Fluorocyclohexene-dioxane derivatives
US5662829A · kind A · utility
1Cited by
10References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1996 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Feb 23, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/3422
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds of the following formula are useful as liquid crystals: ##STR1## wherein R is a C.sub.1 -C.sub.12 alkyl or a C.sub.2 -C.sub.12 alkenyl; PA1 A is a single bond or trans-1,4-cydohexylene; PA1 Z.sup.1 and Z.sup.2 are independently a single bond or --CH.sub.2 CH.sub.2 --, except Z.sup.1 and Z.sup.2 cannot simultaneously be --CH.sub.2 CH.sub.2 --; PA1 ring B is trans-1,4-cyclohexylene or 1,4-phenylene; and PA1 n is 0 or 1, Liquid crystalline mixtures which contain such compounds are especially useful in electro-optical indicating devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.