Pyramidal liquid crystals
US4619788A · kind A · utility
3Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1985 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Oct 18, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to hexa-substituted tribenzocyclononatriene derivats constituting a new type of liquid crystals with novel "pyramidal" mesophases. The compounds of the invention differ from the known liquid crystals in their different steric molecular structure. Their molecules consist of a rigid central nucleus of pyramidal structure, the chains of substituents being symmetrically attached to the basis of the pyramid. The compounds of the invention have an electric dipole moment and can be excited in the electric field. Therefore, they are suitable for use in memory devices and/or electro-optical display means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.