Liquid crystals esters
US4542230A · kind A · utility
18Cited by
7References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1980 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | Sep 30, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/3068
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid crystal ester has a structure: ##STR1## where X and Y are fluorine or hydrogen at least one being hydrogen, and Z is either: (a) ##STR2## where R.sub.2 is alkyl, alkoxy, alkylcarbonyloxy or alkoxycarbonyloxy (b) ##STR3## where R.sub.3 is an alkyl group. The ester may be prepared by a conventional esterification from the corresponding phenol ##STR4## and the corresponding acid chloride Z--COCl. The ester may be used in mixtures with other liquid crystal compounds for use in known electro-optic devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.