Patent ID: 7419620
Filing Date: 2008-09-02
Classification: C09B,C09K,G02B

Abstract:
1. A mesogenic, crosslinkable mixture, wherein at least one compound comprises more than one polymerisable group in its structure, and which mixture comprises at least one polymerisable liquid crystal comprising more than one polymerisable group, and at least one polymerisable dichroic dye selected from an anthraquinone of the formulae VI-X: wherein one to four hydrogen atoms are substituted by B wherein B wherein the broken line symbolizes the linkage to a dichroic residue and wherein: A S Z P represents a polymerisable group; m o is 0 or 1, whereby the sum of the symbols o in B or at least on polymerisable dichroic dye selected from an azo dye of the formulae IV and V: wherein R Ar  wherein p is an integer of 1 to 3 and R  B