Nematic liquid crystalline substances

Details Nematic liquid crystalline substances Nematic liquid crystalline substances

1973-07-20

1978-07-11

Padgett, Benjamin R.

Compositions

Radioactive compositions

Nuclear reactor fuel

23230LC, 252299, 260463, 560 67, C09K 334, G02F 113

Patent

active

040998568

ABSTRACT:
As the liquid crystal substance in electro-optical devices or as the stationary phase in gas chromatography is employed a compound of the formula ##STR1## in which R.sub.1 and R.sub.2 each is C.sub.n H.sub.2n+1 --, C.sub.n H.sub.2n+1 O--, C.sub.n H.sub.2n+1 COO-- or C.sub.n H.sub.2n+1 OCOO--, n being an integer of from 1 to 10, and R.sub.3 is Cl--, Br--, CH.sub.3 --, C.sub.2 H.sub.5 --, CH.sub.3 CO-- or CH.sub.3 OOC--.

REFERENCES:
"Liquid Crystals, II, Unsymmetrical p-Phenylene Di-p-n-Alkoxy-Benzoates," S. Haut, D. Schroeder, and J. Schroeder, J. Org. Chem. vol. 37, No. 9, 1972, pp. 1425-1428.
"Molecular Structure and Liquid Crystallinity, Phenylene Bis (Alkoxybenzoates)," S. Arora, J. Fergason, T. Taylor, J. Org. Chem., vol. 35, No. 12 (1970), pp. 4055-4058.
Arora, S. L., et al., Molecular Crystals and Liquid Crystals, vol. 10, pp. 243-257 (1970).
Kast, Landolt-Bornstein, vol. II, part 2a, 6th ed., Springer-Verlag, Berlin, pp. 266-267, 295 (1960).

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