Liquid crystal materials containing substituted bicyclo(2,2,2)octanes
US4544497A · kind A · utility
3Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1984 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Jan 25, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/321
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Liquid crystal compositions are described which comprise a mixture of compounds and which includes at least one additive compound characterized in that the composition includes one or more additive compounds of Formula I as follows: ##STR1## wherein R.sub.1 represents an alkyl group, R.sub.2 represents an alkyl or alkoxy group or hydrogen and ##STR2## represents a 1,4-disubstituted bicyclo(2,2,2)octane ring. The preparation and properties of novel compounds of Formula I are also described. These liquid crystal compositions are useful in display devices such as digital calculators and word displays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.