Laterally fluorinated liquid crystal materials and frequency change devices
US4566759A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1984 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Apr 24, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/44
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid crystal composition suitable for use as a two-frequency material in a two-frequency switching device comprises a mixture of: PA0 a first component comprising at least one diester compound having a formula: ##STR1## where R.sub.1 is an alkyl or alkoxy group, Z is an cycloalkyl or aryl ring structure and R.sub.2 is alkyl, alkoxy or halogen; or CN; and a second component comprising at least one compound having a formula: ##STR2## wherein R.sub.3 and R.sub.4 is each independently an alkyl or alkoxy group, ##STR3## is a trans-1,4-disubstituted cyclohexane or a benzene ring, Y is a cycloalkyl ring or a benzene ring optionally having a lateral halogen substituent and n is 0 or 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.