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81. 发明授权

US3979319A Liquid crystal composition 失效
标题翻译：液晶组成
公开(公告)号：US3979319A
公开(公告)日：1976-09-07
申请号：US347632
申请日：1973-04-04
申请人： Masakazu Fukai , Komei Asai , Seiichi Nagata , Hiroshi Tatsuta , Koshiro Mori
发明人： Masakazu Fukai , Komei Asai , Seiichi Nagata , Hiroshi Tatsuta , Koshiro Mori
IPC分类号： C07C69/773 , C09K19/06 , C09K19/20 , C09K19/22 , C09K19/24 , C09K19/26 , C09K19/42 , G02F1/1337 , C09K3/34
CPC分类号： C09K19/2007 , C09K19/06 , C09K19/22 , C09K19/24 , C09K19/26 , C09K19/42 , G02F1/133703
摘要： A liquid crystal composition comprises a liquid crystal and a carboxylic acid or its ester as an additive. By the presence of the additive, the longitudinal axes of liquid crystal molecules can be spontaneously oriented in a direction perpendicular to the surface of a holding wall of a liquid crystal display plate. In particular, the additives may be esters of p-hydroxy- or m-hydroxy-benzoic acid, phenylacetic acids having 1 or 2 hydroxy groups or their esters, phenylpropionic acids having 1 or 2 hydroxy groups or their esters, or 3, 4, 5-trihydroxybenzoic acid esters, or said additives may be selected from the group consisting of compounds having the formulae: ##SPC1##Wherein R.sub.3 is hydrogen or a normal alkyl group having 1 to 18 carbon atoms; R.sub.5 is hydrogen, hydroxy, a normal alkyl group having 1 to 16 carbon atoms or a normal alkoxy group having 1 to 16 carbon atoms; R.sub.6 is hydrogen, hydroxy or nitro; n.sub.1 is 1 or 2: and n.sub.2 is 0, 1 or 2.
摘要翻译：液晶组合物包含液晶和羧酸或其酯作为添加剂。通过存在添加剂，液晶分子的纵轴可以在与液晶显示板的保持壁的表面垂直的方向上自发取向。特别地，添加剂可以是对羟基或间羟基 - 苯甲酸的酯，具有1或2个羟基的苯乙酸或其酯，具有1或2个羟基的苯基丙酸或其酯， 5-三羟基苯甲酸酯或所述添加剂可以选自具有下式的化合物：

82. 发明授权

US3960749A Liquid-crystal mixtures for use in liquid-crystal displays 失效
标题翻译：用于液晶显示器的液晶混合物
公开(公告)号：US3960749A
公开(公告)日：1976-06-01
申请号：US435668
申请日：1974-01-23
申请人： James L. Fergason
发明人： James L. Fergason
IPC分类号： C09K19/22 , C09K19/48 , G02F1/137 , G02F1/139 , C09K3/34 , G02F1/13 , G02F1/16 , G02F1/18
CPC分类号： G02F1/1396 , C09K19/22 , C09K19/48 , G02F2001/13706
摘要： Mixtures of nematic-phase liquid-crystal materials that contain a sufficient amount of p-cyanobenzal-p'-n-butylaniline or the like, possibly together with other materials, will exhibit the nematic phase at about room temperature and over a considerable temperature range above and below, and at the same time, a positive dielectric anisotropy. This enables the production of a liquid-crystal unit comprising first and second pieces of flat glass, each coated on one side with a transparent electroconductive oxide coating and each having its so-coated surface rubbed with cotton cloth or the like in one direction, with the two surfaces so rubbed then being spaced about 1/4 to 2 mils apart and with the above-mentioned nematic-phase liquid-crystal material in between, and with the directions of rubbing being oriented substantially perpendicular to each other. Such a liquid-crystal unit has the particular property that when there is no potential applied to the electroconductive coatings and the unit is placed between crossed polarizers, light is transmitted, but the application of but a relatively low voltage across the two above-mentioned coatings, something on the order of 5 volts, will generate an electric field that causes the nematic-phase liquid-crystal material to "untwist," so that it no longer permits transmission of light through the structure comprising the liquid-crystal unit and the crossed polarizers. The effect is quick-acting and reversible. Conversely, with parallel polarizers stationed to each side of such a unit, the effect is the opposite; with no voltage applied, no light is transmitted through the structure, but the application of sufficient voltage makes light transmission possible.
摘要翻译：含有足够数量的对氰基亚苄基-p'-正丁基苯胺等的向列相液晶材料的混合物可能与其它材料一起将在约室温和相当大的温度范围内呈现向列相并且同时具有正的介电各向异性。这使得能够制造包括第一和第二平板玻璃的液晶单元，每个平板玻璃的一面用透明的导电氧化物涂层涂覆，并且每个均具有在一个方向上用棉布等摩擦的每个，这两个表面如此摩擦然后隔开约1/4至2密耳间隔，并且上述向列相液晶材料之间并且摩擦方向基本上彼此垂直。这种液晶单元具有特殊的特性，即当不存在施加在导电涂层上的电势并且该单元位于正交偏振器之间时，光被透射，但是在两个上述涂层上施加相对低的电压，大约5伏特的物体会产生电场，导致向列相液晶材料“解捻”，使其不再允许光透过包括液晶单元和交叉的结构的光偏振器效果是速效和可逆的。相反，使用平行偏振器驻留在这样一个单元的每一侧，效果是相反的; 没有施加电压，没有光透过结构，但是施加足够的电压使得光透射成为可能。

83. 发明授权

US3960748A Nematic liquid crystal compositions 失效
标题翻译：向列型液晶组合物
公开(公告)号：US3960748A
公开(公告)日：1976-06-01
申请号：US415197
申请日：1973-11-12
申请人： Bruce H. Klanderman , Richard T. Klingbiel
发明人： Bruce H. Klanderman , Richard T. Klingbiel
IPC分类号： C09K19/22 , C09K3/34 , G02F1/13
CPC分类号： C09K19/22
摘要： A nematic liquid crystal composition having a resistivity of about 1 .times. 10.sup.8 to 1 .times. 10.sup.10 ohm-cm and a broad mesophase comprising a mixture prepared by transiminization between at least one Schiff base compound of the formula ##SPC1##And at least one other Schiff base of the formula: ##SPC2##Wherein R, R.sup.1, R.sup.2 and R.sup.3 are alkyl radicals having 1 to 18 carbon atoms. Advantageously the Schiff bases I and II are subjected to transiminization at a molar ratio of about 5/1 to 1/5.
摘要翻译：具有约1×10 8至1×10 10欧姆 - 厘米电阻率的向列型液晶组合物和宽中间相，其包含通过至少一种下式的席夫碱化合物与至少一种下式的席夫碱化合物之间的转化反应制备的混合物：式：

84. 发明授权

US3956167A Liquid crystal compositions and devices 失效
标题翻译：液晶组成和装置
公开(公告)号：US3956167A
公开(公告)日：1976-05-11
申请号：US361333
申请日：1973-05-17
申请人： Chan Soo Oh
发明人： Chan Soo Oh
IPC分类号： C09K19/22 , G02F1/13 , C09K3/34
CPC分类号： C09K19/22
摘要： Improved liquid crystal compositions comprise a major portion by weight of at least three different p-alkoxybenzylidene-p'-aminophenylalkanoates and a minor portion by weight of p-methoxybenzylidene-p'-butylaniline and p-ethoxybenzylidene-p'-butylaniline. The compositions have broader nematic ranges than either ternary mixtures of the alkanoates or binary mixtures of the other two compounds. In addition, when certain dopants are added to the compositions, optimum improvement in properties is obtained using less dopant than that required by prior art compositions.
摘要翻译：改进的液晶组合物包含至少三种不同的对 - 烷氧基亚苄基 - 对氨基苯基链烷酸酯的重要部分重量份和少量重量的对甲氧基亚苄基 - 对 - 丁基苯胺和对 - 乙氧基亚苄基 - 对 - 丁基苯胺。组合物具有比链烷酸酯的三元混合物或其它两种化合物的二元混合物更广泛的向列范围。此外，当将某些掺杂剂添加到组合物中时，使用比现有技术组合物所需的更少的掺杂剂获得最佳的性能改进。

85. 发明授权

US3873186A Liquid crystal display 失效
标题翻译：液晶显示器
公开(公告)号：US3873186A
公开(公告)日：1975-03-25
申请号：US39851773
申请日：1973-09-18
申请人： MOTOROLA INC
发明人： RITCHIE KIM
IPC分类号： G09F9/46 , C09K19/22 , G02F1/1347 , G04G9/00 , G02F1/36
CPC分类号： G02F1/1347 , C09K19/22 , G04G9/0035
摘要： A liquid crystal display with an extended temperature range has a pair of serially aligned cells. One of the cells contains a liquid crystal material having a nematic temperature range extending from at least -20*C to 60*C while the liquid crystal material in the other cell has a nematic temperature range from at least 60*C to 100*C so that normal expected temperature ranges are covered. The two cells are defined by first, second and third plates which are secured in spaced parallel relation. The second or intermediate plate is a light transmitting plate which has electrodes on opposite surfaces in contact with each of the liquid crystal materials. The first and third plates have electrodes on only one side forming the second electrode for each of the two cells, one of said plates being reflective and the other transmissive.
摘要翻译：具有扩展温度范围的液晶显示器具有一对串行对准的单元。其中一个电池包含具有从至少-20℃至60℃延伸的向列温度范围的液晶材料，而另一个电池中的液晶材料具有至少60℃至100℃的向列温度范围以便涵盖正常的预期温度范围。两个单元由以隔开的平行关系固定的第一，第二和第三板限定。第二或中间板是在与每个液晶材料接触的相对表面上具有电极的透光板。第一和第三板在仅一个侧面上具有形成用于两个单元中的每一个的第二电极的电极，所述板中的一个是反射的，另一个是透射的。

86. 发明授权

US3853785A Stable liquid crystal mixtures including anil-type nematic compounds 失效
标题翻译：稳定的液晶混合物，包括非特异性的化合物
公开(公告)号：US3853785A
公开(公告)日：1974-12-10
申请号：US30396272
申请日：1972-11-06
申请人： UNIV TEMPLE
发明人： LABES M
IPC分类号： C09K19/22 , C09K19/48 , C09K3/00
CPC分类号： C09K19/48 , C09K19/22
摘要： Stable anil-type nematic liquid crystals of the formula

WHEREIN R1 and R2 are each an alkyl, alkoxy, alkylester, aryl, aryloxy, arylester, aralkyl, carboxylic acid, halogen, nitro, cyano group or the like are combined with other liquid crystal materials to produce a liquid crystal composition of enhanced stability and/or broadened active temperature range. The liquid crystal mixtures of this invention, because of their excellent stability, are especially useful in light valves, optical display devices and similar applications which involve the modulation of light.
摘要翻译：式WHEREIN R1和R2各自为烷基，烷氧基，烷基酯，芳基，芳氧基，芳基酯，芳烷基，羧酸，卤素，硝基，氰基等的稳定的苯胺型向列型液晶与其它液晶材料以产生增强的稳定性和/或扩大的活性温度范围的液晶组合物。由于其优异的稳定性，本发明的液晶混合物在涉及光调制的光阀，光学显示装置和类似应用中特别有用。

87. 发明授权

US3829491A Organic thermotropic nematic compounds 失效
标题翻译：有机热变性物质
公开(公告)号：US3829491A
公开(公告)日：1974-08-13
申请号：US36342973
申请日：1973-05-24
申请人： VARI LIGHT CORP
发明人： STREBEL E
IPC分类号： C09K19/22 , C07C119/00
CPC分类号： C09K19/22
摘要： A NEW FAMILY OF ORGANIC THERMOTROPIC NEMATIC COMPOUNDS COMPRISING N-(PARA-SUBSTITUTED ALKOXY-VENZYLIDENE)-ANILINES HAVING ALSO A PARA-N-BUTYL SUBSTITUTED ON THE ANILINE RING. THESE COMPOUNDS HAVE THE FOLLOWING STRUCTURAL FORMULA:

1-(RO-),4-((4-R''-PHENYL)-N=CH-)-BENZENE

WHEREIN R IS A STRAIGHT CHAIN ALKYL GROUP CONTANING 1 TO 4 CARBON ATOMS AND R'' IS N-BUTYL. SYNTHESIS INVOLVES COMBINING THE DESIRED P-SUBSTITUTED BENZALDEHYDE AND P-NBUTYL ANILINE IN EQUIMOLAR PROPORTIONS IN ANHYDROUS ETHYL ALCOHOL WITH GLACIAL ACETIC ACID AS CATALYST. THE RESULTING HOMOLOGOUS SERIES OF COMPOUNDS ARE USEFUL AS MATERIALS WHICH UNDERGO A CHANGE IN OPTICAL PROPERTIES UNDER THE INFLUENCE OF EXTERNALLY APPLIED ENERGY, PREFERRED MEMBERS OF WHICH, EITHER INDIVIDUALLY OR IN BINARY MIXTURES, HAVE MELTING POINT NEAR ROOM TEMPERATURE, A BROAD NEMATIC MESOMORPHIC TEMPERATURE RANGE WITHIN AN OVERAL RANGE OF ABOUT 0* TO ABOUT 70*C., LOW VISCOSITY IN THE NEMATIC PHASE, GOOD STABILITY, AND SUBSTANTIALLY NO COLOR.

88. 发明授权

US3809656A Eutectic mixture of para-alkoxybenzylidene para-n-alkyl anilines 失效
标题翻译：对甲氧基苯乙烯对甲氧基苯甲酸的保护性混合物
公开(公告)号：US3809656A
公开(公告)日：1974-05-07
申请号：US35883873
申请日：1973-05-10
申请人： VARI LIGHT CORP
发明人： STREBEL E
IPC分类号： C09K19/22 , C09K3/00 , C07C119/00
CPC分类号： C09K19/22
摘要： A NEW FAMILY OF ORGANIC THERMOTROPIC NEMATIC COMPOUNDS COMPRISING PARA-SUBSTITUTED ALKOXY BENZYLIDENEANILINES HAVING ALSO PARA-ALKYL SUBSTITUENTS ON THE ANILINE RING. THESE COMPOUNDS HAVE THE FOLLOWING STRUCTURAL FORMULA:

1-((4-R''-PHENYL)-N=CH-),4-(R-O-)BENZENE

WHEREIN R IS A STRAIGHT OR BRANCHED CHAIN ALKYL GROUP CONTAINING 1 TO 8 C ATOMS; AND R'' IS A STRAIGHT CHAIN ALKYL GROUP CONTAINING 2 TO 8 C ATOMS. SYNTHESIS INVOLVES COMBINING THE DESIRED SUBSTITUTED BENZALDEHYDE AND SUBSTITUTED ANILINE IN EQUIMOLAR PROPORTIONS IN ANHYDROUS ETHYL ALCOHOL WITH GLACIAL ACETIC ACID AS CATALYST. THE RESULTING HOMOLOGOUS SERIES OF COMPOUNDS ARE USEFUL AS OPTICALLY ACTIVE (I.E. BIREFRINGENT) MATERIALS WHICH HAVE A MESOMORPHIC PHASE RANGING FROM ABOUT 0* TO ABOUT 70* C., LOW VISCOSITY AT THE NEMATIC RANGE, GOOD HEAT STABILTIY, AND SUBSTANTIALLY NO COLOR.

89. 发明授权

US3742054A Mesomorphic composition of matter 失效
标题翻译：物质的组成
公开(公告)号：US3742054A
公开(公告)日：1973-06-26
申请号：US3742054D
申请日：1971-07-02
申请人： OWENS ILLINOIS INC
发明人： DIETRICH H , STEIGER E
IPC分类号： C09K19/22 , G02F1/00 , H01J17/49 , C07C119/00
CPC分类号： C09K19/22 , G02F1/0045 , H01J17/492
摘要： There is disclosed the preparation of a mesomorphic composition of the structure:

WHERE X IS AN INTEGER OF 1 TO 10, TYPICALLY 1 TO 5. The composition is prepared by the reaction of para-n-alkylaniline and para-phenylbenzaldehyde, where the alkyl substituent contains one to 10 carbon atoms.
摘要翻译：公开了该结构的介晶组合物的制备：

90. 发明授权

US3689525A P-alkoxyphenyl esters of 4-capronyloxy benzoic acid 失效
标题翻译： 4-巯基苯甲酸的α-对羟基苯甲酸酯
公开(公告)号：US3689525A
公开(公告)日：1972-09-05
申请号：US3689525D
申请日：1971-02-26
申请人： HOECHST AG
发明人： SCHEURLE BRUNO , KELKER KANS
IPC分类号： C09K19/20 , C09K19/22 , C09K19/46 , G01R33/28 , C07C69/78
CPC分类号： G01R33/281 , C09K19/2007 , C09K19/22 , C09K19/46
摘要： N-(4-methoxybenzylidene)-4''-O-n-butyrylaminophenol and 4methoxy- or 4-ethoxybenzylidene-4''-n-butyl aniline form enantiotropic nematic phases which are stable at room temperature or slightly above. If as third component 4-capronylhydroxy benzoic acid-4-4''-alkoxy phenol ester is added wherein alkoxy stands for ethoxy and butoxy, nematic phases are obtained which have melting points below O* C. The new nematogenic mixtures are useful for example as solvents for the NMR-spectroscopy.
摘要翻译： 4-（4-甲氧基亚苄基）-4'-O-正丁酰氨基苯酚和4-甲氧基 - 或4-乙氧基亚苄基-4'-正丁基苯胺形成在室温或稍高于稳定的对映向列相。如果作为第三组分加入4-间 - 己基羟基苯甲酸-4-4'-烷氧基苯酚酯，其中烷氧基代表乙氧基和丁氧基，则得到熔点低于0℃的向列相。新的生成混合物可用于例如溶剂用于NMR光谱学。

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