2-(4'-alkoxyphenyl)-5-alkylpyridines

Details 2-(4'-alkoxyphenyl)-5-alkylpyridines 2-(4'-alkoxyphenyl)-5-alkylpyridines

1987-03-20

1989-01-03

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 2522995, 350350S, 546339, G02F 113, C09K 1934, C07D21330, C07D30906

Patent

active

047955872

ABSTRACT:
A novel liquid crystal compound exhibiting SC phase which, when added to an optically active liquid crystal, makes the resulting chiral smectic liquid crystal material exhibit superior performances in liquid crystal display elements utilizing the ferroelectricity of the material, and a chiral smectic C composition using the compound, which compound is expressed by the formula ##STR1## wherein R.sup.1 l represents an alkyl group of 7 to 12 carbon atoms and R.sup.2 represents an alkyl group of 5 to 12 carbon atoms.

REFERENCES:
patent: 4622165 (1986-11-01), Kano et al.
patent: 4684220 (1987-08-01), Shionozaki et al.
patent: 4684477 (1987-08-01), Sugimori
Pavluchenko, A. I., et al., Advances in Liquid Crystal Research and Applications, Bata, L., Perlamom Press, Oxford, (1980) pp. 1007-1013.
Demus, O., et al., Flussige Kristalle in Tabellen II, Veb Deutscher Verlag fur Grumastoffindustrie, Leipeig, pp. 363-364 (1984).
Gray, G. W., et al., Liquid Crystals & Plastic Crystals, vol. 1, pp. 165-166, John Wiley & Sons, N.Y. (1974).

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