-
公开(公告)号：DE69732949D1
公开(公告)日：2005-05-12
申请号：DE69732949
申请日：1997-05-15
Applicant: JSR CORP
Inventor： NISHIKAWA MICHINORI , YASUDA KYOUYU , KAWAMURA SHIGEO , TOYOSHIMA TSUKASA , MATSUKI YASUO , WAKABAYASHI KENGO
IPC: C08G73/10 , G02F1/1337
Abstract: A liquid crystal alignment agent containing at least two kinds of polymers selected from the group consisting of polyamic acids and imidized polymers and having a structure obtained by dehydration and ring closure of polyamic acid. In the at least two kinds of polymers contained in the liquid crystal alignment agent, the polymer of higher imidization degree has a smaller surface free energy. The liquid crystal alignment agent gives a liquid crystal display device having less stuck image and high pretilt angle.
-
公开(公告)号：DE69631851D1
公开(公告)日：2004-04-22
申请号：DE69631851
申请日：1996-03-27
Applicant: JSR CORP
Inventor： NISHIKAWA MICHINORI , MIYAMOTO TSUYOSHI , KAWAMURA SHIGEO , YASUDA KYOUYU , MUTSUGA YASUAKI , MATSUKI YASUO
IPC: C09K19/56 , G02F1/1337
Abstract: A liquid crystal aligning agent contains (1) at least one polymer selected from the group consisting of a polyamic acid obtainable by a reaction between a tetracarboxylic acid dianhydride and a diamine compound and an imidized polymer obtainable by cyclization with dehydration of the polyamic acid; (2) at least one first solvent selected from the group consisting of N-alkyl-2-pyrrolidones, lactones, and 1,3-dialkyl-2-imidazolidinones; (3) at least one second solvent selected from the group consisting of: (a) a first compound represented by general formula (I) wherein R is an alkylene group having 2 or 3 carbon atoms; R is an alkyl group having 1 to 4 carbon atoms an acetyl group or a propionyl group; R is an alkyl group having 1 to 3 carbon atoms, an alkoxyl group having 1 to 3 carbon atoms, or a halogen atom; a is 1 or 2; and b is 0 or integers of from 1 to 5; and (b) a second compound represented by general formula (II) wherein R is an alkyl group having 1 to 4 carbon atoms; R is an alkylene group having 2 or 3 carbon atoms; R is an alkyl group having 1 to 3 carbon atoms; and c is 1 or 2.
-
公开(公告)号：DE69631851T2
公开(公告)日：2005-01-05
申请号：DE69631851
申请日：1996-03-27
Applicant: JSR CORP
Inventor： NISHIKAWA MICHINORI , MIYAMOTO TSUYOSHI , KAWAMURA SHIGEO , YASUDA KYOUYU , MUTSUGA YASUAKI , MATSUKI YASUO
IPC: C09K19/56 , G02F1/1337
Abstract: A liquid crystal aligning agent contains (1) at least one polymer selected from the group consisting of a polyamic acid obtainable by a reaction between a tetracarboxylic acid dianhydride and a diamine compound and an imidized polymer obtainable by cyclization with dehydration of the polyamic acid; (2) at least one first solvent selected from the group consisting of N-alkyl-2-pyrrolidones, lactones, and 1,3-dialkyl-2-imidazolidinones; (3) at least one second solvent selected from the group consisting of: (a) a first compound represented by general formula (I) wherein R is an alkylene group having 2 or 3 carbon atoms; R is an alkyl group having 1 to 4 carbon atoms an acetyl group or a propionyl group; R is an alkyl group having 1 to 3 carbon atoms, an alkoxyl group having 1 to 3 carbon atoms, or a halogen atom; a is 1 or 2; and b is 0 or integers of from 1 to 5; and (b) a second compound represented by general formula (II) wherein R is an alkyl group having 1 to 4 carbon atoms; R is an alkylene group having 2 or 3 carbon atoms; R is an alkyl group having 1 to 3 carbon atoms; and c is 1 or 2.
-
公开(公告)号：EP0840161A4
公开(公告)日：1999-11-24
申请号：EP97922059
申请日：1997-05-15
Applicant: JSR CORP
Inventor： NISHIKAWA MICHINORI , YASUDA KYOUYU , KAWAMURA SHIGEO , TOYOSHIMA TSUKASA , MATSUKI YASUO , WAKABAYASHI KENGO
IPC: C08G73/10 , G02F1/1337
CPC classification number: C08G73/10 , G02F1/133723
Abstract: A liquid crystal aligning agent comprising two or more polymers selected from the group consisting of polyamic acids and imidated polymers having structures prepared by dehydration and ring closure of polyamic acids. In the above two or more polymers, the larger the degree of imidation of the polymer, the smaller the surface free energy of the polymer. This aligning agent is less likely to cause an afterimage in a liquid crystal display device and has a high pretilt angle.
-
公开(公告)号：DE69732949T2
公开(公告)日：2006-02-23
申请号：DE69732949
申请日：1997-05-15
Applicant: JSR CORP
Inventor： NISHIKAWA MICHINORI , YASUDA KYOUYU , KAWAMURA SHIGEO , TOYOSHIMA TSUKASA , MATSUKI YASUO , WAKABAYASHI KENGO
IPC: C08G73/10 , G02F1/1337
Abstract: A liquid crystal alignment agent containing at least two kinds of polymers selected from the group consisting of polyamic acids and imidized polymers and having a structure obtained by dehydration and ring closure of polyamic acid. In the at least two kinds of polymers contained in the liquid crystal alignment agent, the polymer of higher imidization degree has a smaller surface free energy. The liquid crystal alignment agent gives a liquid crystal display device having less stuck image and high pretilt angle.
-
Patent Agency Ranking
公开(公告)号：DE69530053T2
公开(公告)日：2003-12-11
申请号：DE69530053
申请日：1995-12-13
Applicant: JSR CORP
Inventor： NISHIKAWA MICHINORI , KAWAMURA SHIGEO , MATSUKI YASUO , YASUDA KYOUYU , MIYAMOTO TSUYOSHI
IPC: C08G73/10 , G02F1/1337
-
公开(公告)号：DE69530053D1
公开(公告)日：2003-04-30
申请号：DE69530053
申请日：1995-12-13
Applicant: JSR CORP
Inventor： NISHIKAWA MICHINORI , KAWAMURA SHIGEO , MATSUKI YASUO , YASUDA KYOUYU , MIYAMOTO TSUYOSHI
IPC: C08G73/10 , G02F1/1337
-
公开(公告)号：JP2005120376A
公开(公告)日：2005-05-12
申请号：JP2004300556
申请日：2004-10-14
Inventor： YASUDA YOSHITOMO , KAWAMURA SHIGEO , NISHIKAWA MICHINORI , MUTSUKA YASUAKI , MATSUKI YASUO
IPC: G02F1/1337 , C08G73/10 , C09D179/08
Abstract: PROBLEM TO BE SOLVED: To obtain a liquid crystal aligning agent which allows low temperature baking, has good orientability of liquid crystals and can form, by a printing process, a liquid crystal alignment layer having short afterimage-erasing time when voltage is applied on liquid crystal cells.
SOLUTION: The liquid crystal aligning agent comprises the imidized polymer which has 0.05-10 dL/g intrinsic viscosity and recurring units obtained by reacting alicyclic tetracarboxylic acid dianhydride such as 1,2,3,4-cyclobutane tetracarboxylic acid dianhydride with a combination of an diamine compound having nitrogen-containing heterocycle such as 2,6-diaminopyridine and an aromatic diamine such as p-phenylendiamine, and the agent is coated by a printing process.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题为了获得允许低温烘烤的液晶取向剂，具有良好的液晶取向性，并且可以通过印刷工艺形成具有短的图像擦除时间的液晶取向层，当电压为 应用于液晶单元。 解决方案：液晶取向剂包括具有0.05-10dL / g特性粘度的酰亚胺化聚合物和通过使脂环族四羧酸二酐如1,2,3,4-环丁烷四羧酸二酐与 将具有含氮杂环的二胺化合物如2,6-二氨基吡啶和芳族二胺如对苯二胺的组合，并通过印刷方法进行涂布。 版权所有（C）2005，JPO＆NCIPI
-
公开(公告)号：JPH10204438A
公开(公告)日：1998-08-04
申请号：JP2610697
申请日：1997-01-24
Applicant: JSR CORP
Inventor： NISHIKAWA MICHINORI , YASUDA YOSHITOMO , KAWAMURA SHIGEO , MUTSUKA YASUAKI , MATSUKI YASUO
IPC: G02F1/1337 , C08G73/10 , C09K19/56
Abstract: PROBLEM TO BE SOLVED: To obtain a liquid crystal-orienting agent enabling to form liquid crystal-orienting films good in liquid crystal orientation, excellent in the long period stability of pre-tilt angles, and giving liquid crystal display elements, etc., which are useful for liquid crystal televisions, etc., by including a specific imide polymer, etc. SOLUTION: This liquid crystal-orienting agent comprises at least either of a polyamic acid obtained by reacting (A) a tetracarboxylic acid dianhydride of formula I (R is a tetravalent organic group), such as butane tetracarboxylic acid dianhydride, with (B) a diamine compound of formula II (R is a divalent to hexavalent organic group having a larger length than the longest diameter of 6Å; R is F, a fluoroalkyl, etc.; (n) is 1-5], such as a compound of formula III, and an imide polymer obtained by subjecting the polyamic acid to a dehydrative ring-closing reaction.
-
公开(公告)号：JPH10274848A
公开(公告)日：1998-10-13
申请号：JP8125397
申请日：1997-03-31
Applicant: JSR CORP
Inventor： KAWAMURA SHIGEO , ABE SHIGERU , NEMOTO HIROAKI , KUMANO KOJI
Abstract: PROBLEM TO BE SOLVED: To reduce production cost by adding a specified compd. having unsatd. groups and carboxyl groups to a radiation sensitive compsn. SOLUTION: This radiation sensitive compsn. contains a compd. having unsatd. groups and carboxyl groups obtd. by allowing tetracarboxylic acid dianhydride represented by formula I to react with a compd. represented by formula II and/or a compd. having unsatd. groups and carboxyl groups obtd. by allowing a compd. represented by formula III to react with an acid anhydride represented by formula IV. In the formula I, R1 is a pentavalent org. group. In the formula II, R2 is a monovalent org. group having at least one radiation polymerizable unsatd. bond. In the formula III, R4 is a divalent org. group and R5 is OH or a monovalent org. amino group. In the formula IV, R6 is a monovalent org. group having at least one radiation polymerizable unsatd. bond.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.022 seconds)
