Phenyl naphthalenes having liquid crystalline properties

Details Phenyl naphthalenes having liquid crystalline properties Phenyl naphthalenes having liquid crystalline properties

1991-07-16

1993-10-12

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

585 26, 558425, 568632, 570129, C09K 1932, C07C 4100, C07C25500, C07C 1908

Patent

active

052522539

ABSTRACT:
##STR1## Novel phenyl naphthalenes of general formula (I) wherein R.sub.1 and R.sub.2 are selected from C.sub.1-15 alkyl, alkoxyl, perfluoroalkyl, perfluoroalkoxyl and alkynyl, R.sub.1 may also be CN and R.sub.2 may also be fluorine or NCS; m is 0, 1 or 2 provided that if R.sub.1 is alkyl or alkoxyl and R.sub.2 is alkyl, alkoxyl, perfluoroalkyl or CN then m is 1 or 2. These have liquid crystalline characteristics and may be used as constituents of both nematic and smectic C liquid crystal materials.

REFERENCES:
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patent: 4438268 (1984-03-01), Zaschke et al.
patent: 4886619 (1989-12-01), Janulis
patent: 5072021 (1991-12-01), Nakatsuka et al.
patent: 5082587 (1992-01-01), Janulis
patent: 5146025 (1992-09-01), Koyama et al.

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