Chiral liquid crystal compounds mixtures and devices...

Details Chiral liquid crystal compounds mixtures and devices... Chiral liquid crystal compounds mixtures and devices...

C - Chemistry, Metallurgy

07

C

31/105, 260/474,

C07C 255/31 (2006.01) C07C 255/38 (2006.01) C09K 19/08 (2006.01) C09K 19/12 (2006.01) C09K 19/20 (2006.01) C09K 19/30 (2006.01)

Patent

CA 1317975

P 0383. Abstract CHIRAL LIQUID CRYSTAL COMPOUNDS: MIXTURES AND DEVICES CONTAIN- -ING THEM. Optically active compounds of formula: X-Y-W-?H-B where X has a structure: Image and B is C1-12 alkyl, a chiral group or a group having a general structure: Image where R and R' are H, C1 - 12 alkyl, alkoxy, alkylcarbonyloxy, or alkoxycarbonyl, each ring Image and Image is the same or different, A and D are single bonds or bridging groups, each a and d is 0 or 1; Z, Z' are CN, Cl, F, Br or CF3; provided when Z is CN or Cl, then when B is alkyl X-Y is not: Image or Image Ferroelectric smectic liquid crystal mixtures containing these compounds are also described.

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