- Dichroic mixture
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A mesogenic, crosslinkable mixture comprising at least one polymerisable liquid crystal and at least one polymerisable dichroic dye of the general formula I: whereinArepresents a dichroic residue exhibiting at least partial absorption in the visible region > 400 nm;n1, n2, n3, n4signifies 0 or 1 whereby the sum of n1, n2, n3 and n4 is >0, andB1 to B4represent a group of substructure II wherein the broken line symbolises the linkage to said dichroic residue.
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