Benzene derivatives, and liquid-crystalline medium

Details Benzene derivatives, and liquid-crystalline medium Benzene derivatives, and liquid-crystalline medium

1996-08-02

1998-02-17

Kelly, C. H.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229963, 25229901, 25229961, 25229962, C09K 1912, C09K 1930, C09K 1954

Patent

active

057188408

ABSTRACT:
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which R, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, X, L and m are as defined in claim 1.

REFERENCES:
patent: 4877548 (1989-10-01), Kitano et al.
patent: 5230829 (1993-07-01), Bartmann et al.
patent: 5308542 (1994-05-01), Poetsch et al.
patent: 5389289 (1995-02-01), Rieger et al.
patent: 5389295 (1995-02-01), Wachtler et al.
patent: 5397505 (1995-03-01), Rieger et al.

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