Silacyclohexane compounds, preparation thereof, liquid crystal compositions comprising the same, and liquid crystal devices comprising the composition
US6004478A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1996 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Mar 15, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A silacyclohexane compound of the formulas (I) ##STR1## wherein R represents an organic residue, ##STR2## represents an unsubstituted or substituted silicon-containing cyclohexylene group or a 1,4-cyclohexylene group, ##STR3## represents an unsubstituted or substituted phenylene, an unsubstituted or substituted silicon-containing cyclohexylene group or trans-4-sila-1,4-cyclohexylene group, or a 1,4-cyclohexylene group provided that at least one of these residues represents a silicon-containing cyclohexylene group, j, k and l are, respectively, 0 or 1, L.sub.1 and L.sub.2, respectively, represent H or F, m and n are, respectively, 0, 1 or 2 provided that m+n=2, 3 or 4, and X represents H, F or Cl. A liquid crystal composition comprising the silacyclohexane compound of the above formula is also described, along with a liquid crystal device comprising the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.