Mesomorphic compound having .beta.-hydroxycarboxyl group as chir

Details Mesomorphic compound having .beta.-hydroxycarboxyl group as chir Mesomorphic compound having .beta.-hydroxycarboxyl group as chir

1988-12-22

1990-05-15

Terapane, John F.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229967, 2522996, 25229901, 560 59, 560 66, 560 73, 560 86, 560138, 560141, 560 65, 560 83, C09K 1906, C09K 1912, C09K 1920, C07C 6976

Patent

active

049255916

ABSTRACT:
Disclosed is a mesomorphic compound having a .beta.-hydroxycarboxyl group as the chiral source, which is represented by the formula: ##STR1## wherein m and n are integers of from 1 to 18, X.sub.1 and X.sub.2 independently represent fluorine, chlorine or hydrogen, Y represents ##STR2## or --O--, Z represents a direct bond, ##STR3## --CH hd 2O-- or --OCH.sub.2 --, and * indicates the asymmetric carbon. The mesomorphic compound is valuable as a ferroelectric liquid crystal or an additive to a ferroelectric liquid crystal or to a compound showing the SmC phase and having no chiral group.

REFERENCES:
patent: 4668427 (1987-05-01), Saito et al.
patent: 4695651 (1987-09-01), Higuchi et al.
patent: 4710585 (1987-12-01), Tagachi et al.
patent: 4728458 (1988-05-01), Higuchi et al.
patent: 4775223 (1988-10-01), Yoshinaga et al.

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