Liquid crystal compounds containing two or more chiral centers
US4923633A · kind A · utility
8Cited by
1References
6Claims
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Key dates
| Filing date | Nov 30, 1987 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Nov 30, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A compound suitable for use in a ferroelectric smectic liquid crystal composition having a structure which contains two chiral centers derived from alpha hydroxy carboxylic acid groups and having the formula: ##STR1## wherein R.sub.1 is n-alkoxy containing 1-12 carbo atoms and R.sub.2 is n-alkyl containing 1-12 carbon atoms. Methods of preparation and details of liquid crystal mixtures containing these compounds are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.