Nematic liquid-crystalline phases

Details Nematic liquid-crystalline phases Nematic liquid-crystalline phases

1989-08-04

1994-06-07

Tucker, Philip

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

C09K 1930

Patent

active

053187210

ABSTRACT:
The invention relates to the use of trifluorotoluene derivatives of the formula I ##STR1## in which R.sup.1 is alkyl having 1 to 12 carbon atoms in which, in addition, one or more non-neighboring CH.sub.2 groups may be replaced by --O--, --CO--, --O--CO--, --CO--O--, --O--CO--O--, --CH-halogen, --CH--CN-- and/or --CH.dbd.CH--,

REFERENCES:
patent: 4229315 (1980-10-01), Krause et al.
patent: 4340498 (1982-07-01), Sugimori
patent: 4398803 (1983-08-01), Pohl et al.
patent: 4871469 (1989-10-01), Reiffenrath et al.

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