Optically active compounds, liquid crystal compositions comprising said compounds, and liquid crystal optical modulators using said compositions
US5370821A · kind A · utility
6Cited by
10References
1Claims
0Family size
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Key dates
| Filing date | Jan 11, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Jan 11, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to optically active compounds represented by the general formula ##STR1## wherein R.sub.1, R.sub.2, Q.sub.1, Q.sub.2, Q.sub.3, ##STR2## 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.