| abstract |
Liquid crystal compositions are described which comprise a mixture of compounds and which includes at least one additive compound characterised in that the com-osition includes one or more additive compounds of Formula I as follows:n wherein R, represents an alkyl group, R 2 represents an alkyl or alkoxy group or hydrogen and n represents a 1,4- disubstituted bicyclo(2,2,2)octane ring. The preparation and properties of novel compounds of Formula I are also described. |