Liquid crystalline compounds, liquid crystal compositions contai

Details Liquid crystalline compounds, liquid crystal compositions contai Liquid crystalline compounds, liquid crystal compositions contai

1990-07-26

1994-08-16

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229963, 25229966, 359103, 544298, 549273, C09K 1934, C09K 1900, C07D30900, G02F 113

Patent

active

053384822

ABSTRACT:
Liquid crystalline compounds having an optically active .gamma.-lactone ring of the general formula (A): ##STR1## wherein R.sup.1 is a group selected from the class consisting of ##STR2## n and e are each independently 0 or 1, R.sup.3 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, X and Y are each hydrogen atom, a halogen atom or a cyano group, R.sup.2 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, and * means an asymmetric carbon atom, a liquid crystal composition Containing the same and an element for opto-electronics devices comprising the liquid crystal composition.

REFERENCES:
patent: 5151214 (1992-09-01), Koden et al.

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