Liquid crystalline biphenyl derivatives and mixtures thereof

Details Liquid crystalline biphenyl derivatives and mixtures thereof Liquid crystalline biphenyl derivatives and mixtures thereof

1984-05-24

1986-09-30

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522995, 25229965, 350350R, 350350S, 560 55, 560 61, 560 73, 560 74, 560107, 560108, 560141, 568333, 568642, 568643, 558411, 558423, C09K 334, G02F 113, C07C 69773, C07C 6988, C07C 43205

Patent

active

046146091

ABSTRACT:
Chiral smectic compounds having a high response rate and being superior as a ferroelectric liquid crystalline material, and chiral smectic mixtures containing the same are provided, which compounds being expressed by the formula ##STR1## wherein X represents --CH.sub.2 --, --O-- or --CO--; n represents 0, 1 or 2; when X represents --CH.sub.2 --, Y represents R--, R--CO--, ROCO--, ##STR2## wherein R represents an alkyl group having 1 to 18 carbon atoms, and when X represents --O-- or --CO--, Y represents R; and * represents a symbol indicating an optically active carbon atom.

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Patel, Shailemdra B., J. Inst. Chem. (India), vol. 52(2), pp. 99-101 (1982).
Goodby, J. W., et al., Liq. Cryst. and Ordered Fluids, vol. 4, pp. 1-32, Plenum Press, N.Y. (1984), presented at ACS Symposium held Mar. 29-Apr. 1, 1982, Las Vegas, Nev.
Gray, G. W., et al, Mol. Cryst. Liq. Cryst., vol. 37, pp. 157-211 (1976).
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