Liquid-crystalline substituted biphenyl esters

Details Liquid-crystalline substituted biphenyl esters Liquid-crystalline substituted biphenyl esters

1986-08-08

1988-04-12

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229965, 3503505, 558414, 558416, 558273, 558275, 560 1, 560 66, 560 73, 560108, 560 51, 560 86, C09K 1930, C09K 1912, C07C 6976, C07C 6974

Patent

active

047373130

ABSTRACT:
Novel ferroelectric liquid crystals exhibiting a chiral smectic C phase and liquid crystal compositions containing the same are provided, which liquid crystals are substituted biphenyl esters expressed by the general formula ##STR1## wherein R.sub.1 * represents an optically active alkyl group of 4 to 18 carbon atoms; ##STR2## represents ##STR3## or ##STR4## Z represents R.sub.2, R.sub.2 CO or R.sub.2 COO wherein R.sub.2 represents an alkyl group or an alkoxy group each of 1 to 18 carbon atoms; and X and Y each represent hydrogen atom (H), bromine atom (Br), chlorine atom (Cl), fluorine atom (F) or cyano group (CN), and either one of X or Y is always hydrogen atom.

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patent: 4613209 (1986-09-01), Goodby et al.
patent: 4614609 (1986-09-01), Inoue et al.
patent: 4622165 (1986-11-01), Kano et al.
patent: 4689176 (1987-08-01), Inoue et al.
Goodby et al, Liquid Crystals Ordered Fluids, 1984, vol. 4, pp. 1-32, from Proceedings of ACS Symposium in USA 1982.
Gray et al, MCLC, 1976, vol. 37, pp. 157-188.

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