abstract |
A liquid crystalline dielectric composition contains 0.001-5% by weight of a monocyclic or bicyclic amino compound of the formula <IMAGE> wherein R1 and R2 each are hydrogen or collectively are CH2-(CH2-Z-CH2)p-CH2; X is -CH2 or -CO-; Y is -Z-CH2-CH2- or <IMAGE> Z is O, S, or NH; m and n are 0, 1 or 2; p is 1, 2 OR 3; OR AN ACID ADDITION SALT OR METAL SALT CHELATE COMPLEX THEREOF. |