19 -hydroxy carboxylic acid derivatives suitable for use in liquid crystal materials and devices
US4852977A · kind A · utility
2Cited by
13References
7Claims
0Family size
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Key dates
| Filing date | Aug 19, 1986 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Aug 19, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/586
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel lactic acid derivatives which may be used as a component of a ferroelectric smectic liquid crystal mixture, which derivatives have the general formula: ##STR1## in which R.sub.1 is alkyl or alkoxy and R.sub.2 is alkyl. Liquid crystalline compositions containing these compounds are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.