Title:
LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/085674
Kind Code:
A1
Abstract:
A liquid crystal aligning agent containing at least one type of polymer (A) selected from: a polyamide precursor that has a repeating unit (a1) shown in formula (1), wherein Y1 represents an organic group shown in formula (H), and a repeating unit (a2) shown in formula (2), wherein Y2 represents an organic group shown in formula (O); and a polyimide that is an imidized product of the polyimide precursor. In formula (H), at least one R represents a halogen atom or a halogenated alkyl group. In formula (O), Ar each independently represent a benzene ring, a biphenyl structure, or a naphthalene ring, wherein any hydrogen atom may be substituted by a halogen atom or a monovalent organic group. Q2 represents a –(CH2)n– that may be partially substituted by –O–, –C(=O)–, or –O–C(=O)– (n being an integer 2–18).
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Inventors:
MIYAMOTO YASUHIRO (TW)
Application Number:
PCT/JP2021/038571
Publication Date:
April 28, 2022
Filing Date:
October 19, 2021
Export Citation:
Assignee:
NISSAN CHEMICAL CORP (JP)
International Classes:
G02F1/1337; C08G73/10
Domestic Patent References:
| WO2019193855A1 | 2019-10-10 | |||
| WO2016152928A1 | 2016-09-29 |
Foreign References:
| JP2015135464A | 2015-07-27 | |||
| JP2011237755A | 2011-11-24 |
Attorney, Agent or Firm:
TAKAOKA Ryoichi et al. (JP)
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