Polyhaloalkyl ether derivatives as well as liquid crystal compositions and liquid crystal display elements containing them
    3.
    发明授权
    Polyhaloalkyl ether derivatives as well as liquid crystal compositions and liquid crystal display elements containing them 有权
    多卤烷基醚衍生物以及含有它们的液晶组合物和液晶显示元件

    公开(公告)号:US06187223B1

    公开(公告)日:2001-02-13

    申请号:US09335783

    申请日:1999-06-18

    IPC分类号: C09K1930

    摘要: A compound expressed by the general formula (1): wherein R1 denotes an alkyl group having from 1 to 20 carbon atoms in which one or more methylene groups in said group may be replaced by oxygen atoms or —CH═CH— and one or more hydrogen atoms in said group may be replaced by flourine or chlorine atoms, with the proviso that two or more methylene groups may not be continuously replaced by oxygen atoms, Y1 denotes an alkoxy group having 1 to 5 carbon atoms, in which at least one hydrogen atom is replaced by a fluorine atom and one or more hydrogen atoms may be further replaced by chlorine atoms, Z1, Z2 and Z3 each independently denote a covalent bond, —CH2CH2—, —CH═CH—, —COO— or —CF2)—, with the proviso that at least one of Z1, Z2 and Z3 is —COO— or —CF2O—, rings A1, A2, A3 and A4 each independently denote trans-1,4-cyclohexylene, 3-cyclohexen-1,4-ylene, 3-fluoro-3-cyclohexen-1,4-ylene, pyrimidine-2,5-diyl, 1,3-dioxan-2,5-diyl, trans-1-sila-1,4-cyclohexylene, trans-4-sila-1,4-cyclohexylene, or 1,4-phenylene in which one or more hydrogen atoms may be replaced by fluorine atoms or chlorine atoms, and m and n denote 0 or 1, with the proviso that when Z1, Z2 or Z3 is —CF2O—, then at least two groups selected from rings A1, A2, A3 and A4 directly bonded to —CF2O— are both 1,4-phenylene in which one or more hydrogen atoms may be replaced by fluorine atoms or chlorine atoms, and any of the rings A1, A2 and A3 bonded with the carbon atoms of —CF2O— is 1,4-phenylene in which at least one hydrogen atom is replaced by fluorine or chlorine atoms.

    摘要翻译: 由通式(1)表示的化合物:其中R1表示具有1至20个碳原子的烷基,其中所述基团中的一个或多个亚甲基可被氧原子或-CH = CH-代替,并且一个或多个 所述基团中的氢原子可以被氟或氯原子代替,条件是两个或更多个亚甲基可以不被氧原子连续替代,Y1表示具有1至5个碳原子的烷氧基,其中至少一个氢 原子被氟原子取代,一个或多个氢原子可以进一步被氯原子取代,Z 1,Z 2和Z 3各自独立地表示共价键,-CH 2 CH 2 - , - CH = CH - , - COO-或-CF 2) - ,条件是Z1,Z2和Z3中的至少一个为-COO-或-CF2O-,环A1,A2,A3和A4各自独立地表示反式-1,4-亚环己基,3-环己烯-1,4 亚苯基,3-氟-3-环己烯-1,4-亚基,嘧啶-2,5-二基,1,3-二恶烷-2,5-二基,反式-1-硅烷-1,4-亚环己基,反式 -4-硅烷-1,4-亚环己基,o 其中一个或多个氢原子可以被氟原子或氯原子代替的1,4-亚苯基,m和n表示0或1,条件是当Z1,Z2或Z3为-CF2O-时,则至少两个 与-CF 2 O-直接键合的环A1,A2,A3和A4所选择的基团均为1,4-亚苯基,其中一个或多个氢原子可以被氟原子或氯原子代替,任何环A1,A2和 与-CF 2 O-的碳原子键合的A 3是其中至少一个氢原子被氟或氯原子代替的1,4-亚苯基。

    Alkoxybenzene derivative, liquid-crystal composition, and liquid-crystal display element
    4.
    发明授权
    Alkoxybenzene derivative, liquid-crystal composition, and liquid-crystal display element 失效
    烷氧基苯衍生物,液晶组合物和液晶显示元件

    公开(公告)号:US06177154B1

    公开(公告)日:2001-01-23

    申请号:US09254682

    申请日:1999-03-16

    IPC分类号: C09K1934

    摘要: Disclosed are (a) liquid crystalline compounds which are essential as component of the liquid crystal compositions, are excellent in miscibility with other liquid crystal compositions, particularly in the miscibility at low temperatures, and expressed by the general formula (1) wherein R0 and R1 independently represent an alkyl group having 1 to 10 carbon atoms; ring A0, ring A1, ring A2, and ring A3 represent 1,4-cyclohexylene group, 1,3-dioxane-2,5-diyl group, 1,4-phenylene group in which one or more hydrogen atoms on the ring may be represented by a halogen atom or R2O group, pyridine-2,5-diyl group, or pyrimidine-2,5-diyl group; Z0, Z1, Z2, and Z3 represent —CH2CH2—, —CH═CH—, —C≡C—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —COO—, —OCO—, —(CH2)4—, or single bond; Q1 and Q2 represent hydrogen atom or a halogen atom; Q3 represents hydrogen atom, a halogen atom, or R2O group; R2 represents an alkyl group having 1 to 10 carbon atoms; Y represents a halogen atom, cyano group, or an alkyl group having 1 to 10 carbon atoms; l, m, n and o are 0, 1, or 2 with the proviso that 1≦l+m+n+o≦3; and the atom which constitutes this compound may be replaced by its isotope; and (b) liquid crystal display devices fabricated by using the liquid crystal composition.

    摘要翻译: 公开了(a)作为液晶组合物成分必不可少的液晶性化合物,与其他液晶组合物的混合性优异,特别是在低温下的混溶性中,由通式(1)表示,其中R 0和R 1 独立地表示碳原子数1〜10的烷基。 环A0,环A1,环A2和环A3表示1,4-亚环己基,1,3-二恶烷-2,5-二基,环中的一个或多个氢原子的1,4-亚苯基 由卤素原子或R 2 O基团,吡啶-2,5-二基或嘧啶-2,5-二基表示; Z0,Z1,Z2和Z3表示-CH2CH2-,-CH = CH-,-C = C-,-CH2O-,-OCH2-,-CF2O-,-OCF2-,-COO-,-OCO-, (CH 2)4 - 或单键; Q1和Q2表示氢原子或卤素原子; Q3表示氢原子,卤素原子或R2O基团; R 2表示碳原子数1〜10的烷基。 Y表示卤素原子,氰基或碳原子数1〜10的烷基。 l,m,n和o分别为0,1或2,条件是1 <= 1 + m + n + o = 3; 构成该化合物的原子可以被其同位素代替; 和(b)使用该液晶组合物制造的液晶显示装置。