Method for chemically producing poly(N-alkylcarbazole) columnar structure
    2.
    发明授权
    Method for chemically producing poly(N-alkylcarbazole) columnar structure 有权
    化学生产聚(N-烷基咔唑)柱状结构的方法

    公开(公告)号:US08609796B2

    公开(公告)日:2013-12-17

    申请号:US13517616

    申请日:2012-06-14

    IPC分类号: C08F26/06

    CPC分类号: C08F126/06

    摘要: A novel nanosized or microsized material having electroconductivity that can be produced simply and in a large amount is provided. A method for producing a poly(N-alkylcarbazole) columnar structure having electroconductivity obtained by chemically polymerizing N-alkylcarbazole including alkyl having 1 to 4 carbons by adding an oxidizing agent to a solution obtained by dissolving the N-alkylcarbazole in a solvent is provided.

    摘要翻译: 提供了具有可以简单且大量生产的具有导电性的新型纳米尺寸或微尺寸材料。 提供了通过在通过将N-烷基咔唑溶解在溶剂中获得的溶液中加入氧化剂来制备具有导电性的聚(N-烷基咔唑)柱状结构的方法,该聚(N-烷基咔唑)柱状结构通过将包括具有1至4个碳的烷基的N-烷基咔唑化学聚合而获得的导电性。

    Liquid crystal composition and liquid crystal display device
    5.
    发明授权
    Liquid crystal composition and liquid crystal display device 失效
    液晶组成和液晶显示装置

    公开(公告)号:US5837161A

    公开(公告)日:1998-11-17

    申请号:US822688

    申请日:1997-03-24

    摘要: Liquid crystal compositions having a small value of .gamma. (V.sub.10 /V.sub.90) and a small .tau. (fast response speed) in order to cope especially with high speed response, while satisfying various characteristics required of STN display mode. These compositions comprise at least one compound expressed by formula (I) as a first component; expressed by any one of formulas (II-a) to (II-d) as a second component; and expressed by formula (III) or (IV) as a third component; and as a fourth component, a chiral component in the amount necessary for maintaining the ratio d/P of the cell thickness d (.mu.m) to the pitch length of twist P (.mu.m) in the range of 0.4 to 0.6 when the liquid crystal composition is used for liquid crystal display devices. ##STR1## wherein R.sup.1 to R.sup.9 represent an alkyl group having 1 to 10 carbon atoms; Z.sup.0 to Z.sup.4 represent, for example, --CH.sub.2 CH.sub.2 --; A.sup.1 to A.sup.4, B, C, E, and G independently represent, for example, 1,4-cyclohexylene or 1,4-phenylene; D represents 1,4-cyclohexylene or 1,3-pyrimidine-2,5-diyl; Q.sup.1 represents H or F; and q and m are independently 0 or 1.

    摘要翻译: 在满足STN显示模式所要求的各种特性的同时,为了特别应对高速响应,具有较小的伽马值(V10 / V90)和小的tau(快速响应速度)的液晶组合物。 这些组合物包含至少一种由式(I)表示的化合物作为第一组分; 由式(II-a)至(II-d)中的任一个表示作为第二组分; 并由式(III)或(IV)表示为第三组分; 作为第四成分,将液体厚度d(μm)的比d / P与捻数P(μm)的间距长度保持在0.4〜0.6的范围内所需的量的手性成分, 液晶组合物用于液晶显示装置。 (II-c)(II-c)(II-c)(II-c)(II-d)R6(B)Z2(C)R7(Ⅲ) R8(D)Z3(E)Z4(G)R9(IV)其中R1至R9表示具有1-10个碳原子的烷基; Z 0〜Z 4表示例如-CH 2 CH 2 - ; A1至A4,B,C,E和G独立地表示例如1,4-亚环己基或1,4-亚苯基; D代表1,4-亚环己基或1,3-嘧啶-2,5-二基; Q1表示H或F; q和m独立地为0或1。

    Ferroelectric liquid crystal composition
    8.
    发明授权
    Ferroelectric liquid crystal composition 失效
    铁电液晶组成

    公开(公告)号:US5427714A

    公开(公告)日:1995-06-27

    申请号:US096848

    申请日:1993-07-26

    CPC分类号: C07D239/26 C09K19/3463

    摘要: A ferroelectric liquid crystal composition having a SC* phase and a light-switching element using the composition are provided, which composition comprises the following components, A, B and C, each in a specified proportion: Component A has the formula ##STR1## wherein ##STR2## R.sup.1 and R.sup.2 are same or different linear or branched alkyl, alkoxy or alkanoyloxy of 1-18C, X is H, halogen or CN, l, m and n are 0 or 1 and (l+m+n) is 1 or 2, and has smectic C phase;Component B has the formula ##STR3## wherein ##STR4## Y is H, halogen or CN, k is 0 or 1, R.sup.3 is linear or branched alkyl or alkoxy of 1-18C, and * is asymmetric C, and consists of optically active compounds having the same senses of Ps in SC* phase induced when dissolved in smectic C liquid crystal, to one another; andComponent C has the formula ##STR5## wherein ##STR6## Z is H, halogen or CN, R.sup.5 and R.sup.6 are same or different linear or branched alkyl or alkoxy of 1-18C R.sup.4 is 12-18C alkyl or 1-18C linear or branched alkoxy, and * is asymmetric C, and is an optically active compound having the same sense of Ps in SC* phase induced when dissolved in smectic C liquid crystal as that of the compound of component B.

    摘要翻译: 提供具有SC *相的铁电液晶组合物和使用该组合物的光开关元件,该组成包含以下组分,A,B和C各自为特定比例:组分A具有式“IMAGE”( A)其中R1和R2是1-18C的相同或不同的直链或支链烷基,烷氧基或烷酰氧基,X是H,卤素或CN,l,m和n是0或1,并且(1+ m + n)为1或2,具有近晶C相; 组分B具有式(B)其中或CN,k为0或1,R3为1-18C的直链或支链烷基或烷氧基,*为不对称C,并由具有 在溶解在近晶C液晶中时,在SC *相中诱导的Ps的相同感觉; 并且组分C具有其中 的公式(C)

    Ferroelectric liquid crystal composition
    9.
    发明授权
    Ferroelectric liquid crystal composition 失效
    铁电液晶组成

    公开(公告)号:US5240638A

    公开(公告)日:1993-08-31

    申请号:US908854

    申请日:1992-07-01

    IPC分类号: C09K19/02 C09K19/34 C09K19/46

    摘要: A ferroelectric liquid crystal composition comprising smectic liquid crystal composition(s) and optically active compounds and having a spontaneous polarization value of 20 nC cm.sup.-2 or less and nevertheless having high rate response properties, and a light-switching element are provided, which composition comprises the following components (A), (B), (C) and (D), in 76-95, 2-10, 1-6 and 2-8 wt.%, respectively, based on the total quantity of the 4 components:(A): at least one compound of the formula ##STR1## wherein R.sup.1 and R.sup.2 are the same or different, being 1-18C alkyl, or the formula ##STR2## wherein R.sup.3 and R.sup.4 are the same or different, being 1-18C alkyl or alkoxy and having smectic C phase:(B): an optically active compound of the formula ##STR3## wherein R.sup.5 is 1-18C alkyl or alkoxy, X is ##STR4## Y is halogen or H and * is asymmetric C atom; (C): at least one optically active compound of the formulas ##STR5## wherein R.sup.6 and R.sup.8 are 1-18C alkyl or alkoxy, R.sup.7 and R.sup.9 are 2-18C alkyl or alkoxy and * is an asymmetric C atom; and(D): at least on optically active compound formula ##STR6## wherein R.sup.10 is 1-18 C alkyl or alkoxy, Z is H or halogen and * is an asymmetric C atom.

    摘要翻译: 提供了包含近晶型液晶组合物和光学活性化合物并且具有20nC cm -2以下的自发极化值并且具有高速率响应特性的铁电液晶组合物和光开关元件,该组成 包括以下组分(A),(B),(C)和(D),分别为76-95,2-10,1-6和2-8重量%,基于4 组分:(A):至少一种式(I)的化合物,其中R 1和R 2相同或不同,为1-18C烷基或式(II),其中R 3和R 4为 相同或不同的是1-18C烷基或烷氧基并具有近晶C相:(B):下式的光学活性化合物其中R5是1-18C烷基或烷氧基,X是Y 是卤素或H,*是不对称C原子; (IV)2a或图像(IV)中的至少一种光学活性化合物(IV-1a)图像(IV-1b) (IV-2b)其中R6和R8为1-18C烷基或烷氧基,R7和R9为2-18C烷基或烷氧基,*为不对称C原子; 和(D):至少在光学活性化合物式“IMAGE”,1CHC2H5 + RE(V)其中R10为1-18C烷基或烷氧基,Z为H或卤素,*为不对称C原子。

    Liquid crystal composition and liquid crystal display device
    10.
    发明授权
    Liquid crystal composition and liquid crystal display device 有权
    液晶组成和液晶显示装置

    公开(公告)号:US06495219B1

    公开(公告)日:2002-12-17

    申请号:US09670687

    申请日:2000-09-28

    IPC分类号: C09K1930

    摘要: Liquid crystal compositions are disclosed which have low threshold voltage, small temperature dependence of the threshold voltage, high stability against heat and ultraviolet rays, and small frequency dependence of dielectric anisotropy (&Dgr;∈) at low temperature while fulfilling general characteristics required for STN mode materials, characterized by comprising the compound expressed by formula (1) wherein R1 represents alkyl having 1 to 10 carbon in which one methylene may be replaced by —O— or —CH═CH—; X1 and X2 each independently represents H or F.

    摘要翻译: 公开了具有低阈值电压,阈值电压的温度依赖性小,对热和紫外线的高稳定性以及低温下介电各向异性(DELTA)的小频率依赖性的液晶组合物,同时满足STN模式材料所需的一般特性 其特征在于包含由式(1)表示的化合物,其中R 1表示具有1至10个碳的烷基,其中一个亚甲基可被-O-或-CH = CH-取代; X1和X2各自独立地表示H或F.