Liquid crystal compounds and indicating device employing same
    1.
    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。

    Ferroelectric liquid crystal mixtures and compounds as well as
electro-optical devices employing same
    2.
    发明授权
    Ferroelectric liquid crystal mixtures and compounds as well as electro-optical devices employing same 失效
    电化学液晶混合物和化合物作为使用其的电光设备

    公开(公告)号:US5100577A

    公开(公告)日:1992-03-31

    申请号:US464610

    申请日:1990-01-11

    摘要: A ferroelectric liquid crystalline mixture containing at least one optically active compound of the general formula ##STR1## wherein X.sup.1 denotes a single covalent bond, --COO--, --OOC--, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 -- or --CH.sub.2 O--; one of rings A.sup.1, A.sup.2 and A.sup.3 represents trans-m-dioxan-2,5-diyl and the other two of rings A.sup.1, A.sup.2 and A.sup.3 each independently represent unsubstituted 1,4-phenylene or 1,4-phenylene substituted with cyano, halogen or lower alkyl; R.sup.1 and R.sup.2 each independently signify an optionally halogen-substituted alkyl group with up to 18 carbon atoms in which optionally 1 CH.sub.2 group or 2 non-adjacent CH.sub.2 groups is/are replaced by --O--, --CO--, --COO-- and/or --OOC--,as well as novel compounds falling under formula I and ferroelectric electrode-optical indicating devices including same.

    摘要翻译: 含有至少一种通式为I的光学活性化合物的铁电液晶混合物,其中X1表示单个共价键,-COO-,-OOC - , - CH 2 CH 2 - , - OCH 2 - 或-CH 2 O-; 环A 1,A 2和A 3中的一个表示反式间二恶烷-2,5-二基,环A1,A2和A3中的另外两个各自独立地表示被氰基取代的未取代的1,4-亚苯基或1,4-亚苯基, 卤素或低级烷基; R1和R2各自独立地表示具有至多18个碳原子的任选卤素取代的烷基,其中任选地1个CH 2基团或2个不相邻的CH 2基团被-O-,-CO-,-COO-和/ 或-OOC-,以及下式I的新型化合物和包括其的铁电电极 - 光学指示装置。

    Liquid crystalline esters
    3.
    发明授权
    Liquid crystalline esters 失效
    液晶酯

    公开(公告)号:US5082589A

    公开(公告)日:1992-01-21

    申请号:US485710

    申请日:1990-02-27

    IPC分类号: C07C69/773 C09K19/30

    CPC分类号: C07C255/00 C09K19/3068

    摘要: Compounds of the formula ##STR1## wherein m represents is the number of 0 to 1; A is a single convalent bond, --CH.sub.2 --CH.sub.2 --, --OCH.sub.2 --, --COO-- or --OOC--; rings B, C and D are 1,4-phenylene optionally substituted with cyano, halogen or lower alkyl; Y.sup.1 and Y.sup.2 are hydrogen or one of them also is cyano; and R.sup.1 and R.sup.2 each represents C.sub.1 -C.sub.18 -alkyl or C.sub.2 -C.sub.18 alkenyl, either of which is optionally halogen-substituted, in which one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are optionally replaced by oxygen: with the provisos that at least one of R.sup.1 and R.sup.2 has a chiral carbon atom or R.sup.1 is straight-chain C.sub.4-18 -alkoxy and R.sup.2 is straight C.sub.3-18 -alkyl or a C--C double bond or both when A is --COO-- and at least one of R.sup.1 and R.sup.2 has a C--C double bond when A is a single covalent bond, their preparation, liquid crystalline mixtures containing these compounds and their use for electro-optical purposes are described.

    摘要翻译: 式(Ⅰ)化合物其中m表示0至1的数; A是单个共价键,-CH 2 -CH 2 - , - OCH 2 - , - COO-或-OOC-; 环B,C和D是任选被氰基,卤素或低级烷基取代的1,4-亚苯基; Y1和Y2是氢或其中之一也是氰基; 并且R 1和R 2各自表示任选被卤素取代的C 1 -C 18 - 烷基或C 2 -C 18烯基,其中一个CH 2基团或两个不相邻的CH 2基团任选被氧取代:条件是 R 1和R 2中的至少一个具有手性碳原子,或者R 1是直链C 4-18 - 烷氧基,并且R 2是直链C 3-8 - 烷基或CC双键,或者当A是-COO-时, 当A是单一共价键时,R1和R2具有CC双键,其制备,含有这些化合物的液晶混合物及其用于电光目的的用途。

    Liquid crystalline esters
    4.
    发明授权
    Liquid crystalline esters 失效
    液晶酯

    公开(公告)号:US4830470A

    公开(公告)日:1989-05-16

    申请号:US52659

    申请日:1987-05-20

    CPC分类号: C07C255/00 C09K19/3068

    摘要: Compounds of the formula ##STR1## wherein m represents is the number 0 or 1; A is a single covalent bond, --CH.sub.2 --CH.sub.2 --, --OCH.sub.2 --, --COO-- or --OOC--; rings B, C and D are 1,4-phenylene optionally substituted with cyano, halogen or lower alkyl; Y.sup.1 and Y.sup.2 are hydrogen or one of them also is cyano; and R.sup.1 and R.sup.2 each represents C.sub.1 -C.sub.18 -alkyl or C.sub.2 -C.sub.18 alkenyl, either of which is optionally halogen-substituted, in which one CH.sub.2 group or two non-adjacent CH.sub.2 groups is/are optionally replaced by oxygen; with the provisos that at least one of R.sup.1 and R.sup.2 has a chiral carbon atom or a C--C double bond or both when A is --COO-- and at least one of R.sup.1 and R.sup.2 has a C--C double bond when A is a single covalent bond, their preparation, liquid crystalline mixtures containing these compounds and their use for electro-optical purposes are described.

    摘要翻译: 式(Ⅰ)化合物其中m代表0或1; A是单个共价键,-CH 2 -CH 2 - , - OCH 2 - , - COO-或-OOC-; 环B,C和D是任选被氰基,卤素或低级烷基取代的1,4-亚苯基; Y1和Y2是氢或其中之一也是氰基; 并且R 1和R 2各自表示任选被卤素取代的C 1 -C 18 - 烷基或C 2 -C 18烯基,其中一个CH 2基团或两个不相邻的CH 2基团任选被氧代替; 条件是当A是-COO-时,R 1和R 2中的至少一个具有手性碳原子或CC双键,当A是单个共价键时,R 1和R 2中的至少一个具有CC双键, 描述了它们的制备方法,含有这些化合物的液晶混合物及其用于电光学目的的用途。