Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Patent
1990-06-25
1992-09-08
Stoll, Robert L.
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
546301, 546339, C09K 1934, C07D21172, C07D21182
Patent
active
051456010
ABSTRACT:
Liquid crystal and ferroelectric liquid crystal compounds having core moieties based on nicotinic acid and having the general formula: ##STR1## where A is N or N--O and where R.sub.1 and R.sub.2, independently of one another, are straight chain or branched alkyl groups having from 1 to 20 carbons are provided. Ferroelectric liquid crystals of the present invention include those compounds in which one of R.sub.1 or R.sub.2 are chiral nonracemic groups. The pyridines and pyridine n-oxides or the present invention are useful as components of liquid crystal materials and certain of these compounds are useful as components of ferroelectric liquid crystal materials.
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Otterholm Bengt
Walba David M.
Harris C.
Stoll Robert L.
The University of Colorado Foundation Inc.
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