Azine liquid crystal compounds for use in light-control devices

Details Azine liquid crystal compounds for use in light-control devices Azine liquid crystal compounds for use in light-control devices

1979-07-27

1981-05-05

Gron, Teddy S.

Compositions

Liquid crystal compositions

260465R, 260465E, 252408, 350350R, 564249, C09K 334, G02F 113

Patent

active

042657849

ABSTRACT:
A light-control device includes a liquid crystal material sandwiched between a pair of planar, light-transmitting members. The liquid crystal material particularly includes an asymmetrical azine compound having the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are different para-substituents selected from the group comprising cyano, halogen, alkyl, and substituted alkyl radicals in which the alkyl radical has from one to nine carbon atoms, and wherein X and Y are selected from the group comprising hydrogen and methyl radicals.

REFERENCES:
patent: 2440070 (1948-04-01), Blout et al.
patent: 3947375 (1976-03-01), Gray et al.
patent: 4001107 (1977-01-01), Steinstrasser
patent: 4038200 (1977-07-01), Jones et al.
Kast, Landolt-Dornstein, Band II, Teil 2a, pp. 266-267, 308; Springer-Verlag, Berlin, (1960).
C. A., vol. 83, p. 502, 113780m, (1975).
C. A., vol. 85, p. 486, 159,304d, (1976).
C. A., vol. 55, 24614g, (1961).

Affiliated with

Also associated with

Rating

Azine liquid crystal compounds for use in light-control devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Azine liquid crystal compounds for use in light-control devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Azine liquid crystal compounds for use in light-control devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-295413