Bicyclohexyls
AssigneesMerck Patent GmbH, The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
InventorsRudolf Eidenschink, Michael Romer, Georg Weber, George W. Gray, Kenneth J. Toyne
Life of this patent
Estimating the term…
Abstract
New bicyclohexyls of the formula I R.sup.1 --Cy--Cy--R.sup.2 wherein R.sup.1 and R.sup.2 are each alkyl which has 1-10 C atoms and in which one or two CH.sub.2 group(s) can be replaced by O atoms, and Cy is 1,4-cyclohexylene, are suitable for use as the components of liquid-crystal dielectrics.
Claims7
In a liquid-crystal dielectric useful for electrooptical display elements and comprising at least two liquid-crystal components, the improvement wherein at least one component is a bicyclohexyl of the formula
- R.sup.1 --Cy--Cy--R.sup.2
- wherein R.sup.1 and R.sup.2 are each alkyl of 1-10 C atoms or R.sup.2 may also be alkoxy of 1-10 C atoms, and Cy is 1,4-cyclohexylene.
A dielectric of claim 10 wherein R.sup.1 and R.sup.2 are straight-chained.
Dependencies are inferred from the claim text.