Liquid-crystalline carbonic acid esters and liquid crystal compositions containing same
US4647398A · kind A · utility
25Cited by
7References
5Claims
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Key dates
| Filing date | Jan 17, 1985 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Jan 17, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/2021
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel chiral smectic ester compounds suitable for a display mode utilizing ferroelectric liquid crystals, and liquid crystal compositions containing the same are provided, which compounds are expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 18 carbon atoms; R* represents an optically active alkyl group of 4 to 18 carbon atoms; X represents either one of a single bond, --O-- ##STR2## A represents ##STR3## and m and n each is 1 or 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.