Liquid-crystalline dielectric

Details Liquid-crystalline dielectric Liquid-crystalline dielectric

1979-07-20

1981-08-25

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

252408, 350350R, C09K 334, C02F 113

Patent

active

042858291

ABSTRACT:
A liquid-crystalline dielectric having a positive dielectric anisotropy comprises a biphenyl derivative of the formula ##STR1## wherein R.sub.1 is alkyl of 1-4 C atoms or alkoxy of 1-3 C atoms, and a phenylcyclohexane derivative of the formula ##STR2## wherein R.sub.2 is alkyl of 1-4 C atoms, in a weight ratio of 3:1 to 1:3.

REFERENCES:
patent: 3947375 (1976-03-01), Gray et al.
patent: 4011173 (1977-03-01), Steinstrasser
patent: 4065489 (1977-12-01), Steinstrasser et al.
patent: 4073742 (1978-02-01), Erdmann et al.
patent: 4077900 (1978-03-01), Pohl et al.
patent: 4130502 (1978-12-01), Eidenschink et al.
patent: 4154697 (1979-05-01), Eidenschink et al.
patent: 4181625 (1980-01-01), Eidenschink et al.
patent: 4229315 (1980-10-01), Krause et al.

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