-
公开(公告)号：US20060091357A1
公开(公告)日：2006-05-04
申请号：US10977110
申请日：2004-10-29
Applicant: Thomas Welter , Krishnan Chari
Inventor： Thomas Welter , Krishnan Chari
CPC classification number: C09K19/32 , C09K19/3477 , C09K19/3491 , C09K19/586 , C09K19/588 , C09K2019/327 , C09K2019/3408
Abstract: The present invention relates to a phototunable chiral dopant represented by the following structure: wherein: A, B, C and D are independent divalent groups; X and Z are any independently selected substituent; n is an integer and independently varies from 0 to 3; q is an integer and independently varies from 0 to 5; RNG1 and RNG2 independently represent any ring group; m represents an integer independently varying from 0 to 4; p represents an integer independently varying from 1 to 4; Q independently represents a carbon C—RC, or nitrogen, wherein RC is independently hydrogen or any substituent. The invention also relates to the use of the dopant in a liquid crystalline composition and a display containing the same, as well as a material composition comprising an enantiomeric excess of one enantiomer of the compound.
-
公开(公告)号：US20050072961A1
公开(公告)日：2005-04-07
申请号：US10651692
申请日：2003-08-29
Applicant: Thomas Welter , Krishnan Chari
Inventor： Thomas Welter , Krishnan Chari
IPC: C07C39/17 , C07C43/20 , C07C43/23 , C07C49/792 , C07C49/84 , C07C69/00 , C07C69/94 , C07C255/57 , C09K19/32 , C09K19/58 , C09K19/52
CPC classification number: C07C39/17 , C07B2200/07 , C07C43/23 , C07C49/792 , C07C49/84 , C07C255/57 , C07C2603/94 , C09K19/586 , C09K19/588 , Y10T428/10
Abstract: The invention relates to a novel class of compounds useful as chiral dopants, which compounds are available in both enantiomeric forms. Another aspect of the invention relates to such compounds having a enantiomeric excess of one enantiomeric form, which are useful in liquid crystal formulations. Such formulations are advantageous in displays and various other products.
Abstract translation: 本发明涉及可用作手性掺杂剂的新一类化合物，该化合物可以两种对映体形式获得。 本发明的另一方面涉及具有一种对映体形式的对映异构体过量的这些化合物，其可用于液晶制剂。 这种制剂在显示器和各种其他产品中是有利的。
-
公开(公告)号：US20050019804A1
公开(公告)日：2005-01-27
申请号：US10868082
申请日：2004-06-15
Applicant: Krishnan Chari , Zhanjun Gao , Joseph Sedita , Ramasubramaniam Hanumanthu , Charles Lusignan
Inventor： Krishnan Chari , Zhanjun Gao , Joseph Sedita , Ramasubramaniam Hanumanthu , Charles Lusignan
CPC classification number: G01N33/54393 , B01J19/0046 , B01J2219/00466 , B01J2219/00545 , B01J2219/00596 , B01J2219/00648 , B01J2219/00722 , B01J2219/00725 , C40B40/06 , C40B40/10 , C40B70/00 , G01N33/5432
Abstract: An element containing an array of microspheres on a support is described, and a method of making the element, wherein the method includes coating a support with a coating composition to form a receiving layer with a modifiable elastic modulus; coating on the receiving layer a dispersion of microspheres in a fluid suspension; modifying the modulus of the receiving layer to allow the microspheres to partially submerge into the receiving layer; removing the fluid suspension from the receiving layer; and fixing the microspheres in the receiving layer so that the element can withstand wet processing.
Abstract translation: 描述了在载体上含有微球阵列的元素，以及制备该元件的方法，其中该方法包括用涂料组合物涂覆载体以形成具有可修改的弹性模量的接收层; 在接收层上涂覆微球在流体悬浮液中的分散体; 改变接收层的模量以允许微球部分地淹没到接收层中; 从接收层去除流体悬浮液; 并将微球固定在接收层中，使得该元件能够经受湿处理。
-
公开(公告)号：US20050019745A1
公开(公告)日：2005-01-27
申请号：US10625428
申请日：2003-07-23
Applicant: Krishnan Chari , Zhanjun Gao , Joseph Sedita , Ramasubramaniam Hanumanthu , Charles Lusignan
Inventor： Krishnan Chari , Zhanjun Gao , Joseph Sedita , Ramasubramaniam Hanumanthu , Charles Lusignan
CPC classification number: G01N33/54393 , B01J19/0046 , B01J2219/00466 , B01J2219/00545 , B01J2219/00596 , B01J2219/00648 , B01J2219/00722 , B01J2219/00725 , C40B40/06 , C40B40/10 , C40B70/00 , G01N33/5432
Abstract: A method for making an element containing an array of microspheres on a support, the method comprising the steps of: coating a support with a coating composition to form a receiving layer with a modifiable elastic modulus; coating on the receiving layer a dispersion of microspheres in a carrier fluid; modifying the modulus to allow the microspheres to partially submerge into the intermediate layer; removing the fluid medium from the suspension of microspheres; and fixing the microspheres on the receiving layer so that the element can withstand wet processing.
Abstract translation: 一种在载体上制备含有微球阵列的元素的方法，所述方法包括以下步骤：用涂料组合物涂覆载体以形成具有可修改的弹性模量的接收层; 在接收层上涂覆微球在载体流体中的分散体; 改变模量以允许微球部分地淹没到中间层中; 从微球的悬浮液中除去流体介质; 并将微球固定在接收层上，使得元件能够经受湿处理。
-
公开(公告)号：US06607873B2
公开(公告)日：2003-08-19
申请号：US09922273
申请日：2001-08-03
Applicant: Krishnan Chari , Sidney J. Bertucci , Michael J. Simons
Inventor： Krishnan Chari , Sidney J. Bertucci , Michael J. Simons
IPC: G03C1825
CPC classification number: G03C7/08
Abstract: Disclosed is a color film comprising (1) a support layer, (2) a light sensitive layer, and (3) a water permeable color filter array (CFA) layer comprising a continuous phase transparent binder containing a random distribution of colored transparent beads, said beads comprising a water-immiscible synthetic polymer or copolymer.
Abstract translation: 公开了一种彩色胶片，其包括（1）支撑层，（2）感光层，和（3）包含连续相透明粘合剂的透水性滤色器阵列（CFA）层，其包含着色透明珠粒的随机分布， 所述珠粒包含与水不混溶的合成聚合物或共聚物。
-
Patent Agency Ranking46.发明授权Color photographic element with improved resistance to thermal and photochemical yellowing 失效具有改善的抗热和光化学黄变性的彩色照相元件
公开(公告)号：US5476756A
公开(公告)日：1995-12-19
申请号：US257584
申请日：1994-06-08
Applicant: Krishnan Chari , Wendell F. Smith , Sundaram Krishnamurthy
Inventor： Krishnan Chari , Wendell F. Smith , Sundaram Krishnamurthy
CPC classification number: G03C7/3008 , G03C7/3029 , G03C7/3885 , G03C7/413
Abstract: Yellowing of a processed photographic element is inhibited by incorporating a scavenger compound capable of reacting with magenta coupler, e.g. an epoxy compound, in a layer adjacent a layer containing the magenta coupler. 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 contains an external solubilizing agent for the scavenger compound, preferably benzyl alcohol.
Abstract translation: 通过加入能够与品红成色剂反应的清除剂化合物，例如， 在邻近包含品红色成色剂的层的层中的环氧化合物。 这些层中的至少一层含有清除剂化合物的增溶剂。 在优选的实施方案中，用于处理照相元件的处理溶液含有用于清除剂化合物的外部增溶剂，优选苄醇。
-
公开(公告)号：US5426019A
公开(公告)日：1995-06-20
申请号：US175821
申请日：1993-12-30
Applicant: Krishnan Chari
Inventor： Krishnan Chari
CPC classification number: G03C7/3882
Abstract: Yellowing, dye fade and thermal pinking of a processed color photographic element is improved by incorporating into the photographic element 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 include rosin derivatives, natural resins and oil-soluble sucrose esters, etc. In a particularly preferred embodiment, the above-noted properties are improved by incorporating into the photographic element an oil-soluble rosin derivative, such as abietic acid.
Abstract translation: 通过在照相元件中加入玻璃化转变温度在0℃至150℃之间的非成色型油溶性单体或低聚有机化合物，可以改善经处理的彩色照相元件的黄化，染料褪色和热粉化。 有机化合物包括松香衍生物，天然树脂和油溶性蔗糖酯等。在一个特别优选的实施方案中，通过在照相元件中加入油溶性松香衍生物如松香酸可以改善上述性能。
-
48.发明授权Direct-positive photographic materials containing a nucleator in solid particle dispersion form 失效含有固体颗粒分散形式的成核剂的直接正性照相材料
公开(公告)号：US5283167A
公开(公告)日：1994-02-01
申请号：US828431
申请日：1992-01-30
Applicant: Krishnan Chari , Douglas E. Corbin , Glenn M. Brown , Harry A. Hoyen
Inventor： Krishnan Chari , Douglas E. Corbin , Glenn M. Brown , Harry A. Hoyen
CPC classification number: G03C1/48546 , Y10S430/141
Abstract: A direct-positive image-forming photographic material comprises a supporting substrate bearing a light sensitive, nonprefogged silver halide photographic emulsion capable of forming an internal latent image and includes a water-insoluble nucleator. The nucleator is incorporated in the photographic material in the form of a solid particle dispersion to improve the storage stability of the photographic material. The development rate of the photographic material may be increased by use of a developer containing an activator for the nucleator.
Abstract translation: 直接成像照相材料包括支撑基底，其支撑能形成内部潜像并且包括水不溶性成核剂的光敏非离子卤化银照相乳剂。 成核剂以固体颗粒分散体的形式并入照相材料中以改善照相材料的储存稳定性。 可以通过使用含有成核剂活化剂的显影剂来增加照相材料的显影速率。
-
49.发明授权Stabilizatin of precipitated dispersions of hydrophobic couplers, surfactants and polymers 失效疏水性成色剂，表面活性剂和聚合物的沉淀分散体的稳定剂
公开(公告)号：US5015564A
公开(公告)日：1991-05-14
申请号：US531657
申请日：1990-06-01
Applicant: Krishnan Chari
Inventor： Krishnan Chari
CPC classification number: G03C7/3212 , G03C7/3882 , Y10S516/01
Abstract: The invention provides stable dispersions of couplers and methods of their formation. The stable dispersions are formed by the use of a nonionic water soluble polymer in combination with an anionic surfactant having a sulfate or sulfonate head group and a hydrophobic group of 8 to 20 carbons. The preferred nonionic water soluble polymers are polyethyleneoxide and polyvinylpyrrolidene.
Abstract translation: 本发明提供稳定的成色剂分散体及其形成方法。 通过使用非离子水溶性聚合物与具有硫酸盐或磺酸盐头基和8至20个碳的疏水基团的阴离子表面活性剂组合来形成稳定的分散体。 优选的非离子水溶性聚合物是聚环氧乙烷和聚乙烯吡咯烷酮。
-
50.发明授权公开(公告)号：US08025938B2
公开(公告)日：2011-09-27
申请号：US12622534
申请日：2009-11-20
Applicant: Deepak Shukla , Krishnan Chari
Inventor： Deepak Shukla , Krishnan Chari
CPC classification number: C09K19/586 , C09K19/588 , Y10T428/10 , Y10T428/1036 , Y10T428/1055
Abstract: The present invention relates to photo-tunable dopant compositions comprising a photo-reactive chiral compound capable of undergoing a photochemical reaction resulting in the loss of chirality, and a triplet sensitizer. The present invention also relates to a display comprising a substrate, a liquid crystalline layer thereon, wherein the liquid crystalline layer comprises a nematic host, at least one chiral dopant, a photo-reacted compound, and a triplet sensitizer, and at least one transparent conductive layer. The present invention also relates to a method of tuning a cholesteric liquid crystal material comprising providing at least one mesogenic compound, at least one triplet sensitizer, and at least one photo-reactive chiral compound; combining the at least one mesogenic compound, at least one triplet sensitizer, and at least one photo-reactive chiral compound to form a mixture; and irradiating the mixture for a period of time.
Abstract translation: 本发明涉及光可掺杂掺杂剂组合物，其包含能够经历导致手性丧失的光化学反应的光反应性手性化合物和三线态敏化剂。 本发明还涉及一种显示器，其包括基底，其上的液晶层，其中所述液晶层包括向列型主体，至少一种手性掺杂剂，光反应化合物和三线态敏化剂，以及至少一种透明 导电层。 本发明还涉及一种调节胆甾型液晶材料的方法，包括提供至少一种介晶化合物，至少一种三线态敏化剂和至少一种光反应性手性化合物; 组合所述至少一种介晶化合物，至少一种三线态敏化剂和至少一种光反应性手性化合物以形成混合物; 并将混合物照射一段时间。
-
-
-
-
-
-
-
-
-
Search Results
86
records
(took 0.016 seconds)
