Pyridine derivatives and their use in liquid crystals

Details Pyridine derivatives and their use in liquid crystals Pyridine derivatives and their use in liquid crystals

Filed on

1986-02-27

Date issued

1987-08-04

Examiner

Jiles, Henry R.

Patent Class

Compositions

SubClass

Liquid crystal compositions

SubSubClass

Containing nonsteryl liquid crystalline compound of...

Other Related Categories

2522995, 350350R, 546286, 546301, 546302, 546303, 546290, 546348, 546343, 546345, C09K 1934, C09K 1954, C07D21178, C07D21172

Type

Patent

Status

active

Patent number

046844775

Description

ABSTRACT:
A novel pyridine derivative which, when added to liquid crystal substances, can improve various specific features required for the resulting liquid crystal compositions, and a liquid crystal composition containing the same are provided, which pyridine derivative is expressed by the formula ##STR1## wherein W represents H or F; X, F, Cl or alkyl or alkoxy of 1.about.10 C; ##STR2## n, 0 or 1; Y, CN or alkyl or alkoxy of 1.about.10 C; Z, F, Cl or H; and when Z is F or Cl, Y is limited to CN, excluding certain identified compounds.

REFERENCES:
patent: 4533488 (1985-08-01), Fukui et al.
Karamysheva et al., Mol. Cryst. Liq. Cryst., 1981, vol. 67, pp. 241-252.
Pavluchenko et al., Advances in Liquid Crystal Research and Applications, 1980, pp. 1007-1013.
Grachev et al., Mol. Cryst. Liq. Cryst., 1981, vol. 65, pp. 133-144.

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