Title:
液晶配向剤、液晶配向膜、及び液晶表示素子
Document Type and Number:
Japanese Patent JP6597307
Kind Code:
B2
Abstract:
A liquid crystal aligning agent which contains component (A) and component (B). Component (A): At least one polymer which is selected from the group consisting of polyimide precursors having at least one structure selected from the group consisting of formula [1A] and formula [1B] and polyimides obtained by imidizing the polyimide precursors. (In the formulae, each of XA and XC independently represents a protecting group which is replaced by a hydrogen atom by means of heat; and XB represents a single bond or an organic group having 1-40 carbon atoms, wherein an ester group (-COO- group) is bonded to a carbon atom.) Component (B): A polyamic acid which is obtained from a tetracarboxylic acid component containing a tetracarboxylic acid dianhydride represented by formula (B-1) and a diamine component containing a diamine represented by formula (B-2). (In the formulae, Y1 represents a divalent organic group having at least one structure selected from the group consisting of an amino group, an imino group and a nitrogen-containing heterocyclic ring; and each of B1 and B2 independently represents a hydrogen atom, an optionally substituted alkyl group having 1-10 carbon atoms, or the like.)
Inventors:
Sakumoto Naoki
Yamagaki Daiki
Yousuke Iinuma
Yamagaki Daiki
Yousuke Iinuma
Application Number:
JP2015543889A
Publication Date:
October 30, 2019
Filing Date:
October 22, 2014
Export Citation:
Assignee:
Nissan Chemical Co., Ltd.
International Classes:
G02F1/1337; C08G73/10; C08L79/08
Domestic Patent References:
| JP2010156953A | ||||
| JP2010266477A |
Foreign References:
| WO2011115118A1 |
Attorney, Agent or Firm:
Kenji Izumina
Toshiharu Ogawa
Toshiharu Ogawa