Anisotropic compounds and liquid crystal mixtures
US4723005A · kind A · utility
24Cited by
18References
7Claims
0Family size
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Key dates
| Filing date | Sep 10, 1984 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Sep 10, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/3458
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New anisotropic compounds of the formula (1) are useful in liquid crystal mixtures for electrooptical displays; at least one of the end groups of the compounds (1) is an alkyl group which carries cyano or halogen in a terminal or non-terminal position. This offers advantages for longitudinal polarization and/or cross-polarization of the anisotropic compounds with the aid of the comparatively highly polarizing cyano or halogen substituents, in particular high clear points, low .DELTA..epsilon./.epsilon..perp. values and/or negative .DELTA..epsilon. values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.