Cinnamic acid derivatives
US10465115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2016 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Nov 18, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/3416
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to cinnamic acid derivatives of formula S wherein the radicals have the meaning indicated in claim 1, to a process for their preparation and their use as self assembling photoalignment agent in liquid crystal mixtures. The invention further relates to a process for the fabrication of a liquid crystal (LC) display device with homogeneous alignment by photoaligning a liquid crystal mixture with positive or negative dielectric anisotropy comprising one or more compounds of formula S and optionally a polymerizable compound, to the liquid crystal mixture comprising the self assembling photoaligning agent and optionally the polymerizable compound and to the LC display produced by said process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.