Mixtures of nematic liquid crystal materials

Details Mixtures of nematic liquid crystal materials Mixtures of nematic liquid crystal materials

1976-06-28

1978-05-23

Padgett, Benjamin R.

Compositions

Liquid crystal compositions

252408, 350350, C09K 334, G02F 113

Patent

active

040909751

ABSTRACT:
Liquid crystal mixtures are disclosed which contain 30-60% of a Schiff's base nematic liquid crystal compound, 25-65% of a second nematic liquid crystal compound selected from the classes of azoxy, ester and biphenyl, and 5-15% of a triphenyl compound to raise the isotropic transition temperature. This combination results in liquid crystal compositions having unexpectedly wide nematic temperature ranges.

REFERENCES:
patent: 3655270 (1972-04-01), Creagh
patent: 3716289 (1973-02-01), Creagh et al.
patent: 3772209 (1973-11-01), Batesky
patent: 3815972 (1974-06-01), Hsieh
patent: 3881806 (1975-05-01), Suzuki
patent: 3915883 (1975-10-01), Van Meter et al.
patent: 3923857 (1975-12-01), Boller et al.
patent: 3927064 (1975-12-01), Boller et al.
patent: 3953491 (1976-04-01), Steinstrasser et al.
patent: 3960752 (1976-06-01), Klanderman et al.
patent: 3975286 (1976-08-01), Oh
patent: 3988054 (1976-10-01), Yaguchi et al.
Elliott, G., et al., Electronics Letters, vol. 9, No. 17, pp. 399-401 (8/1973).

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