Liquid crystals having a type A smectic phase
US4545921A · kind A · utility
6Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1983 |
| Grant date | Oct 8, 1985 |
| Priority date | — |
| Expiry date | Dec 29, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/32
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a group of organic compounds of the substituted 2-hydroxyfluorene ester type, which has a smectic A mesomorphous phase. The invention also relates to the process for producing molecules of this group. The compound according to the invention is in accordance with the general chemical formula ##STR1## whereby n can be between 1 and 15 and X=Br or CN. The invention applies to the field of liquid crystals and to display means using such crystals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.