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    • 6. 发明专利
    • m-PHENYLENE DIESTER TYPE ACID DIANHYDRIDE, METHOD FOR PRODUCING THE SAME AND POLYIMIDE
    • 间苯二甲酸二异氰酸酯,其制备方法和聚酰亚胺
    • JP2013091628A
    • 2013-05-16
    • JP2011235973
    • 2011-10-27
    • Nissan Chem Ind Ltd日産化学工業株式会社
    • SUZUKI HIDEO
    • C07D307/89C08G73/16
    • PROBLEM TO BE SOLVED: To provide a polyimide having excellent solubility in an organic solvent and capable of imparting a pretilt angle of liquid crystals as a liquid crystal alignment agent, an acid dianhydride compound which is a monomer of the polyimide, and a method for producing the acid dianhydride compound.SOLUTION: The acid dianhydride compound is represented by formula [1], wherein R, Rand Reach independently represent H or 1-20C alkyl; and R, R, Rand Reach independently represent H, 1-20C alkyl or 1-20C haloalkyl, provided that Rand Ror Rand Rmay bond together to form an alkylene chain. The method for producing the acid dianhydride compound and the polyimide are also provided.
    • 解决问题的方案为了提供一种在有机溶剂中具有优异的溶解性并能赋予液晶的预倾角作为液晶取向剂的聚酰亚胺,作为聚酰亚胺的单体的酸二酐化合物和 酸二酐化合物的制造方法。 解决方案:酸式二酐化合物由式[1]表示,其中R 2 ,R 2 SP POS =“POST”> 3 各自独立地代表H或1-20C烷基; 和R 4 ,R 5 ,R 6 和R 7 各自独立地表示H,1-20C烷基或1-20C卤代烷基,条件是R 5 和R 6 或R 6 和R 7 可以键合在一起形成亚烷基链。 还提供了生产酸二酐化合物和聚酰亚胺的方法。 版权所有(C)2013,JPO&INPIT