Liquid crystal coupled dichloric dyes

C - Chemistry – Metallurgy – 09 – B

Patent

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31/105, 260/157,

C09B 33/00 (2006.01) C09B 1/14 (2006.01) C09B 31/043 (2006.01) C09B 31/062 (2006.01) C09B 35/50 (2006.01) C09B 43/28 (2006.01) C09B 69/00 (2006.01) C09K 19/60 (2006.01)

Patent

CA 2031797

Modifiers for pleochroic, and in particular dichroic, dyes in which a linking group contains a spacing chain of at least four linearly linked atoms that is coupled at one end to a liquid crystal moiety and is connectable at the other end to a nonionic dye chromophore to a nonionic dye to form a modified dichroic dye, to such modified dye compounds, and to their use in guest-host compositions and devices containing the dye compounds, are disclosed.

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