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    • 44. 发明专利
    • Aromatic diamine compound, polyamic acid and polyimide prepared using the same and liquid crystal aligning agent
    • 芳族二胺化合物,使用其制备的聚酰胺和聚酰亚胺和液晶化学剂
    • JP2012027429A
    • 2012-02-09
    • JP2010199260
    • 2010-09-06
    • Daxin Material Corp達興材料股▲ふん▼有限公司
    • LAI MING ZHICHANG KA-MUNHUANG DING QIWANG BAEK-YANG
    • G02F1/1337C07D295/12C07D295/18C08G73/06
    • PROBLEM TO BE SOLVED: To provide a polyamic acid and a polyimide prepared by using an aromatic diamine compound and a liquid crystal aligning agent.SOLUTION: A liquid crystal aligning agent contains a polyamide obtained by polymerization reaction of a diamine compound with a tetracarboxylic acid or a dianhydride of tetracarboxylic acid. The diamine compound includes an aromatic diamine represented by the following formula. (wherein any two of Rto Rare a primary amino group and the others are each independently a hydrogen atom or a monovalent substituent other than primary amino group, Ris an alkyl group having 1 to 20 carbon atoms, a monovalent alicyclic substituent having 3 to 40 carbon atoms, a monovalent aromatic substituent or a monovalent heterocyclic substituent having 6 to 51 carbon atoms, Xand Xare each independently a divalent binding group selected from the group consisting of a single bond or an ether group, a ketone group, an ester group, an amide group and a secondary amino group, and Xand Xare each independently a linear alkylene group having 1 to 3 carbon atoms.)
    • 要解决的问题:提供通过使用芳族二胺化合物和液晶取向剂制备的聚酰胺酸和聚酰亚胺。 解决方案:液晶取向剂含有通过二胺化合物与四羧酸或四羧酸的二酐的聚合反应得到的聚酰胺。 二胺化合物包括由下式表示的芳族二胺。 (其中R 1 至R 5 中的任何两个为伯氨基,其余各自独立地为氢原子或 除伯氨基以外的一价取代基,R 6 为碳原子数1〜20的烷基,碳原子数为3〜40的一价脂环式取代基,一价芳香族取代基或 具有6至51个碳原子的一价杂环取代基,X 1 和X 2 各自独立地为选自 由单键或醚基,酮基,酯基,酰胺基和仲氨基组成,X 3 和X 4 各自独立地为具有1至3个碳原子的直链亚烷基。)版权所有(C)2012,JPO&INPIT