Liquid crystal mixtures
    5.
    发明授权
    Liquid crystal mixtures 失效
    液晶混合物

    公开(公告)号:US4395350A

    公开(公告)日:1983-07-26

    申请号:US279493

    申请日:1981-07-01

    摘要: Liquid crystal mixtures containing a coloring substance which comprise about 5 to about 40 weight % of trans-p-[5-(4-alkylcyclohexyl)-2-pyrimidinyl]benzonitriles, about 10 to about 60 weight % of trans-4-alkylcyclohexane carboxylic acid phenyl esters and about 0.1 to about 15 weight % of one or more coloring substances of the formula ##STR1## wherein m stands for the number 1 and X is alkoxy and Y is nitro; or m stands for the number 1 or 2; and X is p-alkoxyphenyl and Y is nitro or dialkylamino, or X is alkoxy and Y is -p-nitrophenyl or -(dialkylamino)phenyl; or m stands for the number 2, and X is alkoxy and Y is alkoxy, nitro or dialkylamino, or both X and Y are dialkylamino; and wherein the alkoxy denotes a straight-chain group containing 1 to 12 carbon atoms and the alkyl groups in the dialkylamino each denote a straight-chain alkyl group containing 1 to 4 carbon atoms are described.

    摘要翻译: 包含着色物质的液晶混合物,其包含约5至约40重量%的反式p- [5-(4-烷基环己基)-2-嘧啶基]苯腈,约10至约60重量%的反式-4-烷基环己烷羧酸 酸性苯基酯和约0.1至约15重量%的一种或多种式Ⅻ的着色物质,其中m代表数字1,X是烷氧基,Y是硝基; 或m代表数字1或2; X为对烷氧基苯基,Y为硝基或二烷基氨基,或X为烷氧基,Y为对硝基苯基或 - (二烷基氨基)苯基; 或m代表数2,X是烷氧基,Y是烷氧基,硝基或二烷基氨基,或者X和Y都是二烷基氨基; 并且其中所述烷氧基表示含有1至12个碳原子的直链基团,并且描述二烷基氨基中的烷基各自表示含有1至4个碳原子的直链烷基。

    Heterocyclic compounds
    6.
    发明授权
    Heterocyclic compounds 失效
    杂环化合物

    公开(公告)号:US4273929A

    公开(公告)日:1981-06-16

    申请号:US116518

    申请日:1980-01-29

    摘要: Pyrimidine derivatives of the formula ##STR1## wherein at least one of rings A and B is a trans-1,4-disubstituted cyclohexane ring and the other, optionally, may be aromatic and R is straight-chain alkyl or alkoxy of 1 to 10 carbon atoms or a branched-chain alkyl group of the formulas C.sub.2 H.sub.5 --CH(CH.sub.3)--(CH.sub.2).sub.n --wherein n is 1, 2 or 3, are described. Processes for the preparation of the compounds of formula I as well as their uses in liquid crystalline mixtures are also described.

    摘要翻译: 下式的嘧啶衍生物其中环A和B中的至少一个是反式-1,4-二取代的环己烷环,另一个任选地可以是芳族的,R是直链烷基或烷氧基, 10个碳原子或式C 2 H 5 -CH(CH 3) - (CH 2)n - 的支链烷基,其中n为1,2或3。 还描述了制备式I化合物的方法及其在液晶混合物中的用途。

    Meterocyclic compounds
    8.
    发明授权
    Meterocyclic compounds 失效
    元环化合物

    公开(公告)号:US4389329A

    公开(公告)日:1983-06-21

    申请号:US230074

    申请日:1981-01-30

    摘要: Pyrimidine derivatives of the formula ##STR1## wherein at least one of rings A and B is a trans-1,4-disubstituted cyclohexane ring and the other, optionally, may be aromatic and R is straight-chain alkyl or alkoxy of 1 to 10 carbon atoms or a branched-chain alkyl group of the formula C.sub.2 H.sub.5 --CH(CH.sub.3)--(CH.sub.2).sub.n -- wherein n is 1, 2 or 3, are described. Processes for the preparation of the compounds of formula I as well as their uses in liquid crystalline mixtures are also described.

    摘要翻译: 下式的嘧啶衍生物其中环A和B中的至少一个是反式-1,4-二取代的环己烷环,另一个任选地可以是芳族的,R是直链烷基或烷氧基, 10个碳原子或式C2H5-CH(CH3) - (CH2)n-的支链烷基,其中n为1,2或3。 还描述了制备式I化合物的方法及其在液晶混合物中的用途。

    Liquid crystal compounds and indicating device employing same
    9.
    发明授权
    Liquid crystal compounds and indicating device employing same 失效
    液晶化合物和使用其的指示装置

    公开(公告)号:US5013476A

    公开(公告)日:1991-05-07

    申请号:US121712

    申请日:1987-11-17

    摘要: A ferroelectric liquid crystal mixture containing at least one compound of the formula ##STR1## wherein n stands for the number 0 or 1; X.sup.1 represents a single covalent bond, --COO-- or --OOC-- and X.sup.2 represents a single covalent bond, --COO--, --OOC--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 -- or --CH.sub.2 O--; rings A.sup.1, A.sup.2 and A.sup.3 each independently signify 1,4-phenylene optionally substituted with cyano, halogen or lower alkyl or pyrimidin-2,5-diyl, pyrazin-2,5-diyl, when n is 1, trans-1,4-cyclohexylene or trans-m-dioxan-2,5-diyl; with the proviso that one of the rings present stands for pyrimidin-2,5-diyl or pyrazin-2,5-diyl when a further ring signifies trans-1,4-cyclohexylene or when n stands for the number 0 and X.sup.1 stands for a single covalent bond; and R.sup.1 signifies an optionally halogen-substituted alkenyl group with up to 18 carbon atoms in which optionally 1 or 2 non-adjacent CH.sub.2 groups are replaced by --O-- and/or a C.dbd.C double bond; with the proviso that R.sup.1 is different from 3,7-dimethyl-6-octenyloxy; R.sup.2 signifies an optionally halogen-substituted alkyl group with up to 18 carbon atoms in which optionally 1 or 2 non-adjacent CH.sub.2 groups are replaced by --O-- and/or a C.dbd.C double bond; with the proviso that residues R.sup.1 and/or R.sup.2 attached to an aromatic ring have at least 2 chain atoms between the aromatic ring and a C.dbd.C double bond present;as well as novel compounds falling under formula I and novel ferroelectric liquid crystal devices employing the compounds according to the invention.

    摘要翻译: 含有至少一种下式化合物的铁电液晶混合物,其中n代表数字0或1; X1表示单个共价键,-COO-或-OOC-,X2表示单个共价键,-COO - , - OOC - , - CH 2 CH 2 - , - OCH 2 - 或-CH 2 O-。 环A1,A2和A3各自独立地表示任选被氰基,卤素或低级烷基或嘧啶-2,5-二基,吡嗪-2,5-二基取代的1,4-亚苯基,当n为1时,反式-1,4 环己基或反式间二恶烷-2,5-二基; 条件是存在的一个环表示嘧啶-2,5-二基或吡嗪-2,5-二基,当另一个环表示反式-1,4-亚环己基或当n表示0时,X 1表示 单一共价键; 并且R 1表示任选具有至多18个碳原子的卤素取代的烯基,其中任选地1或2个不相邻的CH 2基团被-O-和/或C = C双键替代; 条件是R1不同于3,7-二甲基-6-辛烯氧基; R2表示任选具有至多18个碳原子的卤素取代的烷基,其中任选地1或2个不相邻的CH 2基团被-O-和/或C = C双键替代; 条件是连接到芳族环上的残基R1和/或R2在芳族环和存在的C = C双键之间具有至少2个链原子; 以及下式I中的新化合物和使用本发明化合物的新型铁电液晶装置。