Tolan derivatives, liquid crystal compositions including same, liquid crystal display devices including the compositions and method of preparation
US5314640A · kind A · utility
8Cited by
13References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 1991 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Feb 8, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A tolan derivative suitable for use in a liquid crystal composition represented by the general formula: ##STR1## wherein R is a straight chain alkyl group having from 1 to 10 carbon atoms, A is either ##STR2## or a single bond, and X is hydrogen or fluorine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.