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    • 5. 发明专利
    • Diamine compound having dendron-structured side chain, and liquid crystal aligning agent using the same
    • 具有结构侧链的DIAMINE化合物和使用其的液晶结合剂
    • JP2006188650A
    • 2006-07-20
    • JP2005252909
    • 2005-08-31
    • Cheil Industries Incチェイル インダストリーズ インコーポレイテッドCheil Industries Inc.
    • OH JAE MINLEE MOO YOUNGLEE BUM JINKWON O BUMDONG WON SEOKTSUDA YUSUKE
    • C08G73/10C07C235/56G02F1/1337
    • C08G73/10
    • PROBLEM TO BE SOLVED: To provide a functional diamine compound usable for producing a high-performance liquid crystal aligning agent excellent in liquid crystal aligning ability, chemical resistance, electrical properties and optical properties, to provide such a liquid crystal aligning agent, and also to provide a liquid crystal aligning agent capable of producing liquid crystal alignment layer not only of twisted nematic (TN) mode with low liquic crystal pretilt angle but also of verically aligned (VA) mode with nearly 90° high pretilt angle required.
      SOLUTION: The new functional diamine compound having a dendron-structured side chain is provided. A polyamic acid obtained by using such a functional diamine, an aromatic cyclic acid diamine, an aliphatic cyclic acid diahhydride and an aromatic cyclic acid dianhydride is also provided. The liquid crystal alignment layer is produced by using a polyimide, which is obtained by imidization of the polyamic acid.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供可用于制备液晶取向性,耐药性,电性能和光学性能优异的高性能液晶取向剂的官能二胺化合物,以提供这种液晶取向剂, 并且还提供一种液晶取向剂,其不仅可以制造具有低液晶预倾角的扭曲向列(TN)模式的液晶取向层,而且可以产生具有近90°预倾角所需的正向对准(VA)模式。 解决方案:提供具有树枝状结构的侧链的新的官能二胺化合物。 还提供了通过使用这种官能二胺,芳族环酸二胺,脂族环酸二酐和芳族环酸二酐获得的聚酰胺酸。 通过使用聚酰亚胺酰亚胺化得到的聚酰亚胺制造液晶取向膜。 版权所有(C)2006,JPO&NCIPI