Pyridazines

Details Pyridazines Pyridazines

1982-07-12

1984-06-05

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

2522995, 25229967, 350346, 350350R, 544224, 544239, C09K 334, G02F 113, C07D23702, C07D23708

Patent

active

044527187

ABSTRACT:
Compounds of the formula ##STR1## wherein R.sup.1 is straight-chain alkyl of 1 to 12 carbon atoms, R.sup.2 is alkyl, alkoxy, p-alkylphenyl, p-alkoxyphenyl or trans-4-alkylcyclohexyl, and the alkyl and alkoxy groups in R.sup.2 each are straight-chain groups of 1 to 10 carbon atoms,
their manufacture, liquid crystalline mixtures containing said compounds as well as their use for electro-optical purposes are described. The novel compounds are valuable components for liquid crystalline mixtures and have a negative dielectric anisotropy.

REFERENCES:
patent: 3997536 (1976-12-01), Boller et al.
patent: 4062798 (1977-12-01), Boller et al.
patent: 4273929 (1981-06-01), Boller et al.
patent: 4309539 (1982-01-01), Boller et al.
patent: 4335011 (1982-06-01), Sethofer
patent: 4344856 (1982-08-01), Demus et al.
patent: 4348298 (1982-09-01), Zaschke et al.
patent: 4358589 (1982-11-01), Schubert et al.
patent: 4364838 (1982-12-01), Boller et al.
patent: 4419262 (1983-12-01), Petrzilka
Nash, J. A. et al., Mol. Cryst. Liq. Cryst., vol. 25, pp. 299-321 (1974).
Schubert, H. et al., Z. Chem., vol. 6, No. 12, p. 467 (1966).
Weygand, C. et al., J. Prakt. Chem., vol. 155, pp. 221-226 (1938).
Zaschke, H. et al., Z. Chem., vol. 17(9), pp. 333-334 (1977).
Schubert, H., Wiss. Z. Univ. Halle XIX'70 M, H. 5, 5.1-18.
Boller, A. et al., Mol. Cryst. Liq. Cryst., vol. 42, No. 1-3, pp. 215-231 (1977).
Gray, G. W., Mol. Cryst. Liq. Cryst., vol. 53, pp. 147-166, (1979).
Gray, G. W., Mol. Cryst. Liq. Cryst., vol. 63, pp. 3-18, (1981).
Chem. Abst. 66:54977e (1967).
Chem. Abst. 10:153,4 (1939).
Chem. Abst. 88:6824k (1978).

Affiliated with

Also associated with

Rating

Pyridazines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pyridazines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyridazines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1496503