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    Composition for liquid crystal aligning agent
    1.
    发明授权
    Composition for liquid crystal aligning agent 失效
    液晶取向剂组成

    公开(公告)号：US4929658A

    公开(公告)日：1990-05-29

    申请号：US334571

    申请日：1989-04-07

    申请人： Noriaki Kohtoh ,  Yoshihiro Tsuruoka ,  Toyohiko Abe ,  Hiroyoshi Fukuro

    发明人： Noriaki Kohtoh ,  Yoshihiro Tsuruoka ,  Toyohiko Abe ,  Hiroyoshi Fukuro

    IPC分类号： C08G73/10 ,  G02F1/1337

    CPC分类号： G02F1/133723 ,  C08G73/1007 ,  C08G73/1042 ,  C08G73/106

    摘要： This invention is concerned with a composition to be used as an agent for aligning liquid crystals in a liquid crystal cell, wherein liquid crystal molecules are aligned with an increased pretilt angle with respect to the substrate, such composition consists essentially of a polyimide resin precursor having repeating units represented by the formula (I) ##STR1## wherein R.sub.1 denotes an organic group constituting a tetracarboxylic acid or its derivative; and R.sub.2 represents a divalent organic group constituting a diamine; anda precursor of a diimide compound represented by the formula (II) or (III): ##STR2## wherein R.sub.3 denotes a divalent organic group constituting a diamine; each of R.sub.4 and R.sub.5 represents an organic groups constituting a dicarboxylic acid containing an alkyl group having 6 to 20 carbon atoms, or its derivative, ##STR3## wherein R.sub.6 denotes an organic group constituting a tetracarboxylic acid or its derivative, and each of R.sub.7 and R.sub.8 represents an organic group constituting a monoamine containing an alkyl group having 6 to 20 carbon atoms.

    Fluorine containing diaminobenzene derivatives and its use
    2.
    发明授权
    Fluorine containing diaminobenzene derivatives and its use 失效
    含氟二氨基苯衍生物及其用途

    公开(公告)号：US5153304A

    公开(公告)日：1992-10-06

    申请号：US853583

    申请日：1992-03-18

    申请人： Yu Nagase ,  Yuriko Takamura ,  Noriaki Kohtoh ,  Hiroyoshi Fukuro ,  Toyohiko Abe

    发明人： Yu Nagase ,  Yuriko Takamura ,  Noriaki Kohtoh ,  Hiroyoshi Fukuro ,  Toyohiko Abe

    IPC分类号： C07C217/76 ,  C08G73/10

    CPC分类号： C08G73/1067 ,  C07C217/76 ,  C08G73/1042

    摘要： The present invention relates to a novel fluorine-containing diaminobenzene derivative having a perfluoroalkyl group and to a novel fluorine-containing polyimide which is produced from the said diaminobenzene as a starting material and to a novel polyimide having both a fluorine-containing group and/or a siloxane chain in the side chain thereof, the polyimide being produced from the said fluorine-containing diaminobenzene and fluorine-containing polyimide and to a liquid crystal-aligning agent with an elevated tilt angle, which contains a polyimide having a fluorine-containing group and a siloxane chain.

    摘要翻译： 本发明涉及一种新型的具有全氟烷基的含氟二氨基苯衍生物和由所述二氨基苯作为起始原料制备的新的含氟聚酰亚胺和具有含氟基团和/或 其侧链中的硅氧烷链，由所述含氟二氨基苯和含氟聚酰亚胺制成的聚酰亚胺和具有高倾斜角的液晶取向剂，其含有含氟基团的聚酰亚胺和 硅氧烷链。

    Positive photosensitive polyimide resin composition comprising an o-quinone diazide as a photosensitive compound
    7.
    发明授权
    Positive photosensitive polyimide resin composition comprising an o-quinone diazide as a photosensitive compound 失效
    包含邻醌二叠氮化合物作为光敏化合物的正光敏聚酰亚胺树脂组合物

    公开(公告)号：US5288588A

    公开(公告)日：1994-02-22

    申请号：US983605

    申请日：1992-11-30

    申请人： Masahiko Yukawa ,  Toyohiko Abe ,  Noriaki Kohtoh

    发明人： Masahiko Yukawa ,  Toyohiko Abe ,  Noriaki Kohtoh

    IPC分类号： C08G73/10 ,  G03F7/023 ,  G03F7/32

    CPC分类号： G03F7/0233 ,  C08G73/1042 ,  Y10S430/106

    摘要： A positive photosensitive polyimide resin composition which comprises 100 parts by weight of an organic solvent-soluble polyimide resin and 1-100 parts by weight of an .omicron.-quinonediazide compound, said polyimide resin being composed of the repeating units represented by formulas [I] and [II] below ##STR1## (where R.sub.1 is a divalent organic group to constitute a diamine which has one or more groups of at least one kind selected from the group consisting of phenolic hydroxyl group, carboxyl group, thiophenol group, and sulfonic group; R.sub.3 is a divalent organic group having no phenolic hydroxyl group, carboxyl group, thiophenol group, and sulfonic group; and R.sub.2 and R.sub.4 each are a tetravalent organic group constituting a-tetracarboxylic acid and a derivative thereof when R.sub.1 has one or more groups of at least one kind selected from the group consisting of carboxyl group and sulfonic group and has no phenolic hydroxyl group and thiophenol group, or R.sub.2 and R.sub.4 each are a tetravalent organic group constituting a tetracarboxylic acid and a derivative thereof composed of four carbonyl groups which are not attached directly to the aromatic ring when R.sub.1 has a phenolic hydroxyl group and/or thiophenol group) with the molar percentage (a) of the repeating units represented by formula [I] being in the range of 1 mol %.ltoreq.a.ltoreq.90 mol % and the molar percentage (b) of the repeating units represented by formula [II] being in the range of 10 mol % .ltoreq.b.ltoreq.99 mol %, and having a reduced viscosity of 0.05-3.0 dl/g (measured at a concentration of 0.5 g/l in N-methylpyrrolidone at 30.degree. C.).

    摘要翻译： 一种正型感光性聚酰亚胺树脂组合物，其包含100重量份的有机溶剂可溶性聚酰亚胺树脂和1-100重量份的（ü） - 醌二叠氮化合物，所述聚酰亚胺树脂由式（I）表示的重复单元 ）和（II）（*化学结构*）（I）（*化学结构*）（II）（其中R1是构成二胺的二价有机基团，其具有一个或多个选自以下的至少一种基团： 由酚羟基，羧基，苯硫酚基和磺酸基组成的组; R3是不含酚羟基，羧基，苯硫酚基和磺酸基的二价有机基团; R2和R4各自是构成四价有机基团 α-四羧酸及其衍生物，当R1具有一个或多个选自羧基和磺酸基中并且不具有酚羟基和苯硫酚g的至少一种基团时， 或R 2和R 4各自为构成四羧酸的四价有机基团及其衍生物，其中，当R 1具有酚羟基和/或苯硫酚基团时，其不具有直接连接到芳环上的四个羰基） 由式（I）表示的重复单元的百分比（a）在1摩尔％<= a <= 90摩尔％的范围内，由式（II）表示的重复单元的摩尔百分数（b）在 范围为10摩尔％<= b <= 99摩尔％，并且具有0.05-3.0dl / g的比浓粘度（在N-甲基吡咯烷酮中在30℃下以0.5g / l的浓度测量）。