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    2,4-DIFLUOROBENZENES AND THEIR USE IN LIQUID CRYSTAL MIXTURES
    3.
    发明申请
    2,4-DIFLUOROBENZENES AND THEIR USE IN LIQUID CRYSTAL MIXTURES 审中-公开
    2.4 difluorobenzenes和它们在的液晶混合物

    公开(公告)号：WO1995009829A1

    公开(公告)日：1995-04-13

    申请号：PCT/EP1994003208

    申请日：1994-09-26

    Applicant: MERCK PATENT GMBH ,  SCHLOSSER, Hubert ,  JUNGBAUER, Dietmar

    Inventor： MERCK PATENT GMBH

    IPC: C07C43/225

    CPC classification number: C07C17/263 ,  C07C17/2635 ,  C07C17/354 ,  C07C25/18 ,  C07C43/225 ,  C07C69/76 ,  C07C2601/14 ,  C09K19/0403 ,  C09K19/3003 ,  C09K19/3028 ,  C09K19/3066 ,  C09K19/3068 ,  C09K2019/0407 ,  C07C25/24

    Abstract: 2,4-difluorobenzenes of general formula (1) in which: R is H, a straight-chained or branched alkyl (with or without an asymmetrical C atom) with 1 to 15 C atoms, in which one or two non-adjacent CH2 groups may also be replaced by -O-, -CH=CH-, -C=C-, cyclopropane-1,2-diyl or Si(CH3)2-, and in which one or more H atoms in the alkyl radical may be substituted by F; A , A and A are the same or different and represent 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, in which one or two H atoms may be replaced by F, trans-1,4-cyclohexylene, 1,3-dioxane-2,5-diyl or naphthalene-2,6-diyl; M , M and M are the same or different -CH2CH2-, -CH=CH-, -C=C-, -CH2CH2CH2CH2-, -CH2CH2CH2-O-, -O-CH2CH2CH2-, -CH2CH2CO-O-, -O-CO-CH2CH2-, -CH2O-, OCH2-, -CO-O-, -O-CO-; k, l, m, n, o and p are zero or one provided that the sum k+m+o is greater than zero; in which the following apply; a) with R (-A )k(-M )l(-A )m(-M )n(-A )o equal to (A), M = -CO-O- and -CH2CH2- are dropped; b) with R (-A )k(-M )l(-A )m(-M )n(-A )o equal to (B), M = -CO-O- and -CH2CH2- are dropped and p is always 1; c) with R (-A )k(-M )l(-A )m(-M )n(-A )o equal to (C), M = -O-CO- is dropped; d) and with R (-A )k(-M )l(-A )m(-M )n(-A )o equal to (D), p = 1. The substances of the invention are characterised by high clarification temperatures, wide nematic phases and good solubility.

    Abstract translation: （I），其中符号和指数具有以下含义的式-2,4-二氟苯衍生物，R <1>为H，直链或支链（具有或不具有不对称碳原子），具有1至15个碳原子，其中烷基 一个或两个不相邻的CH 2个基团可以被-O - ， - CH = CH - ， - C≡C - ，环丙烷-1,2-二基或-Si（CH 3）2 =可被替换，并且其中一个或替换 所述烷基可被F取代的多个H原子; A <1>，A <2>，A <3>相同或不同的1,4-亚苯基，吡啶-2,5-二基，嘧啶-2,5-二基，其中一个或两个H原子被F取代 可更换，反式-1,4-亚环己基，1,3-二恶烷-2,5-二基或萘-2,6-二基; 中号<1>中，M <2>中，M <3>相同或不同-CH2CH2 - ， - CH = CH - ， - C = C-，-CH2CH2CH2CH2-，-CH2CH2CH2 - ， - O-CH 2 CH 2， -CH2CH2-CO-O-，-O-CO-CH 2 CH 2 -CH 2 -O-，-O-CH 2 - ， - CO-O-，-O-CO-; K，L，M，N，O，P是0或1，条件是K + M + O的总和大于零时，具有下列附带条件适用：（a）对于R <1> - A <1 >）K（-M <1>）升（-A <2>）米（-M <2>）N（-A <3>）o是等于（A）被省略米<3>是-CO-O- 和-CH2CH2-; b）中的R <1>（ - K A <1>）（-M <1>）升（-A <2>）米（-M <2>）N（-A <3>）o是等于（B ）M被省略<3>是-CO-O-和-CH 2 CH 2，p是始终等于1; c）中对于R <1>（ - A <1> k）的（-M <1>）升（-A <2>）米（-M <2>）N（-A <3>）o是（C ）消除中号<3>是-O-CO-; D）和R <1>（ - K A <1>）（-M <1>）升（-A <2>）米（-M <2>）N（-A <3>）o为等于（ D）p是等于1。本发明的物质是通过高的清亮点，宽的向列相和良好的溶解性特征。

    FLUOROALKYLATED LIQUID-CRYSTAL COMPOUNDS, LIQUID-CRYSTAL COMPOSITIONS, AND LIQUID-CRYSTAL DISPLAY ELEMENTS
    7.
    发明申请
    FLUOROALKYLATED LIQUID-CRYSTAL COMPOUNDS, LIQUID-CRYSTAL COMPOSITIONS, AND LIQUID-CRYSTAL DISPLAY ELEMENTS 审中-公开
    氟化液晶化合物，液晶组合物和液晶显示元件

    公开(公告)号：WO1998013324A1

    公开(公告)日：1998-04-02

    申请号：PCT/JP1997003404

    申请日：1997-09-25

    Applicant: CHISSO CORPORATION ,  KONDOU, Tomoyuki ,  MATSUI, Shuichi ,  MIYAZAWA, Kazutoshi ,  TAKEUCHI, Hiroyuki ,  KUBO, Yasuhiro ,  TAKESHITA, Fusayuki ,  NAKAGAWA, Etsuo

    Inventor： CHISSO CORPORATION

    IPC: C07C25/18

    CPC classification number: C07C17/12 ,  C07C17/263 ,  C07C17/2635 ,  C07C17/361 ,  C07C25/18 ,  C07C43/174 ,  C07C43/225 ,  C09K19/12 ,  C09K19/14 ,  C09K19/20 ,  C09K2019/124 ,  Y10T428/10 ,  C07C25/13

    Abstract: Liquid-crystal compounds which exhibit an extremely high voltage retention scarcely dependent on the temperature and a large DELTA n value and are excellent in the compatibility with other liquid-crystal materials particularly at low temperature; liquid-crystal compositions containing them; and liquid-crystal display elements made by using the compositions. The liquid-crystal compounds are represented by general formula (1), wherein R is C2-C20 alkyl in which one to three arbitrary hydrogen atoms are replaced by fluorine atoms, alkoxy or alkoxyalkyl; X is halogeno or C1-C20 alkyl in which arbitrary methylene groups (-CH2-) not adjacent to each other may be replaced by oxygen atoms or one or more arbitrary hydrogen atoms may be replaced by fluorine atoms; Z1, Z2 and Z3 are each independently -(CH2)2-, -(CH2)4-, -CH2O-, -OCH2-, -(CH2)3O-, -O(CH2)3- or a covalent bond; Y1 to Y16 are each independently hydrogen or fluoro, provided at least two of them are each fluoro; and m is 0 or 1, with the proviso that the atoms constituting the compounds may be each replaced by an isotope thereof.

    Abstract translation: 表现出极高的电压保持率的液晶化合物几乎不依赖于温度和大的ΔTAn值，并且与其它液晶材料的相容性优异，特别是在低温下; 含有它们的液晶组合物; 以及使用该组合物制成的液晶显示元件。 液晶化合物由通式（1）表示，其中R是其中一至三个任意氢原子被氟原子取代的C 2 -C 20烷基，烷氧基或烷氧基烷基; X是卤素或C 1 -C 20烷基，其中不相邻的任意亚甲基（-CH 2 - ）可以被氧原子代替，或者一个或多个任意的氢原子可以被氟原子代替; Z 1，Z 2和Z 3各自独立地为 - （CH 2）2 - ， - （CH 2）4 - ， - CH 2 O-，-OCH 2 - ， - （CH 2）3 O-，-O（CH 2）3 - 或共价键; Y1至Y16各自独立地为氢或氟，条件是它们中的至少两个各自为氟; 并且m为0或1，条件是构成化合物的原子可以各自被其同位素替代。

    2,3,4,5-TETRAFLUOROBENZENES AND THEIR USE IN LIQUID CRYSTAL MIXTURES
    9.
    发明申请
    2,3,4,5-TETRAFLUOROBENZENES AND THEIR USE IN LIQUID CRYSTAL MIXTURES 审中-公开
    2,3,4,5-四氟苯和它们在的液晶混合物

    公开(公告)号：WO1995010495A1

    公开(公告)日：1995-04-20

    申请号：PCT/EP1994003210

    申请日：1994-09-26

    Applicant: HOECHST AKTIENGESELLSCHAFT ,  SCHLOSSER, Hubert ,  JUNGBAUER, Dietmar

    Inventor： HOECHST AKTIENGESELLSCHAFT

    IPC: C07C25/02

    CPC classification number: C09K19/3068 ,  C07C17/2635 ,  C07C17/354 ,  C07C25/18 ,  C07C43/225 ,  C07C69/76 ,  C07C2601/14 ,  C09K19/0403 ,  C09K19/3028 ,  C09K19/3066 ,  C09K2019/0407 ,  C07C25/24

    Abstract: 2,3,4,5-tetrafluorobenzenes of formula (I), in which: R is H, a straight-chained or branched alkyl (with or without an asymmetrical C atom) with 1 to 15 C atoms, in which one or two non-adjacent -CH2- groups may also be substituted by -O-, -CH=CH-, -C=C-, cyclopropane-1,2diyl or -Si(CH3)2- and in which one or more H atoms of the alkyl radical may be substituted by F; A , A and A are the same or different and stand for 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, in which one or two H atoms may be substituted by F, trans-1,4-cyclohexylene, 1,3-dioxane-2,5-diyl or naphthaline-2,6-diyl; M and M are the same or different and stand for -CH2CH2-, -CH=CH-, -C=C-, -CH2CH2CH2CH2-, -CH2CH2CH2-O-, -O-CH2CH2CH2-, -CH2CH2CO-O-, -O-CO-CH2CH2-, -CH2-O-, -O-CH2-, -CO-O- or -O-CO-; X is -CH2-O-, -O-CH2, -CH2CH2- or -O-CO-; k, l, m, n, o and p are zero or one provided that the sum k+m+o is greater than zero; provided that, if X = -CH2CH2- or -O-CO-, the group R (-A )k(-M )l(-A )m(-M )n(-A )o is (a). The substances of the invention are characterized by broad nematic phases in technically relevant temperature ranges. They are highly soluble and, even at high temperatures, exhibit very low conductivity, expressed in a very high holding ratio.

    Abstract translation: [R <1>为H，具有1至15个C的直链或支链（具有或不具有不对称碳原子）烷基：（I），其中符号和指数具有以下含义的式2,3,4,5-四氟苯衍生物 -atoms，其中由一个或两个非相邻-CH 2 - 基团-O - ， - CH = CH - ， - C≡C - ，环丙烷-1,2-二基或-Si（CH 3）2 - 可被取代， 且其中所述烷基可被F取代的一个或多个H原子; A <1>，A <2>，A <3>相同或不同的1,4-亚苯基，吡啶-2,5-二基，嘧啶-2,5-二基，其中一个或两个H原子被F取代 可更换，反式-1,4-亚环己基，1,3-二恶烷-2,5-二基或萘-2,6-二基; 中号<1>中，M <2>是相同的或不同的-CH 2 CH 2 - ， - CH = CH - ， - C = C-，-CH2CH2CH2CH2-，-CH2CH2CH2 - ， - O-CH 2 CH 2，-CH2CH2CO-O- ，-O-CO-CH 2 CH 2 -CH 2 -O-，-O-CH 2 - ， - CO-O-或-O-CO-; X是-CH2-O-，-O-CH 2 - ，-CH 2 CH 2，或-O-CO-，K，L，M，N，O，P是0或1，条件是K + m之和 + o是大于零; 条件是当X是-CH 2 CH 2或-O-CO-，<1>，基团R（ - A <1>）K（-M <1>）升（-A <2>）（米 - 中号<2>）N（-A <3>）O（a）中。 新化合物在技术上相关的温度范围从的特征在于宽的向列相。 它们是容易溶解和甚至在高温下非常低的导电性，这反映在用于电压耐力非常高的值显示（保持率）表示。

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