Optically active compounds, liquid crystal composition containing said compounds, and liquid crystal optical modulator using said composition
US5328643A · kind A · utility
1Cited by
7References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 26, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Feb 26, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/3463
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to optically active compounds represented by the general formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, Q.sub.1, Q.sub.2, Q.sub.3, and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal compositions comprising at least one optically active compound of formula I and their use in electrooptical display, switching and modulation devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.