NEW CLASS OF DICHROIC COLORANTS FOR USE WITH LIQUID CRYSTALS

摘要

P THE INVENTION CONCERNED OF NEW DICHROIC TETRA-AZOIC DYES OF FORMULA: BR/ (CF DRAWING IN BOPI) BR/ IN WHICH BR/ (CF DRAWING IN BOPI) BR/ AND IN WHICH R AND R REPRESENT EACH H OR OCH AND R, R AND R REPRESENT EACH H OR CH. / P P APPLICATIONS: CHOLESTERIC HOST-LIQUID CRYSTAL RECEPTORS COMPOSITIONS FOR ELECTRONIC DISPLAY DEVICES. / P