Chiral compounds and their use as chiral dopants for producing cholesteric liquid crystal compositions
    6.
    发明授权
    Chiral compounds and their use as chiral dopants for producing cholesteric liquid crystal compositions 失效
    手性化合物及其作为手性掺杂剂用于生产胆甾型液晶组合物的用途

    公开(公告)号:US06468444B1

    公开(公告)日:2002-10-22

    申请号:US09531468

    申请日:2000-03-20

    IPC分类号: C09K1936

    摘要: Chiral dopants of the formula I Z1—Y1—(A1)m—Y2—M—Y3—X—Y4—(A2)n—Y5—Z2  I in which the variables have, independently of one another, the following meanings: A1 and A2 a spacer with a chain length of 1 to 30 carbon atoms; Y1 to Y5 a chemical bond, —O—, —S—, —C(═O)—, —C(═O)—O—, —O—C(═O)—, —CH═CH—C(═O)—O—, —O—C(═O)—O—, —C(═O)—N(R)— or —(R)N—C(═O)—, —CH2—O—, —O—CH2—, —CH═N—, —N═CH— or —N═N—; M a mesogenic group; R hydrogen, C1-C4-alkyl; Z1 and Z2 hydrogen, C1-C4-alkyl, a polymerizable group or a radical having a polymerizable group; x a dianhydrohexitol residue selected from the group consisting of dianhydrosorbitol, dianhydromannitol and dianhydroiditol; m/n 0 or 1, where the radicals Z1, Z2, Y1 to Y5, A1 and A2 can be identical or different, and at least one Z1 or Z2 radical is a polymerizable group or a radical having a polymerizable group, and their use as chiral dopants for producing cholesteric liquid crystal compositions which can be employed as UV filters in cosmetic and pharmaceutical preparations.

    摘要翻译: 变量具有彼此独立的以下含义的式Iin的手性掺杂剂:具有1至30个碳原子的链长的A1和A2a间隔基; Y1至Y5a化学键,-O - , - S - , - C(= O) - , - C(= O)-O-,-OC(= O) - , - CH = CH-C(= O)-O-,-OC(= O) C(= O)-N(R) - 或 - (R)NC(= O) - , - CH 2 -O-,-O-CH 2 - , - CH = N-,-N = CH-或-N = N-; M是介晶基团; R氢,C1-C4-烷基; Z1和Z2H2,C1-C4-烷基,可聚合基团或具有可聚合基团的基团; xa二脱水己糖醇残基,其选自二脱水山梨糖醇,二脱水甘露糖醇 和二氨基甲醇; m / n 0或1,其中基团Z 1,Z 2,Y 1至Y 5,A 1和A 2可以相同或不同,并且至少一个Z 1或Z 2基团是可聚合基团或具有可聚合基团的基团, 以及它们作为用于生产胆甾型液晶组合物的手性掺杂剂的用途,其可用作化妆品和药物制剂中的UV过滤器。

    Polymerizable liquid-crystalline compounds
    7.
    发明授权
    Polymerizable liquid-crystalline compounds 失效
    可聚合液晶化合物

    公开(公告)号:US6136225A

    公开(公告)日:2000-10-24

    申请号:US29068

    申请日:1998-03-02

    摘要: Polymerizable liquid-crystalline compounds of the formula IZ.sup.1 --Y.sup.1 --A.sup.1 --Y.sup.3 --M--Y.sup.4 --A.sup.2 --Y.sup.2 --Z.sup.2 IwhereZ.sup.1 and Z.sup.2 are radicals containing reactive groups via which polymerization can be effected,Y.sup.1 -Y.sup.4 are a single chemical bond, oxygen, sulfur, --O--CO--, --CO--O--, --O--CO--O--, --CO--NR--, --NR--CO--, --O--CO--NR--, --NR--CO--O-- or --NR--CO--NR--, where at least one of the groups Y.sup.3 and Y.sup.4 is --O--CO--O--, --O--CO--NR--, --NR--CO--O-- or --NR--CO--NR--,A.sup.1 and A.sup.2 are spacers having 2 to 30 carbon atoms in which the carbon chain may be interrupted by ether oxygen, thioether sulfur or by nonadjacent imino or C.sub.1 -C.sub.4 -alkylimino groups,M is a mesogenic group,R is C.sub.1 -C.sub.4 -alkyl,and compositions comprising them are distinguished by favorable liquid-crystalline phase-temperature ranges and can be used in optical display devices and in cholesteric liquid-crystalline colorants.

    摘要翻译: PCT No.PCT / EP96 / 03756 Sec。 371日期1998年3月2日 102(e)1998年3月2日PCT PCT 1996年8月26日PCT公布。 公开号WO97 / 00600 PCT 日期1997年1月9日式IZ1-Y1-A1-Y3-M-Y4-A2-Y2-Z2I的可聚合液晶化合物其中Z1和Z2是含有可通过其进行聚合的反应性基团的基团,Y1-Y4是 单一化学键,氧,硫,-O-CO-,-CO-O-,-O-CO-O-,-CO-NR-,-NR-CO-,-O-CO-NR-,-NR -CO-O-或-NR-CO-NR-,其中基团Y3和Y4中的至少一个是-O-CO-O-,-O-CO-NR-,-NR-CO-O-或 - NR-CO-NR-,A1和A2是具有2至30个碳原子的间隔物,其中碳链可以被醚氧,硫醚硫或不相邻的亚氨基或C 1 -C 4 - 烷基亚氨基封闭,M是介晶基团, R是C1-C4-烷基,并且包含它们的组合物由有利的液晶相温度范围区别,并且可以用于光学显示装置和胆甾型液晶着色剂中。