公开(公告)号：US06740371B1

公开(公告)日：2004-05-25

申请号：US10018860

申请日：2001-12-26

申请人： Kazuyoshi Hosaka ,  Hideyuki Nawata ,  Takayasu Nihira ,  Hideyuki Isogai ,  Hideyuki Endou ,  Hiroyoshi Fukuro

发明人： Kazuyoshi Hosaka ,  Hideyuki Nawata ,  Takayasu Nihira ,  Hideyuki Isogai ,  Hideyuki Endou ,  Hiroyoshi Fukuro

IPC分类号： C09K1902

CPC分类号： G02F1/133723 ,  C07C217/90 ,  C07C237/40 ,  C08G73/10 ,  C08G73/1039 ,  C08G73/105 ,  C08G73/1071 ,  Y10T428/1005 ,  Y10T428/1023 ,  Y10T428/31721

摘要： An alkyldiamine having excellent polymerization reactivity, a polyimide comprising it as a constituting element, and a liquid crystal alignment film excellent in uniformity of liquid crystal alignment, are presented. Namely, the present invention relates to a diaminobenzene derivative represented by the following general formula (1) and to a polyimide obtained by reacting a diamine containing at least 1 mol % of the diaminobenzene derivative represented by the general formula (1), with at least one compound selected from a tetracarboxylic. dianhydride and its derivatives, to obtain a polyimide. precursor having a reduced viscosity of from 0.05 to 5.0 dl/g (in N-methylpyrrolidone at a temperature of 30° C., concentration: 0.5 g/dl) and ring-closing it, and having a repeating unit represented by the general formula (2). Further, the present invention relates to a liquid crystal alignment film containing at least 1 mol % of the above repeating unit.

摘要翻译： 提供了具有优异的聚合反应性的烷基二胺，包含其作为构成元素的聚酰亚胺和液晶取向均匀性优异的液晶取向膜。 即，本发明涉及由以下通式（1）表示的二氨基苯衍生物和通过使含有至少1mol％由通式（1）表示的二氨基苯衍生物的二胺与至少1质量％的通式 一种选自四羧酸的化合物。 二酐及其衍生物，得到聚酰亚胺。 具有0.05-5.0dl / g的比浓粘度的前体（在N-甲基吡咯烷酮中，在30℃的温度下，浓度为0.5g / dl）并闭环，并具有由通式 （2）。 此外，本发明涉及含有至少1摩尔％的上述重复单元的液晶取向膜。

公开(公告)号：US5298590A

公开(公告)日：1994-03-29

申请号：US929012

申请日：1992-08-13

申请人： Hideyuki Isogai ,  Toyohiko Abe ,  Yoshihiro Tsuruoka ,  Hiroyoshi Fukuro

发明人： Hideyuki Isogai ,  Toyohiko Abe ,  Yoshihiro Tsuruoka ,  Hiroyoshi Fukuro

IPC分类号： C08G73/10 ,  C09K19/56 ,  G02F1/1337

CPC分类号： C08G73/1067 ,  C08G73/1071 ,  G02F1/133723 ,  Y10T428/1014 ,  Y10T428/1023 ,  Y10T428/1027

摘要： The present invention relates to a liquid crystal alignment treating agent which comprises a polyimide resin prepared from a diamine including an aromatic diamine having at least one linear alkyl group of at least 6 carbon atoms per benzene ring as the essential component and a tetracarboxylic acid and its derivative.The liquid crystal alignment treating agent obtained in accordance with the present invention comprises a polyimide resin having an alkyl group on a side chain, and accordingly provides a liquid crystal-aligned film containing liquid crystal molecules stably having an enhanced inclined alignment angle (tilt angle) to a substrate.

摘要翻译： 液晶取向处理剂本发明涉及一种液晶取向处理剂，其包含由包含每个苯环至少6个碳原子的至少一个直链烷基作为必要成分的二胺构成的二胺，和四羧酸及其四 衍生物。 根据本发明获得的液晶取向处理剂包括在侧链上具有烷基的聚酰亚胺树脂，因此提供了具有稳定地具有增强的倾斜对准角（倾斜角）的液晶分子的液晶取向膜， 到基底。

公开(公告)号：US5420233A

公开(公告)日：1995-05-30

申请号：US76646

申请日：1993-06-15

申请人： Hideyuki Isogai ,  Toyohiko Abe

发明人： Hideyuki Isogai ,  Toyohiko Abe

IPC分类号： C08G73/10 ,  G02F1/1337

CPC分类号： C08G73/1007 ,  G02F1/133723 ,  Y10T428/1023 ,  Y10T428/31721

摘要： An agent for vertical orientation treatment consisting essentially of a polyimide which contains a linear alkyl group having at least 12 carbon atoms in an amount of at least 5% by weight of the alkyl group to the total weight of the polyimide, and which, when a coating film of the polyimide is formed on a substrate, has a surface energy of not more than 38 dyn/cm.

摘要翻译： 一种用于垂直取向处理的试剂，其基本上由聚酰亚胺组成，该聚酰亚胺含有至少具有至少12个碳原子的直链烷基，其量相对于聚酰亚胺的总重量为烷基的至少5重量％，并且当 在基板上形成聚酰亚胺的涂膜，其表面能为38dyn / cm以下。