Liquid crystal aligning agent, liquid crystal alignment film, liquid crystal element and polymer
US11193067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2017 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Sep 24, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2219/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
According to the present invention, a liquid crystal aligning agent is configured to contain a polymer [P] which has a partial structure represented by formula (1) and comprises a photo-alignment group. In formula (1), each of R1 and R2 independently represents a hydrogen atom, a halogen atom or a monovalent organic group having one or more carbon atoms; and each of X1 and X2 independently represents —OH, —NH2 or a monovalent organic group having one or more carbon atoms, provided that at least one of X1 and X2 represents “—OR3” or “—NR3R4” (wherein each of R3 and R4 independently represents a hydrogen atom or a monovalent organic group having one or more carbon atoms).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.