POLYMERIZABLE CHIRAL COMPOUND AND ITS USE

    公开(公告)号:JPH11193287A

    公开(公告)日:1999-07-21

    申请号:JP28404098

    申请日:1998-10-06

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain a new compound useful as an agent of dope with a high torsional strength for a cholesteric liquid crystal and capable of shifting a reflected wave length of a cholesteric compound into the visible spectrum by using an extremely slight amount thereof. SOLUTION: This compound is shown by formula I [a group A is a spacer e.g. (CH2 )p ((P) is 1 to 12) or (CH2 CH2 O)q CH2 CH2 ((q) is 1 to 3); M is a mesogenic group having 2 phenylenes bound to each other through e.g. O, CO or OCO and unsubstituted or substituted with e.g. an 1-4C alkyl or methoxy group; Y is a polymerizable group e.g. a direct bond O, S; (m) is 0 or 1; (n) is 2 to 6; and X is a chiral group e.g. of formula II], e.g. a compound of formula III obtained by reacting bis(4'-hydroxylbenzoyl)-1,4:3,6-dianhydrosobbitol with 4-acryloxybutyloxycarbonyloxybenoyl chloride. A compound of formula I is pref. used in the copolymerized form with a known nematic compound.

    POLYMERIZABLE LIQUID-CRYSTALLINE COMPOUNDS
    4.
    发明申请
    POLYMERIZABLE LIQUID-CRYSTALLINE COMPOUNDS 审中-公开
    聚合液晶化合物

    公开(公告)号:WO9700600A2

    公开(公告)日:1997-01-09

    申请号:PCT/EP9603756

    申请日:1996-08-26

    Abstract: The invention concerns polymerizable liquid-crystalline compounds of the general formula (I) Z -Y -A -Y -M-Y -A -Y -Z in which the variables have the following meanings: Z , Z are radicals with reactive groups which can bring about polymerization; Y - Y are a chemical single bond, oxygen, sulphur, -O-CO-, -CO-O-, -O-CO-O-, -CO-NR-, -NR-CO-, -O-CO-NR-, -NR-CO-O- or -NR-CO-NR-, at least one of the groups Y and Y meaning -O-CO-O-, -O-CO-NR-, -NR-CO-O- or -NR-CO-NR-; A , A are C2-C30 spacers in which the carbon chain can be interrupted by oxygen in the ether function, sulphur in the thioetherfunction or by non-adjacent imino or C1-C4 alkylimino groups; M is a mesogenic group; and R is C1-C4 alkyl. The compounds and compositions containing them are distinguished by advantageous liquid-crystalline phase temperature ranges and can be used in optical display units and cholesteric liquid-crystalline colouring agents.

    Abstract translation: 聚合液晶通式(I)的化合物,位:Z <1> -Y <1> -A <1> -Y <3> -MY <4> -A <2> -Y <2> -Z <2>, 其中各变量具有以下含义位:Z <1>,含有反应性基团Z <2>的基团,通过该聚合可以带来,Y <1> - ý<4>化学键,氧,硫,-O-CO - , - CO-O-,-O-CO-O-,-CO-NR - , - NR-CO-,-O-CO-NR-,-NR-CO-O-或-NR-CO-NR - 其中,所述基团中至少一个Y是<3>和Y <4> -O-CO-O-,-O-CO-NR-,-NR-CO-O或-NR-CO-NR-。 A <1>,A <2>具有其中碳链被醚氧间隔2至30个碳原子的间隔基,硫可以以硫醚功能或不相邻的亚氨基或C 1 -C 4烷基亚氨基中断,M是介晶基团, [R C1-C4烷基。 的化合物和含有它们的组合物,是通过有利液晶相的温度范围来区分,并且可以在光学显示装置和在胆甾型液晶的着色剂一起使用。

    7.
    发明专利
    未知

    公开(公告)号:DE50112776D1

    公开(公告)日:2007-09-13

    申请号:DE50112776

    申请日:2001-04-02

    Applicant: BASF AG

    Abstract: New polymerizable liquid crystalline compounds with two disubstituted phenyl groups attached to a mesogenic group via single bonds, ether, thioether, ester, amide or similar linking groups, in which the two substituents on each phenyl group are crosslinkable groups. Polymerizable liquid crystalline (LC) compounds of formula (I) are new. A , A = crosslinkable groups; X = a single bond, -O-, -S-, -C=N-, -OCO-, -COO-, -OCOO-, -CONR-, -NRCO-, -NR-, -OCONR-, -NRCOO-, -CH2O- or -NRCONR-; R = H or 1-4C alkyl; and M = a mesogenic group. Independent claims are also included for the following: (a) A method for the production of (I) by reacting a compound of formula (III) with a mesogenic compound of formula X''-M-X'' (IV). X', X'' = reactive side-groups which combine to form group X. (b) Compositions containing (I) and optionally other components selected from cholesteric (optionally crosslinkable) compounds, inorganic pigments, coloring agents and optionally polymerizable diluents or supports. (c) Pigments containing (I) in crosslinked form. (d) Coating materials containing such compositions or pigments.

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