Liquid crystalline ester compounds and mixtures thereof

Details Liquid crystalline ester compounds and mixtures thereof Liquid crystalline ester compounds and mixtures thereof

1987-01-08

1989-05-30

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 25229967, 25229966, 558270, 558271, 560 59, 560 66, 560 73, 560108, 560141, 350350S, C09K 1912, C09K 1920, C09K 1952, G02F 113

Patent

active

048349070

ABSTRACT:
Novel chiral smectic liquid crystalline ester compounds having a superior stability and exhibiting a high response rate when used in the form of display elements and chiral smectic mixtures containing at least one of these compounds are provided, which compounds are expressed by the formula ##STR1## wherein n is an integer of 2 to 16; l is 0, 1 or 2; m is 1 or 2 under the condition of l+m.gtoreq.2; X represents methylene group --CH.sub.2 -- or single bond when l is zero, methylene group --CH.sub.2 -- or ether linkage --O-- when l=1 or ether linkage --O-- when l=2; and Y represents R, OR, --COR, --OCOR, --OCOOR or --COOR wherein R throughout represents an alkyl group of 1 to 18 carbon atoms; and asterisk * shows an optically active carbon atom.

REFERENCES:
patent: 4065489 (1977-12-01), Steinstrasser
patent: 4083797 (1978-04-01), Oh
patent: 4149413 (1979-04-01), Gray et al.
patent: 4195916 (1980-04-01), Coates et al.
patent: 4257911 (1981-03-01), Gray et al.
patent: 4576732 (1986-03-01), Isogai et al.
patent: 4596667 (1986-06-01), Inukai et al.
patent: 4613209 (1986-09-01), Goodby et al.
patent: 4614609 (1986-09-01), Inoue et al.
patent: 4647398 (1987-03-01), Saito et al.
patent: 4689176 (1987-08-01), Inoue et al.
patent: 4710585 (1987-12-01), Taguchi et al.
patent: 4728458 (1988-03-01), Higuchi et al.
Gray et al, Mol. Cryst. Liq. Cryst., vol. 34 Letters, pp. 211-217 (1977).
Goodby & Leslie, Liquid Crystals and Ordered Fluids, vol. 4, 1984, pp. 1-32.
Gray & McDonnell, Mol. Cryst. Liq. Cryst., 1976, 37, pp. 189-211.
Gray & Goodby, Mol. Cryst. Liq. Cryst., 1976, 37, pp. 157-188.

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