Anisotropic compounds having nematic phase and liquid crystal mi

Details Anisotropic compounds having nematic phase and liquid crystal mi Anisotropic compounds having nematic phase and liquid crystal mi

1993-01-21

1994-08-16

Shah, Mukund J.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

544298, 544335, C07D23902, C09K 334, G02F 113

Patent

active

053384830

ABSTRACT:
Liquid crystal mixtures comprise one compound of the formula: ##STR1## wherein --A is selected from the group consisting of ##STR2## wherein R.sub.1 is independently C1-12 straight or branched alkyl or C1-12 straight or branched alkoxy and R.sub.2 is independently C1-12 straight or branched alkyl, X is selected from the group consisting of fluorine, chlorine, bromine, iodine and nitrile, and n is 1 or 2. The mixtures exhibit improved properties for image displays.

REFERENCES:
patent: 4256656 (1979-10-01), Beguin et al.
patent: 4391730 (1983-07-01), Kuschel et al.
patent: 4410445 (1983-10-01), Baur et al.

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