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1. 发明授权

US5663440A Diamino compounds and methods for preparing them 失效
标题翻译：二氨基化合物及其制备方法
公开(公告)号：US5663440A
公开(公告)日：1997-09-02
申请号：US537479
申请日：1995-10-02
申请人： Toshiya Sawai , Seiji Oikawa , Masaaki Yazawa , Shizuo Murata , Masaharu Hayakawa , Etsuo Nakagawa , Shinichi Sawada
发明人： Toshiya Sawai , Seiji Oikawa , Masaaki Yazawa , Shizuo Murata , Masaharu Hayakawa , Etsuo Nakagawa , Shinichi Sawada
IPC分类号： C07C211/50 , C08G73/10 , G02F1/1337 , C07C211/00 , C09K19/56
CPC分类号： G02F1/133723 , C07C211/50 , C08G73/10 , C07C2101/14
摘要： An object of the invention is to propose diamino compounds expressed by the following general formula (1) which are suitable to obtain a raw material, a polyimide resin, for a liquid crystal aligning film without any image sticking and with a high voltage holding ratio at from a low temperature to a high temperature as well as the preparation thereof: ##STR1##
摘要翻译：本发明的目的是提出由以下通式（1）表示的二氨基化合物，它们适用于获得用于液晶取向膜的原料，聚酰亚胺树脂，没有任何图像残留和高电压保持率从低温到高温及其制备方法：（1）

2. 发明授权

US5807961A Polyamic acid, polyimide film and liquid crystal aligning film and liquid crystal display element using the formers 失效
标题翻译：聚酰胺酸，聚酰亚胺薄膜和液晶取向膜以及使用前者的液晶显示元件
公开(公告)号：US5807961A
公开(公告)日：1998-09-15
申请号：US860013
申请日：1997-06-20
申请人： Toshiya Sawai , Masaaki Yazawa , Seiji Oikawa , Shizuo Murata , Masaharu Hayakawa , Etsuo Nakagawa
发明人： Toshiya Sawai , Masaaki Yazawa , Seiji Oikawa , Shizuo Murata , Masaharu Hayakawa , Etsuo Nakagawa
IPC分类号： C08G73/10 , C09K19/30 , G02F1/1337
CPC分类号： C09K19/3001 , C08G73/101 , C08G73/1014 , C08G73/1017 , C08G73/1042 , C08G73/106 , G02F1/133723 , Y10T428/31721
摘要： This invention is directed to a polyimide film useful as use applications for electronic materials; a liquid crystal aligning film using the same; a liquid crystal display element provided with the liquid crystal aligning film; and a polyamic acid used as a raw material of the polyimide constituting the polyimide film. The polyimide used for preparing the above polyimide films, consists of a diamine component, the 50% by mol or more based upon the total diamine, of which is a diamine having a core structure having no polar group such as 1,2-bis(4-(4-aminobenzyl)phenyl)ethane, 1,6-bis(4-(4-aminobenzyl)phenyl)hexane, 1,1-bis(4-(4-aminobenzyl)phenyl)heptane, etc., and a tetracarboxylic acid dianhydride, and if necessary, an aminosilicon compound, is used as a liquid crystal aligning film.
摘要翻译： PCT No.PCT / JP96 / 03029 Sec。 371日期：1997年6月20日 102（e）日期1996年6月20日PCT 1996年10月17日PCT公布。第WO97 / 14742号公报日期1997年04月24日本发明涉及可用作电子材料用途的聚酰亚胺膜; 使用其的液晶取向膜; 设置有液晶取向膜的液晶显示元件; 和作为构成聚酰亚胺膜的聚酰亚胺的原料的聚酰胺酸。用于制备上述聚酰亚胺膜的聚酰亚胺由二胺组分组成，基于总二胺的50摩尔％以上，其为具有不具有极性基团的核心结构的二胺，例如1,2-双（ 4-（4-氨基苄基）苯基）乙烷，1,6-双（4-（4-氨基苄基）苯基）己烷，1,1-双（4-（4-氨基苄基）苯基）庚烷等，四羧酸二酐，如果需要，使用氨基硅化合物作为液晶取向膜。

3. 发明授权

US06476266B1 Diamino compound and production process for the same 失效
标题翻译：二氨基化合物和生产工艺相同
公开(公告)号：US06476266B1
公开(公告)日：2002-11-05
申请号：US09471373
申请日：1999-12-23
申请人： Takahiro Mori , Toshiya Sawai , Shizuo Murata , Masaaki Yazawa , Satoshi Tanioka , Kumiko Hara
发明人： Takahiro Mori , Toshiya Sawai , Shizuo Murata , Masaaki Yazawa , Satoshi Tanioka , Kumiko Hara
IPC分类号： C07C21100
CPC分类号： C07C211/50 , C07C2601/14
摘要： Provided is a diamino compound suitable for obtaining a polyimide which can form a liquid crystal alignment film capable of providing a liquid crystal display element, an intermediate therefor and a production process for the same. The above production process is characterized by reacting a cyclohexylbenzene derivative represented by Formula (3): with an acid halide represented by Formula (4): by the Frieldel-Crafts reaction to produce a cyclohexylphenylcarbonyl compound, and reducing the above compound after nitrating, whereby a compound represented by Formula (1) is obtained: (wherein A1 represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms; A2 represents a single bond or an alkylene group having 1 to 5 carbon atoms, and one or optional methylene groups which are not adjacent in the group may be substituted with an oxygen atom; X is Br or Cl; m represents an integer of 0 to 3, and n represents an integer of 1 to 5).
摘要翻译：提供一种适于获得可形成能够提供液晶显示元件的液晶取向膜的聚酰亚胺的二氨基化合物，其中间体及其制备方法。上述制备方法的特征在于使式（3）表示的环己基苯衍生物与式（4）表示的酰卤反应：通过Frieldel-Crafts反应制备环己基苯基羰基化合物，硝化后还原上述化合物，由此得到式（1）表示的化合物：其中，A 1表示氢原子或碳原子数1〜12的烷基，A 2表示单键或碳原子数1〜5的亚烷基，在基团中不相邻的基团可以被氧原子取代; X是Br或Cl; m表示0〜3的整数，n表示1〜5的整数）。

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