Racemic compound and anti-ferroelectric liquid crystal composition containing the compound
US5985172A · kind A · utility
7Cited by
1References
7Claims
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Key dates
| Filing date | Nov 21, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Nov 21, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/2021
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A racemic compound of the formula (1) ##STR1## and an anti-ferroelectric liquid crystal composition consisting essentially of said racemic compound and one anti-ferroelectric liquid crystal compound of the formula (2) or a mixture of two or more compounds selected from anti-ferroelectric liquid crystal compounds of the formula (2), ##STR2## said composition having excellent steepness of threshold, having an anti-ferroelectric phase over a broad temperature range and having the performance of a high response speed and a high contrast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.