Ferroelectric liquid crystal compounds containing chiral haloalkyoxy tail units and compositions containing them
US5051506A · kind A · utility
16Cited by
7References
21Claims
0Family size
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Key dates
| Filing date | Mar 4, 1988 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Mar 4, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/586
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Chiral, nonracemic compounds of the general formula: ##STR1## wherein m and n are either both zero, both equal one or n is equal to one and m is equal to zero, X and Y and Z are halogens, R' is an alkyl or alkoxy group having three to fifteen carbons, R is an alkyl group having one to fifteen carbons, and Ar is a 4,4'-substituted phenylvenzoate, 4,4'-substituted biphenylbenzoate, 5,4-substituted 2-phenylpyrimidine or 4,4'-substituted biphenyl core, and wherein * indicates a chiral center, which are useful as ferroelectric liquid crystal components having high polarization are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.