Optically active-2-methylbutyrate and materials using the same
US4876026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1987 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Dec 15, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/3463
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An optically active-2-methylbutyrate capable of imparting a spontaneous polarization value to achiral smectic compositions and also constituting ferroelectric liquid crystal compositions exhibiting a fast response at room temperature, and a liquid crystal composition containing the same, and further a light-switching element therefrom, are provided, which optically active-2-methylbutyrate is expressed by the formula ##STR1## wherein R represents a linear or branched alkyl group or alkoxy group, each of 1 to 18 carbon atoms; A represents ##STR2## wherein X represents any one of F, Cl, Br or cyano group; and * indicates an optically active carbon atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.