发明名称 |
LIQUID CRYSTAL ALIGNING AGENT CONTAINING POLYIMIDE PRECURSOR HAVING THERMALLY-LEAVING GROUP AND/OR POLYIMIDE |
摘要 |
To provide a liquid crystal aligning agent to obtain a liquid crystal alignment film which is excellent in the adhesion to a sealing agent and a substrate of a liquid crystal display device, and of which a decomposed product formed after irradiation with ultraviolet rays will easily be removed.;A liquid crystal aligning agent containing at least one polymer selected from the group consisting of a polyimide precursor having a bond represented by the following formula (1) in its main chain and an imidized polymer of the polyimide precursor:;;wherein each of R1, R2, R3 and R4 which are independent of one another, is a hydrogen atom or a C1-20 monovalent hydrocarbon group which may have a substituent, and D is a protecting group to be replaced with a hydrogen atom by heat. |
申请公布号 |
US2016264867(A1) |
申请公布日期 |
2016.09.15 |
申请号 |
US201415031547 |
申请日期 |
2014.10.22 |
申请人 |
NISSAN CHEMICAL INDUSTRIES, LTD. |
发明人 |
KUNIMI Naho;SAKUMOTO Naoki;MANDAI Atsuhiko |
分类号 |
C09K19/56;C09D179/08;C08G73/10 |
主分类号 |
C09K19/56 |
代理机构 |
|
代理人 |
|
主权项 |
1. A liquid crystal aligning agent comprising at least one polymer selected from the group consisting of a polyimide precursor having a bond represented by the following formula (1) in its main chain and an imidized polymer of the polyimide precursor:wherein each of R1, R2, R3 and R4 which are independent of one another, is a hydrogen atom or a C1-20 monovalent hydrocarbon group which may have a substituent, and D is a protecting group to be replaced with a hydrogen atom by heat. |
地址 |
Chiyoda-ku, Tokyo JP |