Liquid crystalline carbonic acid esters and liquid crystal compositions containing the same
US4589996A · kind A · utility
45Cited by
7References
7Claims
0Family size
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Key dates
| Filing date | Aug 28, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Aug 28, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/2021
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel chiral liquid crystalline compound having an optically active group and a liquid crystal composition containing the same are provided, which compound is expressed by the general formula ##STR1## wherein R is a linear chain or branched alkyl group of 1.about.18 C; l is 0 or 1; X is COO or --O-- in the case of l=0 and COO, --O-- or --CH.sub.2 -- in the case of l=1; and * represents optically active carbon, and which compound, when used as a display element, brings about a higher response velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.