Liquid crystal substituted 1,3-dioxanes and mixtures containing them
    3.
    发明授权
    Liquid crystal substituted 1,3-dioxanes and mixtures containing them 失效
    液晶取代1,3-二恶烷及其混合物

    公开(公告)号:US4565881A

    公开(公告)日:1986-01-21

    申请号:US405677

    申请日:1982-08-06

    IPC分类号: C09K19/34 C07D319/06

    CPC分类号: C09K19/3402 C09K2019/3422

    摘要: Liquid crystal substituted 1,3-dioxanes and mixtures containing the same.The invention relates to liquid crystal substituted 1,3-dioxanes and substances containing the same, for electro-optical arrays for the modulation of incident or transmitted light as well as for the reproduction of figures, symbols and images.The object of the invention is nematic liquid-crystal substances with favorable properties with respect to melting and clear points, stability toward thermal stress, effect of light, chemicals and electric fields as well as loss of color and processes for their production.The object is accomplished by the creation of new nematic liquid-crystal substances.According to the invention, liquid crystal 2,5-disubstituted derivatives of 1,3-dioxane of the general formula ##STR1## are proposed, wherein ##STR2## The new substances may be used in mixtures containing at least one of the substances according to the invention.

    摘要翻译: 液晶取代1,3-二恶烷及含有它们的混合物。 本发明涉及液晶取代的1,3-二恶烷及其含有物质的物质,用于调制入射或透射光的电光阵列,以及图形,符号和图像的再现。 本发明的目的是在熔融和清除点方面具有良好的性能,对热应力的稳定性,光,化学品和电场的作用以及颜色的丧失和它们的生产方法的向列型液晶物质。 该目的是通过创建新的向列液晶物质来实现的。 根据本发明,提出了具有通式“IMAGE”的1,3-二恶烷的液晶2,5-二取代衍生物,其中 + TR R2 = OR4,CnH2n + 1,R3 = Br,CN,CnH2n + 1和R4 = CnH2n + 1,其中n = 1至10.新物质可用于含有至少一种根据 发明。

    Nematic liquid crystals and method of production
    4.
    发明授权
    Nematic liquid crystals and method of production 失效
    向列型液晶及其生产方法

    公开(公告)号:US4519936A

    公开(公告)日:1985-05-28

    申请号:US400170

    申请日:1982-07-20

    摘要: The invention relates to nematic liquid crystals in electro-optical components for the modulation of light as well as for the representation of numerals, signs and images and to a method for producing the same.It is the object of the invention to create nematic liquid crystals which are well suited for electro-optical devices, preferably for two-frequency operation.It has been found that pure or mixed 2-n-alkyl-1, 4-bis-[4-acyloxy]-benzenes of the general formula ##STR1## wherein R.sup.3 =n-C.sub.m H.sub.2m+1, with m=3 to 14, are well suited for utilization in electro-optical components.It was found that 2-n-alkyl-1,4-bis-[acyloxy]-benzene which is well suited for electro-optical components, and especially for two-frequency operations, can be produced by the conversion of a correspondingly substituted benzoic acid or cyclohexane carboxylic acid or a reaction-capable derivative thereof with the corresponding 2-n-alkylhydroquinone--also in the form of its phenylate--at a temperature ranging from 0.degree. C. to 250.degree. C., possibly in the presence of an inert solvent.

    摘要翻译: 本发明涉及用于调制光的电光部件中的向列型液晶以及数字,符号和图像的表示及其制造方法。 本发明的目的是产生非常适合电光装置的向列液晶,优选用于双频操作。 已经发现,具有通式“IMAGE”的纯或混合的2-正 - 烷基-1,4-双[4-酰氧基] - 苯,其中R 3 = n-Cm H 2m + 1,m = 3至14, 非常适用于电光元件。 已经发现,非常适合于电光学部件,特别是用于双频操作的2-正烷基-1,4-双 - [酰氧基] - 苯可以通过相应地取代的苯甲酸 酸或环己烷羧酸或其反应能力的衍生物与相应的2-正烷基氢醌 - 也以其苯基酯的形式 - 在0℃至250℃的温度范围内,可能在 惰性溶剂。

    Esters of 4-[2,2-dicyano-ethenyl]-phenols
    5.
    发明授权
    Esters of 4-[2,2-dicyano-ethenyl]-phenols 失效
    4- [2,2-二氰基 - 乙烯基] - 苯酚的酯

    公开(公告)号:US4363767A

    公开(公告)日:1982-12-14

    申请号:US202958

    申请日:1980-10-03

    CPC分类号: C07C255/00 C09K19/42

    摘要: The invention relates to liquid-crystalline nematic mixtures which are used in electro-optical components, as well as to methods for their preparation.The object of the invention is liquid-crystalline mixtures for electro-optical arrangements possessing high positive electrical anisotropy at a high clarification point, as well as methods for their preparation.According to the invention, liquid-crystalline nematic mixtures are used, wherein at least one component is a 1,4-disubstituted benzene derivative and the other compound is an ester of 4-[2,2-dicyano-ethenyl]-phenol of the general formula ##STR1## wherein R.sup.1 denotes added groups of various characters such as alkyl or alkoxy for example, X is aromatic, cycloaliphatic or a heterocyclic ring system such as phenyl or cyclohexyl for example; and Y is a connector such as carbonyloxy, azomethine, azoxy.These are prepared by reaction with reactive acid derivatives, particularly acid chlorides, or by a Knoevenagel-condensation by reacting respective 4-subst.-benzoic acid-[4-formyl-phenyl esters] or 4-alkyl-cyclohexanecarboxylic acid-[4-formyl-phenyl esters] with malonic acid dinitrile.

    摘要翻译: 本发明涉及用于电光元件的液晶向列混合物及其制备方法。 本发明的目的是在高澄清点具有高正电各向异性的电光装置的液晶混合物及其制备方法。 根据本发明,使用液晶向列混合物,其中至少一种组分是1,4-二取代的苯衍生物,而另一种化合物是4- [2,2-二氰基 - 乙烯基] - 苯酚的酯 其中R1表示各种特征的加成基团,例如烷基或烷氧基,例如X是芳族的,脂环族的或杂环系统,例如苯基或环己基; 并且Y是诸如羰基氧基,偶氮甲碱基,偶氮氧基之类的连接体。 这些通过与各种4-取代苯甲酸 - [4-甲酰基 - 苯基酯]或4-烷基 - 环己烷甲酸 - [4-甲氧基苯基]酯反应而与反应性酸衍生物,特别是酰氯反应或通过Knoevenagel缩合反应制备, 甲酰基 - 苯基酯]与丙二酸二腈。

    Liquid crystalline substituted 1,3-dioxanes and mixtures containing these
    6.
    发明授权
    Liquid crystalline substituted 1,3-dioxanes and mixtures containing these 失效
    液晶取代的1,3-二恶烷和含这些的混合物

    公开(公告)号:US4348324A

    公开(公告)日:1982-09-07

    申请号:US102944

    申请日:1979-12-12

    CPC分类号: C09K19/3402 C09K2019/3422

    摘要: Liquid crystal substituted 1,3 dioxanes and mixtures containing the same.The invention relates to liquid crystalline substituted 1,3 dioxanes and substances containing the same, for electrooptical arrays for the modulation of incident or transmitted light as well as for the reproduction of figures, symbols and images.The objects of the invention are nematic crystal liquid substances with favorable properties with respect to melting and clear points; stability toward thermal stress, effect of light, chemicals and electric fields as well as loss of color; and processes for their production.The task is solved by the creation of new nematic liquid-crystal substances.As per invention, liquid crysalline 2,5-disubstituted derivatives of 1,3-dioxane of the general formula: ##STR1## are proposed, wherein: ##STR2## The new substances are used in mixtures containing at least one of the substances according to the invention.

    摘要翻译: 液晶取代1,3-二恶烷及含有它们的混合物。 本发明涉及液晶取代的1,3-二恶烷及其含有物质的物质,用于调制入射或透射光的电光阵列以及图形,符号和图像的再现。 本发明的目的是相对于熔点和澄清点具有良好性能的向列型液晶物质; 对热应力的稳定性,光的影响,化学品和电场以及颜色的丧失; 和生产过程。 通过创建新的向列液晶物质来解决这个任务。 根据本发明,提出了通式为:IMAGE的1,3-二恶烷的液体crysalline 2,5-二取代衍生物,其中:< IMAGE>< IMAGE> CnH2n + 1( CH 3)N,CN,NO 2,F,Cl,Br,NCCHCH,+ TR NCCH 2 CH 2,NCCH 2 R 2 = C n H 2n + 1; 哦; CN; OR4; OCOR4; OCOOR 4; + TR R3 = CnH2n + 1,CnH2n + 10,Cl,Br,CN,NO2,R4 = CnH2n + 1和n = 1至10.新物质用于含有至少一种物质的混合物 涉及本发明。