Polyamic acid-based composition and liquid crystal orienting film
    1.
    发明申请
    Polyamic acid-based composition and liquid crystal orienting film 审中-公开
    聚酰胺酸组合物和液晶取向膜

    公开(公告)号:US20080226845A1

    公开(公告)日:2008-09-18

    申请号:US11723120

    申请日:2007-03-16

    Abstract: A polyamic acid-based composition includes: a polyamic acid A prepared by a process including reacting an aromatic tetracarboxylic dianhydride and an aromatic diamine; and a polyamic acid B prepared by a process including reacting an aliphatic tetracarboxylic dianhydride, an aromatic diamine having a side chain, and a non-aromatic diamine. A liquid crystal orienting film is formed by a process including: preparing a mixture containing the aforesaid polyamic acid-based composition and a solvent; coating the mixture onto a substrate so as to form a film on the substrate; and heating the film so as to convert polyamic acid of the polyamic acid-based composition into polyamide.

    Abstract translation: 基于聚酰胺酸的组合物包括:通过包括使芳族四羧酸二酐和芳族二胺反应的方法制备的聚酰胺酸A; 和通过使脂肪族四羧酸二酐,具有侧链的芳香族二胺与非芳香族二胺反应的方法制备的聚酰胺酸B。 通过包括以下工艺形成液晶取向膜:制备含有上述聚酰胺酸基组合物和溶剂的混合物; 将混合物涂布在基材上,以在基材上形成膜; 并加热该膜以将聚酰胺酸基组合物的聚酰胺酸转化为聚酰胺。

    Polyamic acid-based composition, and liquid crystal orienting agent and orienting film containing the same
    3.
    发明申请
    Polyamic acid-based composition, and liquid crystal orienting agent and orienting film containing the same 审中-公开
    基于聚酰胺酸的组合物和液晶取向剂以及含有它们的取向膜

    公开(公告)号:US20080058496A1

    公开(公告)日:2008-03-06

    申请号:US11511214

    申请日:2006-08-29

    CPC classification number: C08G73/1039 C09K19/36 C09K19/56 G02F1/133723

    Abstract: A polyamic acid-based composition is prepared by reacting a diamine reactant and a dianhydride reactant. The diamine reactant includes 20-70 mol % of a fluorine-containing diamine component having a trifluoromethyl group substituted main chain, and 30-80 mol % of a fluorine-free diamine component. The dianhydride reactant includes 65-100 mol % of an aromatic tetracarboxylic dianhydride component and 0-35 mol % of an aliphatic tetracarboxylic dianhydride component. A liquid crystal orienting agent includes the aforesaid polyamic acid-based composition and a solvent. A liquid crystal orienting film is formed by a process including: preparing a mixture containing the aforesaid polyamic acid-based composition and a solvent; coating the mixture onto a substrate so as to form a film on the substrate; and heating the film so as to convert polyamic acid of the polyamic acid-based composition into polyamide.

    Abstract translation: 通过使二胺反应物和二酐反应物反应来制备基于聚酰胺酸的组合物。 二胺反应物包含20-70mol%的具有三氟甲基取代的主链的含氟二胺组分和30-80mol%的无氟二胺组分。 二酐反应物包含65-100mol%的芳族四羧酸二酐组分和0-35mol%脂族四羧酸二酐组分。 液晶取向剂包括上述聚酰胺酸类组合物和溶剂。 通过包括以下工艺形成液晶取向膜:制备含有上述聚酰胺酸基组合物和溶剂的混合物; 将混合物涂布在基材上,以在基材上形成膜; 并加热该膜以将聚酰胺酸基组合物的聚酰胺酸转化为聚酰胺。

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