Optically active compounds, and a liquid-crystalline phase

Details Optically active compounds, and a liquid-crystalline phase Optically active compounds, and a liquid-crystalline phase

1992-10-05

1995-02-28

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229961, 25229966, 25229967, 544298, 544224, 546339, 548136, 568631, 568647, 359103, C09K 1930, C09K 1934, C09K 1912, G09F 113

Patent

active

053934598

ABSTRACT:
The invention relates to optically active compounds of the formula I ##STR1## in which R is an alkyl or alkenyl radical having up to 15 carbon atoms which is unsubstituted, monosubstituted by --CN or at least monosubstituted by fluorine or chlorine, it also being possible for a CH.sub.2 group in these radicals to be replaced by --O--, --CO--, --O--CO--, --CO--O-- or --O--CO--O--,

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patent: 4918213 (1990-04-01), Nohira et al.
patent: 4921632 (1990-05-01), Nakamura et al.
patent: 4985583 (1991-01-01), Eidenschink et al.
patent: 4986631 (1991-01-01), Eidenschink et al.
patent: 5108652 (1992-04-01), Eidenschink et al.

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