Liquid crystal compounds
US4512636A · kind A · utility
42Cited by
11References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Jun 7, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/3422
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel liquid crystal compound has a formula: ##STR1## where: ##STR2## is a trans-2,5-disubstituted-1,3-dioxan ring or a 2,5-disubstituted-1,3-imidine ring ##STR3## is a 1,4-disubstituted benzene ring optionally containing one or more F, Cl or CH.sub.3 groups as lateral substituents; R.sub.1 is an alkyl group; and PA1 X is a terminal group selected from H, CN, Cl, F and R.sub.2 where R.sub.2 is selected from alkyl R.sub.3, alkoxy OR.sub.3, alkylcarbonyloxy OCOR.sub.3 and alkoxycarbonyloxy OCOOR.sub.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.