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    Liquid-crystal alkenyltolan derivative, liquid-crystal composition, and liquid-crystal display element
    43.
    发明授权
    Liquid-crystal alkenyltolan derivative, liquid-crystal composition, and liquid-crystal display element 有权
    液晶链烯基二苯乙炔衍生物，液晶组合物和液晶显示元件

    公开(公告)号：US06333080B1

    公开(公告)日：2001-12-25

    申请号：US09242554

    申请日：1999-05-06

    申请人： Norio Tamura ,  Atsuko Fujita ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Norihisa Hachiya ,  Etsuo Nakagawa

    发明人： Norio Tamura ,  Atsuko Fujita ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Norihisa Hachiya ,  Etsuo Nakagawa

    IPC分类号： C09K1934

    CPC分类号： C09K19/18 ,  C07C69/75 ,  C07C255/50 ,  C07C255/54 ,  C07C255/55 ,  C07C2601/14 ,  C07D239/26 ,  C09K19/3059 ,  C09K19/3461 ,  Y10T428/10

    摘要： A liquid crystalline alkenyltolan derivative expressed by the general formula CtH2t−1—G—(CH2)m—A1—B1—(A2—B2)n—(A3—B3)p—A4—X wherein A1, A2, A3, and A4 independently represent a 1,4-cyclohexylene, 1,4-phenylene in which one or two hydrogen atoms may be replaced by a fluorine atom(s), dioxane-2,5-diyl, or pyrimidine-2,5-diyl group; B1, B2, and B3 independently represent a covalent bond, an 1,2-ethylene, 1,2-ethenylene, 1,2-ethynylene, oxymethylene, methylenoxy, carbonyloxy, or 1,4-butylene group provided that at least one of B1, B2, and B3 represents an 1,2-ethynylene group; G represents a covalent bond or an oxygen atom; CtH2t−1 represents an alkenyl group having t carbon atoms; n and p are each 0 or 1; and X represents an alkyl group having 1 to 10 carbon atoms. The derivative provides a liquid-crystal compound and a liquid-crystal composition which have high anisotropy, high elastic constant ratio, excellent comparability with other liquid-crystal compounds, and low viscosity and are chemically and physically stable.

    摘要翻译： 由通式为Al，A2，A3和A4表示的液晶链烯基二苯乙烯衍生物独立地表示其中一个或两个氢原子可被氟原子取代的1,4-亚环己基，1,4-亚苯基， 二恶烷-2,5-二基或嘧啶-2,5-二基; B1，B2和B3独立地表示共价键，1,2-亚乙基，1,2-亚乙烯基，1,2-亚乙炔基，甲醛亚甲基，亚甲氧基，羰氧基或1,4-亚丁基，条件是至少一个 B1，B2和B3表示1,2-亚乙炔基; G表示共价键或氧原子; CtH2t-1表示具有t个碳原子的烯基; n和p各自为0或1; X表示碳原子数1〜10的烷基。 该衍生物提供了具有高各向异性，高弹性常数比，与其它液晶化合物优异可比性和低粘度并且化学和物理稳定的液晶组合物和液晶组合物。

    Liquid crystalline compound containing fluorine atom substituted alkyl group(s) and a liquid crystal composition
    49.
    发明授权
    Liquid crystalline compound containing fluorine atom substituted alkyl group(s) and a liquid crystal composition 失效
    含氟原子取代的烷基的液晶化合物和液晶组合物

    公开(公告)号：US5702641A

    公开(公告)日：1997-12-30

    申请号：US576461

    申请日：1995-12-21

    申请人： Yasuhiro Haseba ,  Kazutoshi Miyazawa ,  Shuichi Matsui ,  Tomoyuki Kondo ,  Yasuyuki Goto ,  Etsuo Nakagawa ,  Shinichi Sawada

    发明人： Yasuhiro Haseba ,  Kazutoshi Miyazawa ,  Shuichi Matsui ,  Tomoyuki Kondo ,  Yasuyuki Goto ,  Etsuo Nakagawa ,  Shinichi Sawada

    IPC分类号： C07C22/08 ,  C07C25/18 ,  C07C43/225 ,  C09K19/04 ,  C09K19/30 ,  C09K19/42 ,  C09K19/46 ,  C09K19/52 ,  G02F1/13

    CPC分类号： C07C43/225 ,  C07C22/08 ,  C07C25/18 ,  C09K19/0403 ,  C09K19/3001 ,  C09K19/3003 ,  C09K19/3028 ,  C09K19/42 ,  C09K19/46 ,  C09K2019/0407 ,  C09K2019/0444

    摘要： A liquid crystalline compound exhibiting a large .DELTA..epsilon. value, an electrical and chemical stability and a superior compatibility with existing liquid crystalline compounds, a liquid crystal composition containing the same, and a liquid crystal display element constructed by using the composition are provided, which liquid crystalline compound is expressed by the formula (I), F--(CH.sub.2)n-E--(CH.sub.2 CH.sub.2).sub.k --G--(CH.sub.2 CH.sub.2).sub.l --L--(CH.sub.2 CH.sub.2).sub.m --Z--Q--Y (I) wherein n is an integer of 1 to 10; k, l and m each independently are an integer of 0 to 2; ring E is 1,4-cyclohexylene group or 1,4-phenylene group, wherein one or more H atoms on each six-membered ring may be replaced by F atom(s); G and L each independently is a covalent bond or 1,4-cyclohexylene group or 1,4-phenylene group, wherein one or more H atoms on each six-membered ring may be replaced by F atom(s); Q is covalent bond or --O--; Y is a fluoroalkyl group of 1 to 3C or F atom; but in the case where ring E is 1,4-cyclohexylene group and at least one of G and L is covalent bond, k+l+m.noteq.0, and in the case where Q is --O--, Y is not F atom.

    摘要翻译： 提供了具有大的DELTAε值，电化学稳定性和与现有液晶化合物的优异相容性的液晶化合物，含有该液晶化合物的液晶组合物和使用该组合物构成的液晶显示元件，该液体 结晶化合物由式（I）表示，F-（CH2）nE-（CH2CH2）kG-（CH2CH2）lL-（CH2CH2）mZQY（I）其中n是1至10的整数; k，l和m各自独立地为0〜2的整数; 环E是1,4-亚环己基或1,4-亚苯基，其中每个六元环上的一个或多个H原子可被F原子取代; G和L各自独立地为共价键或1,4-亚环己基或1,4-亚苯基，其中每个六元环上的一个或多个H原子可被F原子取代; Q是共价键或-O-; Y为1〜3或氟原子的氟代烷基; 但是在环E为1,4-亚环己基并且G和L中的至少一个为共价键的情况下，k + 1 + m为“0”，在Q为-O-的情况下，Y为F原子 。

    Liquid crystalline compound and liquid crystal
    50.
    发明授权
    Liquid crystalline compound and liquid crystal 失效
    液晶化合物和液晶

    公开(公告)号：US5670085A

    公开(公告)日：1997-09-23

    申请号：US588434

    申请日：1996-01-18

    申请人： Kazutoshi Miyazawa ,  Shuichi Matsui ,  Yasuyuki Goto ,  Etsuo Nakagawa ,  Shinichi Sawada

    发明人： Kazutoshi Miyazawa ,  Shuichi Matsui ,  Yasuyuki Goto ,  Etsuo Nakagawa ,  Shinichi Sawada

    IPC分类号： C07C17/16 ,  C07C17/26 ,  C07C22/08 ,  C07C25/18 ,  C07C25/24 ,  C07C43/215 ,  C07C43/225 ,  C09K19/30 ,  C09K19/42 ,  C09K19/52 ,  C07C25/13 ,  G02F1/13

    CPC分类号： C07C17/16 ,  C07C17/2637 ,  C07C22/08 ,  C07C25/18 ,  C07C25/24 ,  C07C43/215 ,  C07C43/225 ,  C09K19/30 ,  C09K19/3098 ,  C09K19/42 ,  C07C2101/14 ,  C07C2101/16 ,  Y10T428/10

    摘要： A liquid crystalline compound expressed by the formula ##STR1## wherein R.sub.1 represents an alkyl group of 1 to 12 carbon atoms, and one or two not adjacent CH.sub.2 group excluding the terminal in this group may be replaced by --CO-- group, --OCO-- group, --COO-- group or --CH.dbd.CH group; X and Z each represents H, F or Cl; Y represents perfluoroalkyl group or perfluoroalkyloxy group of 1 to 4 carbon atoms, and one or two F atoms in this group may be replaced by H; one of A, B and C represents cyclohexene ring and the others thereof are chosen from among covalent bond or cyclohexane group and benzene ring and these rings may be substituted by F or Cl; and l, m and n each are 0 or 1, independently of each other, but when m=0, then l=0. Effectiveness It is possible to provide a liquid crystal composition having a large .DELTA.n, a low viscosity and a high voltage-holding ratio, and exhibiting a nematic liquid crystal phase within a broad temperature range and having a very high .DELTA..epsilon. and a low driving voltage, and preferably used for TFT. Further it is possible to provide a novel liquid crystalline compound preferred as a component for the liquid crystal composition.

    摘要翻译： 由式（1）表示的液晶化合物可以被-CO-基团取代，其中R 1表示1〜12个碳原子的烷基，除了该基团末端以外的一个或两个不相邻的CH2基团， -COO-基，-COO-基或-CH = CH基; X和Z各自表示H，F或Cl; Y表示1〜4个碳原子的全氟烷基或全氟烷氧基，该基团中的一个或两个F原子可以被H代替; A，B和C之一表示环己烯环，其它选自共价键或环己烷基和苯环，这些环可被F或Cl取代; 并且l，m和n各自为0或1，彼此独立，但是当m = 0时，则l = 0。 有效性可以提供具有大的DELTA n，低粘度和高电压保持率的液晶组合物，并且在宽的温度范围内显示向列型液晶相并具有非常高的DELTAε和低驱动 电压，最好用于TFT。 此外，可以提供作为液晶组合物的成分优选的新型液晶化合物。