Liquid crystal composition
    1.
    发明授权
    Liquid crystal composition 失效
    液晶组成

    公开(公告)号:US4206071A

    公开(公告)日:1980-06-03

    申请号:US580399

    申请日:1975-05-22

    IPC分类号: C09K19/48 G02F1/13 C09K3/34

    CPC分类号: C09K19/48

    摘要: Novel liquid crystal compositions being in a nematic state over a wide temperature range including room temperature and having superior electrooptical properties are prepared by mixing a mixture of specified p-alkoxybenzylidene-p'-cyanoanilines, as one component, with one kind alone or a mixture of specified p-alkyl-p'-cyanobiphenyls, as a second component, or by further adding to the resulting mixture, p-methoxy-or ethoxy-or methyl-benzylidene-p'-n-butylaniline or a mixture thereof, as a third component.

    摘要翻译: 通过将特定的对烷氧基亚苄基-p'-氰基苯胺作为一种组分与单独一种或混合物的混合物混合,制备在包括室温的宽温度范围内具有优异电光特性的新型液晶组合物 作为第二组分,或通过进一步向所得混合物中加入对甲氧基 - 或乙氧基 - 或甲基 - 亚苄基-β-正丁基苯胺或其混合物作为 第三部分。

    Liquid-crystalline 4-alkylcyclohexyl esters
    2.
    发明授权
    Liquid-crystalline 4-alkylcyclohexyl esters 失效
    液晶4-烷基环己基酯

    公开(公告)号:US4341653A

    公开(公告)日:1982-07-27

    申请号:US238209

    申请日:1981-02-26

    CPC分类号: C09K19/3068 C09K19/42

    摘要: Novel liquid crystal compounds having broader and preferable liquid crystal temperature ranges are provided. Their optically active isomers form a cholesteric liquid crystal, while their racemates form a nematic liquid crystal.The compounds are trans-4"-alkylcyclohexyl esters of 4'-(2-methyl-butyl)-4-biphenylcarboxylic acid expressed by the general formula ##STR1## wherein R represents a straight chain alkyl group having 1 to 10 carbon atoms, and the symbol * represents an asymmetric carbon atom.

    摘要翻译: 提供了具有更宽且优选的液晶温度范围的新型液晶化合物。 它们的旋光异构体形成胆甾醇型液晶,而它们的外消旋体形成向列型液晶。 化合物是由通式(I)表示的4' - (2-甲基 - 丁基)-4-联苯基羧酸的反式-4'-烷基环己基酯,其中R表示具有1至10个直链烷基 碳原子,符号*表示不对称碳原子。

    P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for preparing same
and liquid crystal compositions using same
    4.
    发明授权
    P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for preparing same and liquid crystal compositions using same 失效
    4-氰基苯基4-烷基-4- {40-联苯基羧酸酯,其制备方法和使用其的液晶组合物

    公开(公告)号:US4017416A

    公开(公告)日:1977-04-12

    申请号:US619539

    申请日:1975-10-03

    摘要: Novel nematic liquid crystal compounds having a broad nematic temperature range and a positive dielectric anisotropy by themselves, that is, p-cyanophenyl 4-alkyl-4'-biphenylcarboxylates wherein the alkyl is a straight chain alkyl group having 4-8 carbon atoms or a branched alkyl group having 4-7 carbon atoms and having methyl group as branched group, and a method for preparing the same are provided. Further, novel nematic liquid crystal compositions having a broader nematic temper range i.e. a sufficiently lower nematic limit and a sufficiently higher upper nematic limit is provided by using said compounds.

    摘要翻译: 具有宽的向列温度范围和自身的正介电各向异性的新型向列型液晶化合物,即4-烷基-4'-联苯羧酸对氰基苯酯,其中烷基是具有4-8个碳原子的直链烷基或 具有4-7个碳原子并具有甲基作为支链基团的支链烷基及其制备方法。 此外,通过使用所述化合物,提供具有更宽的向列回调范围,即具有足够低的向列极限和足够高的上限向上限的新型向列型液晶组合物。

    Novel liquid crystal compound
    8.
    发明授权
    Novel liquid crystal compound 失效
    新型液晶复合物

    公开(公告)号:US4668425A

    公开(公告)日:1987-05-26

    申请号:US868728

    申请日:1986-05-30

    CPC分类号: C09K19/3466 C09K19/42

    摘要: A novel liquid crystal compound which is superior in compatibility with other liquid crystal compounds or liquid crystal compositions, chemically stable, and when added to liquid crystal compositions, can raise the clearing point thereof almost without increasing the viscosity and enhance .DELTA..epsilon. and .DELTA.n thereof, and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms; Y represents F, Cl or H; and Z represents F, Cl, cyano group or an alkyl group or an alkoxy group each of 1 to 10 carbon atoms.

    摘要翻译: 一种与其它液晶化合物或液晶组合物相容性优异,化学稳定,并且添加到液晶组合物中的新型液晶化合物,几乎可以提高其透明点而不增加粘度并增加其ΔTA和ΔTA 并且提供含有它们的液晶组合物,该化合物由式(I)表示,其中R表示各自具有1至10个碳原子的烷基或烷氧基; Y表示F,Cl或H; Z表示1〜10个碳原子的F,Cl,氰基或烷基或烷氧基。

    2-cyano-4-halogenophenyl substituted-benzoates
    9.
    发明授权
    2-cyano-4-halogenophenyl substituted-benzoates 失效
    2-氰基-4-卤代苯基取代的苯甲酸酯

    公开(公告)号:US4659501A

    公开(公告)日:1987-04-21

    申请号:US692166

    申请日:1985-01-17

    摘要: Novel liquid crystal compounds, 2-cyano-4-halogenophenyl substituted-benzoates suitable as a component constituting a liquid crystal composition which exhibits a negative dielectric anisotropy, and a liquid crystal composition containing the same are provided, which benzoates are expressed by the formula ##STR1## wherein R represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms; ##STR2## represents ##STR3## or ##STR4## X and Y each represents H or a halogen atom of F or Cl and at least one of X and Y is necessarily H; and Z represents a halogen atom of F, Cl or Br.

    摘要翻译: 提供适合作为构成具有负介电各向异性的液晶组合物的组分的2-氰基-4-卤代苯基取代的苯甲酸酯和含有它们的液晶组合物的新型液晶化合物,其中苯甲酸酯由式 其中R表示1〜10个碳原子的烷基或烷氧基; 表示,X和Y各自表示H或F或Cl的卤素原子,X和Y中的至少一个必须为H; Z表示F,Cl或Br的卤素原子。

    Halogenated ester derivatives
    10.
    发明授权
    Halogenated ester derivatives 失效
    卤代酯衍生物

    公开(公告)号:US4340498A

    公开(公告)日:1982-07-20

    申请号:US227942

    申请日:1981-01-23

    申请人: Shigeru Sugimori

    发明人: Shigeru Sugimori

    摘要: New halogenated ester derivatives and liquid crystal compositions containing the same are provided. The derivatives are expressed by the general formula ##STR1## wherein X is ##STR2## R is 1-15C alkyl group or alkoxy group; and Y is carboxyl group. The derivatives are useful as component(s) of liquid crystal compositions which have higher mesomorphic temperature ranges, nevertheless have lower viscosities; and also have lower absolute values of dielectric anisotropy, nevertheless can be driven at lower voltages.

    摘要翻译: 提供了新的卤化酯衍生物和含有它们的液晶组合物。 衍生物由通式表示,其中X是R 1是1-15C烷基或烷氧基; Y为羧基。 该衍生物可用作具有较高介晶温度范围的液晶组合物的组分,然而具有较低的粘度; 并且还具有较低的介电各向异性的绝对值,但是可以在较低的电压下驱动。