Lactic acid derivative and liquid crystal composition containing same
    32.
    发明授权
    Lactic acid derivative and liquid crystal composition containing same 失效
    含有乳酸衍生物和液晶组合物

    公开(公告)号:US4882085A

    公开(公告)日:1989-11-21

    申请号:US291325

    申请日:1988-12-28

    摘要: An optically active lactic acid derivative represented by the following formula (I): ##STR1## wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 to 18 carbon atoms; C* represents an asymmetric carbon atom; l is 0 or 1; m is 1 or 2; A represents a group selected from the following groups (a) and (b):(a) hydroxyl group, halogen, benzyloxy group, phenoxy group, toluenesulfonic acid group, acetyloxy group trifluoroacetyloxy group; ##STR2## (wherein R' is an alkyl group or alkoxy group having 4 to 18 carbon atoms, n is 0 or 1, ##STR3## with proviso that when A is selected from the group in the above group (a), l is 1 and m is 1 or 2; and when A is selected from the groups in the above group (b), m=n=1 when l is 0, or m and n are 0, 1 or 2 and m+n is 1 or 2 when l is 1, and ##STR4##

    摘要翻译: 由下式(I)表示的光学活性乳酸衍生物:其中R表示具有1至18个碳原子的直链,支链或环状饱和或不饱和烃基; C *表示不对称碳原子; l为0或1; m为1或2; A表示选自以下组(a)和(b)中的基团:(a)羟基,卤素,苄氧基,苯氧基,甲苯磺酸基,乙酰氧基三氟乙酰氧基; (其中R'为具有4至18个碳原子的烷基或烷氧基,n为0或1,条件是当A选自上述组(a)中时,l为 1和m为1或2;当A选自上述组(b)中的基团时,当l为0时,m = n = 1,或m和n为0,1或2,m + n为1 或当l为1时为2,而

    Optically active compound and liquid crystal composition containing same
    33.
    发明授权
    Optically active compound and liquid crystal composition containing same 失效
    含有其的光学活性化合物和液晶组合物

    公开(公告)号:US4816178A

    公开(公告)日:1989-03-28

    申请号:US42814

    申请日:1987-04-27

    摘要: An optically active 4-alkylbenzenethiol and an optically active bis(4-alkylphenyl)disulfide represented by the formula: ##STR1## respectively, wherein R.sub.1 * and R.sub.2 * are respectively an alkyl group having 4-12 carbon atoms including an asymmetric carbon atom, may be prepared, e.g., through halogenation or sulfonation of an optically active alcohol, followed by reaction with a phenylmagnesium halide, chlorosulfonylation and reduction. The optically active thiol or disulfide is effective, e.g., in preventing occurrence of reverse domain when added to a nematic liquid crystal, and also can be bonded to an intermediate to provide a functional material including a mesomorphic compound represented by the formula: ##STR2## wherein R.sub.3 is an alkyl or alkoxy group having 1-18 carbon atoms, n is 1 or 2, and C* is an asymmetric carbon atom.

    摘要翻译: 分别由下式表示的光学活性4-烷基苯硫酚和光学活性双(4-烷基苯基)二硫化物:其中R1 *和R2 *分别是具有4-12个碳原子的烷基,包括 不对称碳原子,可以通过例如通过光学活性醇的卤化或磺化,然后与苯基卤化镁反应,氯磺酰化和还原来制备。 光学活性硫醇或二硫化物是有效的,例如在加入向列型液晶时防止反向结构域的发生,并且还可以与中间体结合,从而提供包括由下式表示的介晶化合物的功能材料:< IMAGE> 其中R3是具有1-18个碳原子的烷基或烷氧基,n是1或2,C *是不对称碳原子。

    Liquid crystal device
    34.
    发明授权
    Liquid crystal device 失效
    液晶装置

    公开(公告)号:US4712872A

    公开(公告)日:1987-12-15

    申请号:US714618

    申请日:1985-03-21

    IPC分类号: G02F1/137 G02F1/13

    CPC分类号: G02F1/13781 Y10S359/90

    摘要: A liquid crystal device in which there is provided an element having a nonlinear voltage-current characteristic for each of picture elements of a matrix electrode construction in which the picture elements are defined at respective intersections between a scanning electrode group and a signal electrode group intercrossing the scanning electrode group and a ferroelectric liquid crystal is interposed between the scanning electrode group and the signal electrode group.

    摘要翻译: 一种液晶装置,其中为矩阵电极结构的每个像素提供具有非线性电压电流特性的元件,其中像素被定义在扫描电极组和信号电极组之间的交叉处 扫描电极组和铁电液晶插入在扫描电极组和信号电极组之间。

    Non linear optical material and method for orientation thereof
    39.
    发明授权
    Non linear optical material and method for orientation thereof 失效
    非线性光学材料及其取向方法

    公开(公告)号:US5626797A

    公开(公告)日:1997-05-06

    申请号:US387615

    申请日:1995-02-13

    IPC分类号: G02F1/361 F21V9/00 G02F1/35

    CPC分类号: G02F1/3615

    摘要: A nonlinear optical material comprises a solid solution of an organic guest compound having an electron donative group or an electron attractive group. The organic guest compound is contained in the nonlinear optical material preferably an oriented form through orientation under melting by application of a DC electric field. The guest compound is preferably a para-di-substituted benzene derivative represented by the formula: ##STR1## wherein A is an electron donative group and B is an electron attractive group.

    摘要翻译: 非线性光学材料包括具有给电子基团或吸电子基团的有机客体化合物的固溶体。 非线性光学材料中的有机客体化合物优选通过施加直流电场在熔融下通过取向而定向。 客体化合物优选为由下式表示的对二取代的苯衍生物:其中A是给电子基团,B是吸电子基团。

    Polymeric liquid-crystal compound, polymeric liquid-crystal composition,
and polymeric liquid-crystal device
    40.
    发明授权
    Polymeric liquid-crystal compound, polymeric liquid-crystal composition, and polymeric liquid-crystal device 失效
    聚合物液晶化合物,聚合物液晶组合物和聚合物液晶装置

    公开(公告)号:US5614125A

    公开(公告)日:1997-03-25

    申请号:US820806

    申请日:1992-01-15

    摘要: The present invention provides a polymeric liquid-crystal compound having a repeating unit represented by Formula (I) ##STR1## wherein U represents a polymer main chain; V represents --(CH.sub.2).sub.m --, --((CH.sub.2).sub.2 --O).sub.m -- or --(CH.sub.2).sub.n --((CH.sub.2).sub.2 --O).sub.p --, one or more of methylene hydrogen atoms of which may be substituted with an alkyl group, a halogen atom, a cyano group, an amino group or a carbonyl group, and m, n and p each represents an integer of 0 to 30; W represents a single bond, --O--, --OCO--, --COO--, --CONR.sup.1 --, --CO-- or --NR.sup.1, where R.sup.1 represents a hydrogen atom or an alkyl group; X represents two or more rings of a substituted or unsubstituted aliphatic ring or aromatic ring of benzene ring, heteroaromatic ring or condensed ring, which rings are bonded through a single bond, --O--, --OCO--, --COO--, --(CH.sub.2).sub.q --, --N.dbd.N--, --(CH.dbd.CH).sub.q --, --CH.dbd.N--, --(C.tbd.C).sub.q --, --CONR.sup.1 --, --(CO).sub.q --, or --NR.sup.1 --, where q represents an integer of 1 to 10; Y represents a substituted or unsubstituted alkyl group; and the mark * represents an asymmetric carbon atom.

    摘要翻译: 本发明提供具有由式(I)表示的重复单元的聚合物液晶化合物,其中U表示聚合物主链; V表示 - (CH 2)m - , - ((CH 2)2 -O)m - 或 - (CH 2)n - ((CH 2)2 -O)p - ,其一个或多个亚甲基氢原子可被取代 具有烷基,卤原子,氰基,氨基或羰基,m,n和p各自表示0〜30的整数, W表示单键,-O - , - OCO - , - COO - , - CONR 1 - , - CO-或-NR 1,其中R 1表示氢原子或烷基; X表示取代或未取代的苯环,杂芳环或稠环的脂族环或芳环的两个或多个环,该环通过单键键合-O - , - OCO - , - COO - , - (CH 2 )q-,-N = N-, - (CH = CH)q - , - CH = N - , - (C 3BOND C)q - , - CONR1-, - (CO)q-或-NR1- 其中q表示1〜10的整数; Y表示取代或未取代的烷基; 标记*表示不对称碳原子。