Liquid crystalline ester compounds and mixtures thereof
    31.
    发明授权
    Liquid crystalline ester compounds and mixtures thereof 失效
    液晶酯化合物及其混合物

    公开(公告)号:US4834907A

    公开(公告)日:1989-05-30

    申请号:US4815

    申请日:1987-01-08

    摘要: Novel chiral smectic liquid crystalline ester compounds having a superior stability and exhibiting a high response rate when used in the form of display elements and chiral smectic mixtures containing at least one of these compounds are provided, which compounds are expressed by the formula ##STR1## wherein n is an integer of 2 to 16; l is 0, 1 or 2; m is 1 or 2 under the condition of l+m.gtoreq.2; X represents methylene group --CH.sub.2 -- or single bond when l is zero, methylene group --CH.sub.2 -- or ether linkage --O-- when l=1 or ether linkage --O-- when l=2; and Y represents R, OR, --COR, --OCOR, --OCOOR or --COOR wherein R throughout represents an alkyl group of 1 to 18 carbon atoms; and asterisk * shows an optically active carbon atom.

    摘要翻译: 提供了具有优异稳定性并以显示元件形式使用并且含有至少一种这些化合物的手性近晶混合物时具有高响应率的新型手性近晶液晶酯化合物,该化合物由下式表示:其中 n为2〜16的整数。 l为0,1或2; 在l + m> / = 2的条件下,m为1或2; 当l = 1时,X表示亚甲基-CH 2 - 或单键,当l = 1时为亚甲基-CH 2 - 或醚键-O-,当l = 2时,表示醚键-O-; 并且Y表示R,OR,-COR,-OCOR,-OCOOR或-COOR,其中R全部表示1至18个碳原子的烷基; 星号*表示光学活性碳原子。

    Liquid-crystalline vinyl ketone derivatives and their polymers
    40.
    发明授权
    Liquid-crystalline vinyl ketone derivatives and their polymers 有权
    液晶乙烯基酮衍生物及其聚合物

    公开(公告)号:US07357964B2

    公开(公告)日:2008-04-15

    申请号:US10664671

    申请日:2003-09-17

    摘要: Provided is a liquid-crystalline, polymerizable vinyl ketone compound of formula (1): Preferably, R1 is hydrogen, halogen, —CN, —CF3, —CF2H, —CFH2, —OCF3, —OCF2H, or alkyl, alkoxy, alkoxyalkyl or alkenyl having from 1 to 10 carbon atoms; R2, R3 and R5 are hydrogen; A1 to A4 are independently 1,4-cyclohexylene, 1,4-cyclohexenylene or 1,4-phenylene where any hydrogen may be substituted with halogen; Z1 to Z3 are independently a single bond, —(CH2)2—, —CH═CH—, —CF═CF—, —OCF2— or —CF2O—; Z4 is a single bond, —(CH2)3— or —(CH2)4—; m, n and q are independently 0, 1 or 2. The uppermost temperature of the liquid crystalline phase of the compound is high, and the compound has good compatibility with other compounds and has the necessary characteristics such as optical anisotropy. Also provided are a polymer having many good characteristics of transparency, mechanical strength, coatability, solubility, crystallinity, shrinkage, water permeability, water absorption, melting point, glass transition point, clearing point and chemical resistance; an optically-anisotropic material of the polymer; a liquid-crystal display device that comprises the polymer; and a method for producing the liquid-crystalline compound.

    摘要翻译: 提供式(1)的液晶可聚合乙烯基酮化合物:优选R 1是氢,卤素,-CN,-CF 3,-CF 3, H 2,-CF 2 H 2,-OCF 3,-OCF 2 H或烷基,烷氧基,烷氧基烷基或 具有1至10个碳原子的烯基; R 2,R 3和R 5是氢; A 4 S 4独立地是1,4-亚环己基,1,4-亚环己基或1,4-亚苯基,其中任何氢可以被卤素取代; Z 1至Z 3独立地为单键, - (CH 2)2 - , - CH- CH-,-CF-CF-,-OCF 2 - 或-CF 2 O-; Z 4是单键, - (CH 2 CH 2)3 - 或 - (CH 2 2 N) 4 - ; m,n和q独立地为0,1或2.化合物的液晶相的最高温度高,并且该化合物与其它化合物具有良好的相容性,并且具有必要的光学各向异性特性。 还提供了具有透明性,机械强度,可涂布性,溶解性,结晶度,收缩率,透水性,吸水性,熔点,玻璃化转变点,清除点和耐化学性等许多良好特性的聚合物。 聚合物的光学各向异性材料; 包含聚合物的液晶显示装置; 和液晶化合物的制造方法。