利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

573 条记录 (耗时 0.024 秒)

    LIQUID CRYSTAL COMPOUNDS HAVING FLUORINATED 1,4-PHENYLENE SKELETONS, LIQUID CRYSTAL COMPOSITIONS, AND LIQUID CRYSTAL DISPLAY DEVICES
    45.
    发明公开
    LIQUID CRYSTAL COMPOUNDS HAVING FLUORINATED 1,4-PHENYLENE SKELETONS, LIQUID CRYSTAL COMPOSITIONS, AND LIQUID CRYSTAL DISPLAY DEVICES 失效
    FLUSSIGKRISTALLINE VERBINDUNGEN MIT EINEM 1,4-PHENYLENGRUNDGERUST，FLUSSIGKRISTALLINE ZUSAMMENSETZUNGEN UND FLUSSIGKISTALLINES ANZEELEEMEMENT

    公开(公告)号：EP0891961A4

    公开(公告)日：1999-06-16

    申请号：EP97903621

    申请日：1997-02-27

    申请人： CHISSO CORP

    发明人： SHIBATA KOICHI ,  KONDO TOMOYUKI ,  MATSUI SHUICHI ,  MIYAZAWA KAZUTOSHI ,  HACHIYA NORIHISA ,  NAKAGAWA ETSUO

    IPC分类号： C07C43/174 ,  C09K19/30 ,  C09K19/46 ,  C09K19/50 ,  C09K19/42 ,  G02F1/13

    CPC分类号： C09K19/3001 ,  C07C43/1747 ,  C07C2601/14 ,  C09K19/3003 ,  C09K19/3028 ,  C09K19/46 ,  C09K19/50

    摘要： Compounds represented by general formula (1), which exhibit nematic liquid crystal phases over widened temperature ranges and are lowered in viscosity and improved in low-temperature compatibility with other liquid crystal compounds and chemical stability as compared with the liquid crystal compounds of the prior art, wherein H1 to H8 are each hydrogen or halogeno, with at least one member of them being halogeno; R1 is C2-C20 alkyl wherein one methylene (-CH2-) group or two or more methylene groups that are not adjacent to each other are replaced by ethereal oxygen (-O-); Y1 is C1-C20 alkyl wherein one or more methylene groups may be replaced by oxygen, sulfur, dihydroxysilyl, dimethylsilylene, -CH=CH-, and/or -CC-; and X1 to X3 are each a covalent bond, 1,2-ethylene or 1,4-butylene.

    摘要翻译： 通式（1）表示的化合物与现有技术的液晶化合物相比，在宽的温度范围内呈现向列型液晶相，粘度降低，与其他液晶化合物的低温相容性和化学稳定性提高 其中H1至H8各自为氢或卤代，其中至少一个为卤代; R1是C2-C20烷基，其中彼此不相邻的一个亚甲基（-CH2-）或两个或更多个亚甲基被醚氧（-O-）代替; Y 1是其中一个或多个亚甲基可被氧，硫，二羟基甲硅烷基，二甲基亚甲硅烷基，-CH = CH-和/或-CC-代替的C 1 -C 20烷基; X1至X3各自为共价键，1,2-亚乙基或1,4-亚丁基。