Liquid crystal compounds
US4664840A · kind A · utility
24Cited by
27References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1984 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Nov 20, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/3068
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Anisotropic compounds of the following formula: ##STR1## wherein ##STR2## is selected from the group consisting of ##STR3## Z represents a covalent bond or a carboxyl group --C(O)O--, R is selected from the group consisting of hydrogen, C.sub.1 -C.sub.12 alkyl, and C.sub.1 -C.sub.12 alkoxy and X.sup.2 and X.sup.3 may be the same or different and are selected from the group consisting of hydrogen, halogen, and nitrile, with the proviso that at least one of the groups X.sup.2 and X.sup.3 is not hydrogen, are useful as components of liquid crystal mixtures for elektrooptical twist cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.