有亲水性卤化银的层上有一层外涂层。 外涂层包含以多孔膜形式存在的疏水性热塑性聚合物。 膜的孔被亲水组合物占据。 另一方面，提供了一种制备感光照相元件的方法，该感光照相元件包括具有亲水性卤化银含量层和外涂层的载体，外涂层包含以多孔膜形式存在的疏水性热塑性聚合物，其中， 所述方法包括以下步骤：（a）在溶剂中形成所述疏水性热塑性聚合物和所述亲水性组分的溶液，（b）将所述溶液涂覆在所述亲水性含银层上， （c）去除所述溶剂。可以通过以下步骤在元件中产生图像：（1）将上述照相元件曝光以在卤化银层中产生照相潜像，（2）处理照相 元素，使得亲水性化合物从外涂层膜上除去，和（3）加工经处理的照相元件以便于浸泡 n疏水性热塑性聚合物，从而封闭孔并产生透明的外涂层。

公开(公告)号：US5543276A

公开(公告)日：1996-08-06

申请号：US255512

申请日：1994-06-08

Applicant: Krishnan Chari ,  Wendell F. Smith, Jr. ,  Paul P. Spara ,  Sundaram Krishnamurthy

Inventor： Krishnan Chari ,  Wendell F. Smith, Jr. ,  Paul P. Spara ,  Sundaram Krishnamurthy

IPC: C07D303/16 ,  C07D303/22 ,  C07D303/34 ,  C07D303/42 ,  C07D303/46 ,  C07D405/12 ,  C07F5/02 ,  C07F9/655 ,  G03C1/005 ,  G03C7/392 ,  G03C1/34

CPC classification number: C07D303/22 ,  C07D303/16 ,  C07D303/34 ,  C07D303/42 ,  C07D303/46 ,  C07D405/12 ,  C07F5/025 ,  C07F9/65502 ,  G03C1/005 ,  G03C7/39268 ,  G03C7/39296

Abstract: Thermal and photochemical yellowing of a color photographic element, such as a color print, is inhibited by incorporating into the photographic element an ionizable epoxy compound having the formula: ##STR1## wherein: R is H, alkyl, substituted alkyl, aryl, or substituted aryl;L.sub.1 is alkyl, substituted alkyl, aryl, or substituted aryl;L.sub.2 is O, CO, S, SO.sub.2, PO.sub.2, C(O)O, NHCO or NHSO.sub.2 ;L.sub.3 is alkyl or substituted alkyl;m is 0 or 1;p is 0 or 1;X is selected from the group consisting of ##STR2## wherein: R' is H, alkyl, substituted alkyl, aryl or substituted aryl,or, if L.sub.2 comprises an ionizable group, X is alkyl, substituted alkyl, aryl or substituted aryl.

Abstract translation: 彩色照相元件如彩色印刷品的热和光化学黄化通过将具有下列通式的可离子化环氧化合物加入到照相元件中：kyl，芳基或取代的芳基; L 1是烷基，取代的烷基，芳基或取代的芳基; L2是O，CO，S，SO2，PO2，C（O）O，NHCO或NHSO2; L3是烷基或取代的烷基; m为0或1; p为0或1; X选自 ，其中：R'是H，烷基，取代的烷基，芳基或取代的芳基，或者如果L2包含可离子化基团，则X是烷基，取代的烷基，芳基或取代的 芳基。

公开(公告)号：US5508147A

公开(公告)日：1996-04-16

申请号：US431

申请日：1993-01-04

Applicant: Krishnan Chari ,  Wendell F. Smith ,  Sundaram Krishnamurthy

Inventor： Krishnan Chari ,  Wendell F. Smith ,  Sundaram Krishnamurthy

IPC: G03C7/30 ,  G03C7/38 ,  G03C7/388 ,  G03C7/392 ,  G03C7/407 ,  G03C7/413 ,  G03C11/00

CPC classification number: G03C7/3008 ,  G03C7/3029 ,  G03C7/3885 ,  G03C7/413

Abstract: Yellowing of a processed photographic element is inhibited by incorporating a scavenger comound capable of reacting with magenta coupler, e.g. an epoxy compound, in a layer adjacent a layer containing the magenta coupler. In a preferred embodiment, the magenta coupler containing layer is sandwiched between layers containing the scavenger compound. Prior to processing at least one of these layers contains a solubilizing agent for the scavenger compound. In preferred embodiments, the processing solution used to process the photographic element containing an external solubilizing agent for the scavenger compound, preferably benzyl alcohol.

Abstract translation: 通过加入能够与品红色成色剂反应的清除剂组合物，例如， 在邻近包含品红色成色剂的层的层中的环氧化合物。 在优选的实施方案中，含有红紫色成色剂的层夹在含有清除剂化合物的层之间。 在加工之前，这些层中的至少一层含有用于清除剂化合物的增溶剂。 在优选的实施方案中，用于处理含有用于清除剂化合物的外部增溶剂的照相元件的处理溶液，优选苄醇。

公开(公告)号：US5451497A

公开(公告)日：1995-09-19

申请号：US175824

申请日：1993-12-30

Applicant: David D. Miller ,  Krishnan Chari

Inventor： David D. Miller ,  Krishnan Chari

IPC: G03C7/388 ,  G03C1/08

CPC classification number: G03C7/3882 ,  Y10S516/01 ,  Y10S516/06

Abstract: The tendency of a photographically useful compound (PUC) to crystallize when dispersed in an aqueous medium is inhibited by codispersing with the PUC a non-color forming, oil-soluble, monomeric or oligomeric organic compound having a glass transition temperature between 0.degree. and 150.degree. C. Preferred organic compounds are oil-soluble sucrose esters, such as sucrose octaacetate, and rosin and derivatives thereof.

Abstract translation: 当PUC分散在水性介质中时，照相用化合物（PUC）结晶的趋势通过将PUC与玻璃化转变温度在0至150℃之间的非成色型油溶性单体或低聚有机化合物进行共混来抑制 优选的有机化合物是油溶性蔗糖酯，例如蔗糖八乙酸酯，以及松香及其衍生物。

公开(公告)号：US5190851A

公开(公告)日：1993-03-02

申请号：US631607

申请日：1990-12-21

Applicant: Krishnan Chari ,  John T. Keech ,  John F. Sawyer ,  Jeffrey W. Schmoeger ,  Paul L. Zengerle

Inventor： Krishnan Chari ,  John T. Keech ,  John F. Sawyer ,  Jeffrey W. Schmoeger ,  Paul L. Zengerle

IPC: G03C1/035 ,  G03C7/20 ,  G03C7/30 ,  G03C7/32 ,  G03C7/388

CPC classification number: G03C7/3029

Abstract: A color photographic silver halide negative working duplicating element comprising a support having thereon at least one red-sensitive photographic silver halide emulsion layer comprising at least one cyan image-dye forming coupler; at least one green-sensitive photographic silver halide emulsion layer comprising at least one magenta image-dye forming coupler; and, at least one blue-sensitive photographic silver halide emulsion layer comprising at least one yellow image-dye forming coupler, provides improved images when (a) at least one of the layers comprises a unit of at least two layers including a first layer and a second layer, the first layer having a higher photosensitivity than the second layers and being farther from the support than the second layers; (b) the first layers contain an image-dye forming coupler in an amount insufficient to react with all the oxidized developer formed during development after maximum exposure; (c) the image-dye forming couplers of the first layers being in a dispersion having a mean particle size of less than 0.14 micron; and, (d) the silver halide grains of the first layers having a mean grain volume less than 0.015 cubic micron. Such a photographic element is especially useful in motion picture film duplication providing reduction in granularity of the image.

Abstract translation: 一种彩色摄影卤化银负性复制元件，包括其上具有至少一种红色感光性照相卤化银乳剂层的载体，其包含至少一种形成青色影像的成色剂; 至少一种感光卤化银乳剂层，其至少包含至少一种品红色成像成色剂; 和至少一种含有至少一种黄色成像成色剂的感光性感光卤化银乳剂层，当（a）至少一层包含至少两层包含第一层和第二层的单元时，提供改进的图像 第二层，所述第一层具有比所述第二层更高的光敏性，并且比所述第二层更远离所述载体; （b）第一层含有图像染料形成成色剂，其数量不足以在最大曝光后在显影过程中形成的所有氧化显影剂反应; （c）第一层的图像染料形成成色剂在平均粒径小于0.14微米的分散体中; 和（d）第一层的卤化银颗粒的平均颗粒体积小于0.015立方微米。 这种照相元件在电影胶片复制中特别有用，从而降低了图像的粒度。